Grupos Investigadores

Miembros del Grupo

Colaboradores
Ángela
Abascal Imízcoz
Alex
Armand
Luis Rodrigo
Asturias
Daniel
Dols Bruno
Iván
Kim Taveras
Robert
Mudida
David
Soler Crespo
Pedro
Vicente

Líneas de Investigación

  • Capacity building
  • Economic integration
  • Innovation in developing countries
  • Macroeconomic and financial stability in developing economies
  • Targeted money transfers
  • Technology transfer

Palabras Clave

  • Development
  • Econometrics
  • Impact evaluation
  • Macroeconomics
  • Poverty
  • Randomize experiments
  • Stability

Publicaciones Científicas desde 2018

  • Autores: Caporale, G. M. (Autor de correspondencia); Gil Alaña, Luis Alberiko; Puertolas, F.
    Revista: RESEARCH IN INTERNATIONAL BUSINESS AND FINANCE
    ISSN: 0275-5319 Vol.67 N° A 2024 págs. 102087
    Resumen
    This paper analyses the stochastic behaviour of private equity returns (a measure of profitability) applying fractional integration to an extensive dataset including quarterly data spanning the last four decades for various geographical areas (US, Europe, Asia/Pacific, the Rest of the World and Total) and investment types (Buyout & Growth Equity, Venture Capital & Fund of Funds, Infrastructure, Natural Resources, Real Estate, Subordinated Capital & Distressed as well as the aggregate category All Types). The results support the hypothesis of stationarity and mean reversion in all cases; however, there are differences in the degree of persistence across regions, the series for Europe being the closest to a short-memory process, while those for the US exhibit long memory, which implies that shocks have long-lived effects. Differences are also found in the results by asset class. The implications of these findings for private equity management, profit smoothing and return benchmarking are briefly discussed.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia); Castillo, A. J.
    Revista: JOURNAL OF APPLIED METEOROLOGY AND CLIMATOLOGY
    ISSN: 1558-8424 Vol.63 N° 1 2024 págs. 85 - 103
    Resumen
    In this paper, we perform a fractional integration analysis of the average monthly temperature and precipitation data in 17 departments of Guatemala. Two analyses are performed, the first with the original data and the second with the anomalies based on the period January 1994-December 1999. The results indicate that there is a significant positive time trend in temperatures in the departments of Guatemala (0.0045 degrees C month -1), Quetzaltenango (0.0040 degrees C month -1), Escuintla (0.0034 degrees C month -1), and Huehuetenango (0.0047 degrees C month -1), whereas in the case of precipitation no time trend was observed. An important relevant result is that the departments of El Progreso, Baja Verapaz, and Guatemala occupy the second, third and fourth highest levels of persistence for both temperatures and precipitation, with Sacatepequez and Quiche displaying the first places for temperature and precipitation, respectively, thus making these five departments the ones that are most vulnerable to climate change since a shock would take a long time to disappear.
  • Autores: Gil-Ruiz, F. J.; Gil Alaña, Luis Alberiko (Autor de correspondencia); Hernandez-Herrera, M.; et al.
    Revista: HUMANITIES & SOCIAL SCIENCES COMMUNICATIONS
    ISSN: 2662-9992 Vol.11 N° 1 2024 págs. 66
    Resumen
    This paper explores the Spanish film industry to analyze the evolution of Spanish movie theater revenues up to December 2021 using both aggregated and disaggregated data by area of origin. Based on fractional integration methods, the results showed a change in persistence in the series as a result of the Covid-19 pandemic. Lower degrees of persistence are observed in the aggregated data and in the series related with the US, implying shorter effects of shocks in these cases. Nevertheless, a substantial increase in persistence after the Covid-19 is observed in all series.
  • Autores: Malmierca-Ordoqui, M. (Autor de correspondencia); Gil Alaña, Luis Alberiko; Monge, M.
    Revista: EMPIRICAL ECONOMICS
    ISSN: 0377-7332 Vol.66 N° 2 2024 págs. 859 - 882
    Resumen
    The global dominance of the dollar is unquestionable, but the European Commission is committed to strengthening the role of the euro in international relations. Most of the transactions between countries are paid in US dollars even though the United States does not participate in them. Some argue that the euro could become more powerful if it were given more presence in international trade, in particular, in the energy bill of the Eurozone. With the aim of validating that statement, this paper analyses the cointegrating structure between energy imports to the Euro Area from its main partners and those partners' currency exchange rates to the US dollar. We find that there is a bivariate fractional cointegration relationship between the series in most of the countries considered.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia); Poza, C.
    Revista: RESOURCES POLICY
    ISSN: 0301-4207 Vol.88 2024 págs. 104487
    Resumen
    This article deals with the analysis of volatility persistence in a group of metal prices, namely gold, silver, copper, platinum, aluminium, palladium, lead, zinc and tin, using monthly data from January 1994 to February 2023. Applying fractional integration techniques, the findings show that all series are highly persistent, although the prices for Gold and Silver display a limited mean reversion. The volatility was approximated by the absolute and squared returns and the results show that in the case of the annual difference returns, the series are persistent and the evidence of mean reversion is only observed for Gold and Silver. In the case of monthly differences, the hypothesis of short memory (d = 0) behavior cannot be rejected in all cases. For the absolute returns, the values are all positive, denoting a long memory ranging from 0.14 for Gold to 0.18 for Silver. For the squared returns, the values are slightly smaller but positive, ranging from 0.11 (Gold) to 0.16 (Aluminum and Palladium). The supply-side economic policy should be intensified in the case of the most volatile metals.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia); Abakah, E. J. A.; Carmona-González, N.; et al.
    Revista: JOURNAL OF ECONOMICS AND FINANCE
    ISSN: 1055-0925 2024
    Resumen
    This paper utilizes fractional integration and cointegration techniques to investigate the stochastic properties of the bilateral linkages between the Consumer Sentiment Index (CSI) of eight developed economies, Australia, Canada, France, Germany, Italy, Japan, the UK and the US and five emerging economies comprising Brazil, Russia, India, China and South Africa, for the time period from 15th January 2010 to 15th July 2019. The univariate results support fractional integration with mean reverting behaviour, with many of the series displaying orders of integration in the interval (0, 1), which connotes that shocks to consumer sentiment have significant long-lasting though reverting effects. From the covariate results and testing for cointegration, we found evidence of cointegration for Australia versus Italy, and France versus Italy. For the BRICS, the only evidence of fractional cointegration is found between Russia and India. Some policy implications of the results obtained are also mentioned at the end of the article.
  • Autores: Adekoya, O. B.; Abakah, E. J. A.; Oliyide, J. A.; et al.
    Revista: INTERNATIONAL REVIEW OF ECONOMICS AND FINANCE
    ISSN: 1059-0560 Vol.88 2023 págs. 92 - 106
    Resumen
    The market for green bonds has grown dramatically over the past several years, necessitating an understanding of the variables that might forecast its performance. Studies on how the green bond market interacts with other markets are widely discussed in the literature, but little is known about the variables that improve predictions of green bond returns. In this study, we use data on commodity and financial asset prices, as well as speculative factors, to predict the returns on green bonds using the Feasible Quasi-Generalized Least Squares (FQGLS) and the causality-inquantiles estimators. The findings demonstrate that most factors are significant predictors of the returns on green bonds, with speculative factors having a detrimental predictive influence, and commodity and financial asset prices having a mixed predictive impact. When asymmetries are taken into account, the asymmetric predictive model performs better at predicting the returns on green bonds than its symmetric counterpart in most instances. Finally, all the factors, except investors' sentiment, affect the returns on green bonds in a variety of market situations. The interdependence among the global financial and commodity markets, as well as economic uncertainties justify the established predictive influence, since green bonds are a component of the broader investment bonds.
  • Autores: Abakah, E. J. A.; Caporaleb, G. M. (Autor de correspondencia); Gil Alaña, Luis Alberiko
    Revista: HELIYON
    ISSN: 2405-8440 Vol.9 N° 5 2023 págs. e15422
    Resumen
    This paper analyses the effects of containment measures and monetary and fiscal responses on US financial markets during the Covid-19 pandemic. More specifically, it applies fractional integration methods to analyse their impact on the daily S & P500, the US Treasury Bond Index (USTB), the S & P Green Bond Index (GREEN) and the Dow Jones (DJ) Islamic World Market Index (ISLAM) over the period 1/01/2020-10/03/2021. The results suggest that all four indices are highly persistent and exhibit orders of integration close to 1. A small degree of mean reversion is observed only for the S & P500 under the assumption of white noise errors and USTB with autocorrelated errors; therefore, market efficiency appears to hold in most cases. The mortality rate, surprisingly, seems to have affected stock and bond prices positively with autocorrelated errors. As for the policy responses, both the containment and fiscal measures had a rather limited impact, whilst there were significant announcement effects which lifted markets, especially in the case of monetary announcements. There is also evidence of a significant, positive response to changes in the effective Federal funds rate, which suggests that the financial industry, mainly benefiting from interest rises, plays a dominant role.
  • Autores: Wanke, P.; Gil Alaña, Luis Alberiko (Autor de correspondencia); Tan, Y.
    Revista: PLOS ONE
    ISSN: 1932-6203 Vol.18 N° 7 2023 págs. e0287302
    Resumen
    This paper deals with the analysis of trends in road accidents on highways in Brazil. We use time series techniques based on fractional integration that allow us to determine if exogenous shocks in the data have transitory or permanent effects depending on the order of integration of the series. Our results indicate that a low degree of long memory was detected in the series with shocks having thus transitory effects over time. We further find that the number of accidents have been reducing over time, though in the presence of negative shocks, the recovery is not going to be immediate due to the long memory nature of the data. Despite the absence of relevant investment relating to infrastructure expansion, it is worth mentioning the consolidation of a nationwide tolled road system in Brazil involving concessions to private administrators, alongside more severe traffic laws that can impose limitations on driving licences.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia); Umar, H. B.; Usman, N.
    Revista: REVIEW OF DEVELOPMENT FINANCE
    ISSN: 1879-9337 Vol.13 N° 2 2023 págs. 35 - 43
    Resumen
    In this paper, we have examined the time series properties of three Nigerian REITS stocks. Our results, based on fractional integration methods, indicate that two of the REITS series -Skye Shelter Fund (SFSREIT) and Union Homes (UHOMREIT-display a mean reverting pattern, though with a very different rate of reversion, being much faster in the case of UHOMREIT and are consequently inefficient. For UPDC REIT, however, we cannot reject the null hypothesis of a unit root, thus supporting market efficiency in this case, and implying permanency of shocks. For the rest of the series examined (Brent, S&P500, US REITS and the Nigerian Exchange All Share Index), mean reversion is only found for the S&P500 if the errors are uncorrelated. Policy implications of the results obtained are reported at the end of the manuscript.
  • Autores: Bello, M.O.; Gil Alaña, Luis Alberiko; Ch'ng, K.S. (Autor de correspondencia)
    Revista: ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
    ISSN: 0944-1344 Vol.30 N° 12 2023 págs. 35384 - 35397
    Resumen
    This paper deals with the analysis of mean reversion and convergence of the ecological footprint (EF) in the MENA region. Using a long memory model based on fractional integration, we find that the results are very heterogeneous across countries depending on the assumptions made on the error term and the use of original versus logged data. Nevertheless, some conclusions can be obtained. Thus, mean reversion is decisively found in the case of Tunisia, and other countries showing some degree of reversion to the mean include Israel, Syria, Yemen, and Iran. Dealing with the issue of convergence within the MENA countries, similar conclusions hold and only Tunisia reports statistical evidence of convergence for the two types of errors. Additional evidence is found in the case of Syria, Yemen, and Jordan with uncorrelated errors and for Iran with autocorrelation. It is recommended that environmental policies targeted at stabilizing the trends in EF in the MENA region should not be indiscriminately applied in consideration of the heterogeneous nature of the series in the region.
  • Autores: Martín-Valmayor, M. A. (Autor de correspondencia); Gil Alaña, Luis Alberiko; Pardo Martín, Asís
    Revista: ECONOMIC ANALYSIS AND POLICY
    ISSN: 0313-5926 Vol.78 2023 págs. 648 - 660
    Resumen
    This paper investigates the market persistence and mean reversion properties for corn, bioethanol and gasoline prices in the US biofuel industry, evaluating long memory effects with fractional integration techniques from January 1982 to May 2022 with USDA data. Empirical results show evidence of no mean reversion properties for the prices in the three series though some support of it is found when the differences of bioethanol and gasoline are taken with respect to corn. Thus, external shocks in the original series are expected to remain persistent and would require additional policy measures to recover the original trend. Furthermore, the impact of Covid on the time series has been analyzed by comparing the scenarios pre and post pandemic, finding evidence of no major changes in the integration orders in all the series under analysis. (c) 2023 Economic Society of Australia, Queensland. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
  • Autores: Asturias-Schaub, L. R.; Gil Alaña, Luis Alberiko (Autor de correspondencia)
    Revista: ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
    ISSN: 0944-1344 Vol.30 N° 50 2023 págs. 109585 -109605
    Resumen
    This article deals with the analysis of CO2 emissions in Latin America by using a long memory process based on fractional integration. Using data of CO2 emission and CO2 emissions per capita, for 32 Latin American and Caribbean countries, the results show significant differences according to the variable examined, the model used, and the country under examination. In particular, for the CO(2 )emissions, mean reversion is found in Belize and also under some circumstances in Antigua and Barbuda, Colombia, Dominica, Dominican Republic, Ecuador, Grenada, Honduras, Nicaragua, Panama, Peru, and Uruguay. Thus, shocks in these series have a transitory effect. With respect to the time trends, only for some Caribbean countries, namely, Antigua and Barbuda, Aruba, Bahamas, Cuba, and Jamaica, the trend is insignificant; on the other hand, large countries like Brazil, Mexico, and Argentina display the highest time trend coefficients; for the CO2 emissions per capita, there are eleven countries where mean reversion is detected, and there are ten that share a lack of significance for the trend. The most significant trends now take place in Trinidad and Tobago, British Virgin Islands, Barbados, and Guyana. Policy implications of the results obtained are reported at the end of the paper.
  • Autores: Kinateder, Markus; Merlino, L. P. (Autor de correspondencia)
    Revista: EUROPEAN ECONOMIC REVIEW
    ISSN: 0014-2921 Vol.152 2023 págs. 104378
    Resumen
    Players allocate their budgets to links, a local public good, and a private good. A player links in order to free ride on public good provided by others. We derive sufficient conditions for the existence of a Nash equilibrium, in which large contributors link to each other, while others link to them. If linking costs are sufficiently high, poorer players may contribute more and have more central positions in the network than richer ones do. In large societies, free riding reduces inequality only in networks in which it is initially low. Otherwise, richer players free ride more, as they can afford more links. Finally, we derive the policy implications for income redistribution.
  • Autores: Yaya, O. S.; Adesina, O. A.; Olayinka, H. A.; et al.
    Revista: ATMOSPHERE
    ISSN: 2073-4433 Vol.14 N° 8 2023 págs. 1299
    Resumen
    This paper deals with the analysis of the temperatures in a group of 36 African countries. By looking at the maximum, minimum and the range (the difference between the maximum and the minimum) and using a long memory model based on fractional integration and cointegration, we first show that all series display a long memory pattern, with a significant positive time trend in 29 countries for the maximum temperatures and in 33 for the minimum ones. Looking at the range, the estimated value for the order of integration is smaller than the one based on maximum or minimum temperatures in 17 countries. Performing fractional cointegration tests between the maximum and minimum temperatures, our results indicate that the two series cointegrate in the classical sense (i.e., with a short memory equilibrium relationship) in a group of 11 countries, and there is another group of eight countries displaying cointegration in the fractional sense. The remaining 17 countries with no evidence of cointegration are therefore at a very high risk of climate change due to the absence of long-term co-movement in their maximum and minimum temperatures. Findings in this paper are of tremendous interpretations and relevance for the analysis and climate projections in Africa.
  • Autores: Claudio-Quiroga, G. (Autor de correspondencia); Gil Alaña, Luis Alberiko; Maiza-Larrarte, A.
    Revista: RESOURCES POLICY
    ISSN: 0301-4207 Vol.82 2023 págs. 103433
    Resumen
    In this paper we examine price persistence in a set of minerals critical for the production of new energy vehicles. We implement techniques based on fractional integration also allowing for non-linearities and structural breaks at unknown periods of time. The results show that the series are generally very persistent, with orders of integration equal to or higher than 1 in practically all cases. The only exceptions being cobalt, tin and zinc if breaks are permitted and only for a given subsample. These findings are extremely relevant to initiate a discussion about the challenges that the new energy vehicle industry faces in China. China's government has already enforced some relevant initiatives to stabilise prices, but we conclude that additional measures will be necessary considering the high degree of uncertainty of certain supply-demand factors.
  • Autores: Caporale, G. M.; Infante, J.; del Rio, M.; et al.
    Revista: POPULATION RESEARCH AND POLICY REVIEW
    ISSN: 0167-5923 Vol.42 N° 4 2023 págs. 66
    Resumen
    This paper provides estimates of persistence in historical UK data on life expectancy applying fractional integration methods to both an annual series from 1842 to 2019 and a 5-year average from 1543 to 2019. This method is the most appropriate for our purposes since it is more general and flexible than the classical methods based on integer differentiation. The results indicate that the former exhibits an upward trend and is persistent but mean reverting; the same holds for the latter, though its degree of persistence is higher. Similar results are obtained for the logged values. On the whole, this evidence suggests that the effects of shocks to the series are transitory though persistent, which is useful information for policy makers whose task is to take appropriate measures to increase life expectancy.
  • Autores: Gyamerah, S. A.; Gil Alaña, Luis Alberiko (Autor de correspondencia)
    Revista: HELIYON
    ISSN: 2405-8440 Vol.9 N° 1 2023 págs. e12858
    Resumen
    The vector error correction model is used to examine the short-and long-run impacts of electricity consumption and economic growth on CO2 emissions in Western and Central Africa from 1970 to 2020. This paper adopted time series vector error correction model (VECM) approach to conduct stationarity test, cointegration test, stability test, and Granger causality test. Cointegration tests are used to examine the long-run impact of electricity consumption and economic growth on CO2 emissions. It was revealed that CO2 emission, electricity consumption and economic growth are co-integrated. Electricity consumption and economic growth have a significant and positive effect on CO2 emission. The study also revealed that the adjustment process is not driven by electricity consumption, and anytime there is a deviation from the long-run equilibrium, economic growth and CO2 emission adjust to restore the long-run equilibrium. From the short-run Granger cau-sality, electricity consumption and economic growth do not Granger cause CO2 emissions. However, past values of CO2 emissions have an effect on the present value of economic growth. Generally, long-run dynamics of electricity consumption and economic growth were established to have a greater impact on CO2 emission than the short-run dynamics. Hence, it is important to promote green economic concepts in the area.
  • Autores: Monge, M. (Autor de correspondencia); Rojo, M. F. R.; Gil Alaña, Luis Alberiko
    Revista: WATER RESOURCES AND ECONOMICS
    ISSN: 2212-4284 Vol.44 2023 págs. 100232
    Resumen
    The impact of COVID-19 on water-related equity indices is analyzed in this paper for different regions around the world by using fractionally integrated methods and an artificial neural network model. Using fractional integration, a lack of mean reversion is observed in all cases except in the USA, which means that, for these regions, a change in the trend will be permanent after COVID-19 unless additional measures are implemented. At the same time, a structural break is observed in all cases between the 4th and March 10, 2020, likely due to the drastic lockdown imposed in many if not most countries. Long memory was tested for the post-break period and mean reversion was found not only in North America but also in Europe. Moreover, the results were strongly aligned with those obtained using the neural network model. This suggests that the water-related equity indices and associated levels of investments in water and related utilities have moved back to their pre-Covid-19 levels.
  • Autores: Caporale, G. M. (Autor de correspondencia); Gil Alaña, Luis Alberiko
    Revista: PLOS ONE
    ISSN: 1932-6203 Vol.18 N° 3 2023
    Resumen
    This paper investigates whether gold and silver can be considered safe havens by examining their long-run linkages with 13 stock price indices. More specifically, the stochastic properties of the differential between gold/silver prices and 13 stock indices are analysed applying fractional integration/cointegration methods to daily data, first for a sample from January 2010 until December 2019, then for one from January 2020 until June 2022 which includes the Covid-19 pandemic. The results can be summarised as follows. In the case of the pre-Covid-19 sample ending in December 2019, mean reversion is found for the gold price differential only vis-a-vis a single stock index (SP500). whilst in seven other cases, although the estimated value of d is below 1, the value 1 is inside the confidence interval and thus the unit root null hypothesis cannot be rejected. In the remaining cases the estimated values of d are significantly higher than 1. As for the silver differential, the upper bound is 1 only in two cases, whilst in the others mean reversion does not occur. Thus, the evidence is mixed on whether these precious metals can be seen as safe havens, though it appears that this property characterises gold in a slightly higher number of cases. By contrast, when using the sample starting in January 2020, the evidence in favour of gold and silver as possible safe havens is pretty conclusive since mean reversion is only found in a single case, namely that of the gold differential vis-a-vis the New Zealand stock index.
  • Autores: Caporale, G. M.; Gil Alaña, Luis Alberiko (Autor de correspondencia); Abakah, E. J. A.
    Revista: APPLIED ECONOMICS
    ISSN: 0003-6846 Vol.55 N° 3 2023 págs. 283 - 292
    Resumen
    This paper uses fractional integration to assess the impact of US policy responses to the COVID-19 pandemic on 10 US sectoral stock indices from 1 January 2020 to 11 June 2021. The results provide evidence of mean reversion in most cases and suggest that the Effective Federal Funds Rate and monetary and fiscal announcements are the most effective policy tools.
  • Autores: Abakah, E. J. A.; Tiwari, A. K.; Arthur, E. K.; et al.
    Revista: APPLIED ECONOMICS
    ISSN: 0003-6846 Vol.55 N° 29 2023 págs. 3404 - 3421
    Resumen
    We contribute to the literature by studying the impact of economic policy uncertainty shocks on returns in the global art market, the global paintings market and the U.S.A art market from 1998:Q1 to 2018:Q3. Based on the frequency domain Granger causality test and continuous wavelets analysis, the results show that an increase in policy uncertainty shocks significantly reduces returns on art and paintings and that the effect is stronger during extreme volatility periods. Policy implications are derived at the end of the article.
  • Autores: Gil Alaña, Luis Alberiko; Adebola Solarin, S. (Autor de correspondencia); Balcilar, M.; et al.
    Revista: EMPIRICAL ECONOMICS
    ISSN: 0377-7332 Vol.64 N° 3 2023 págs. 1219 - 1246
    Resumen
    The degree of persistence of the real gross domestic product per capita, total factor productivity and labour productivity has been examined in a group of 23 developed and developing nations, as well as the overall Euro Area, by evaluating the order of integration of the macroeconomic series over the annual period from 1890 to 2019. As against the conventional use of using integer degrees of differentiation (i.e. 0 for stationary processes and 1 in case of unit roots), fractional values have been utilized. The empirical findings provide evidence for mean reversion in both total factor productivity and the real gross domestic product per capita in Chile, Germany, the Netherlands and New Zealand. The results further suggest that mean reversion only occurs in labour productivity of Australia. The non-linearity analysis shows that non-linearity is also present in the majority of the series. The policy implications of the results are enumerated in the body of the paper.
  • Autores: Infante, J.; del Rio, M.; Gil Alaña, Luis Alberiko
    Revista: SOCIAL INDICATORS RESEARCH
    ISSN: 0303-8300 Vol.167 N° 1 - 3 2023 págs. 175 - 182
    Resumen
    An analysis of the SPDR SSGA Gender Diversity Index ETF using fractional integration or I(d) techniques and daily data from 8 March 2016 to 8 January 2021, reveals that the series is highly persistent with an order of integration smaller than, though very close to 1. However, when estimating d recursively across subsamples, two peaks can be observed. The first peak appears in the sample with 679 observations (ending at 26 December 2018) and the second one occurs in the sample with 974 observations and ending at 28 February 2020, which shows the most significant change in d, moving from values within the I(1) interval to values significantly above 1. The findings indicate that the Covid-19 pandemic has had a significant impact on the persistence of the SPDR SSGA Gender Diversity Index ETF, increasing its magnitude and thus the level of persistence.
  • Autores: Bermejo, L.; Gil Alaña, Luis Alberiko (Autor de correspondencia); Del Rio, M.
    Revista: ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
    ISSN: 0944-1344 Vol.30 N° 3 2023 págs. 5603 - 5620
    Resumen
    The degree of persistence in daily data for PM2.5 in 20 relevant megacities such as Bangkok, Beijing, Mumbai, Calcutta, Canton, Dhaka, Delhi, Jakarta, London, Los Angeles, Mexico City, Moscow, New York, Osaka. Paris, Sao Paulo, Seoul, Shanghai, Tientsin, and Tokyo is examined in this work. The analysis developed is based on fractional integration techniques. Specifically, the differentiation parameter is used to measure the degree of persistence in the series under study, which collects data on daily measurements carried out from January 1, 2018, to December 31, 2020. The results obtained show that the estimated values for the differentiation parameter are restricted to the interval (0, 1) in all cases, which allows us to conclude that there is a mean reverting pattern and, therefore, transitory effects of shocks.
  • Autores: Monge, M. (Autor de correspondencia); Romero-Rojo, M. F.; Gil Alaña, Luis Alberiko
    Revista: ENERGY
    ISSN: 0360-5442 Vol.269 2023 págs. 126779
    Resumen
    The impact of geopolitical risk on energy markets has drawn attention to the need for better statistical modeling, especially of the crude oil markets and the shipping industry. In this work, the West Texas Intermediate crude oil price and the Baltic Dry Index behavior under the assumption of geopolitical risks are examined by using monthly data from January 1985 until May 2021. Using fractional integration methods, the results indicate that geopolitical risk and the Baltic Dry Index series will return to their original trends in the event of an exogenous shock, in contrast to the West Texas Intermediate behavior. These results are supported by analyzing the long-term relationship of the time series using the Fractional Cointegration Vector AutoRegressive approach. Finally, we use Bai and Perron (2003) and wavelet transform approaches to detect breaks in the prices paid for the maritime transport and for the crude oil prices caused by geopolitical risks.
  • Autores: Caporale, G. M.; Gil Alaña, Luis Alberiko (Autor de correspondencia)
    Revista: INTERNATIONAL ADVANCES IN ECONOMIC RESEARCH
    ISSN: 1083-0898 Vol.29 N° 1 - 2 2023 págs. 79 - 90
    Resumen
    This paper uses fractional integration methods to examine persistence, trends and structural breaks in United States house prices, more specifically the monthly Federal Housing Finance Agency House Price Index for census divisions, and the United States as a whole over the period from January 1991 to August 2022. The full sample estimates imply that the order of integration of the series is above one in all cases, and is particularly high for the aggregate series, implying high levels of persistence. However, when the possibility of structural breaks is taken into account, segmented trends are detected. The subsample estimates of the fractional differencing parameter tend to be lower, with mean reversion occurring in a number of cases. This means that shocks in the series are expected to be transitory in these subsamples, disappearing in the long run by themselves. In addition, the time trend coefficient is at its highest in the last subsample, which in most cases starts around May 2020 coincident with the beginning of the coronavirus pandemic. The results provide clear evidence of differences between census divisions, which implies that appropriate housing policies should be designed at the local (rather than at the federal) level.
  • Autores: Bermejo, L.; Malmierca-Ordoqui, M. (Autor de correspondencia); Gil Alaña, Luis Alberiko
    Revista: APPLIED ECONOMICS
    ISSN: 0003-6846 Vol.55 N° 39 2023 págs. 4511 - 4521
    Resumen
    This paper examines the degree of persistence in monthly unemployment rates for a group of 24 European countries along with the global rate for the Euro area, the European Union, the G7 and the OECD countries. For this purpose, fractionally integrated methods are employed. Using data from January 2010 to November 2020, our results indicate that fractional integration is present in all countries examined, with the orders of integration of the series ranging in the (0, 1) interval. Comparing the data before COVID-19 with those including it, the significant time trend coefficient and the mean reverting property disappear in most cases when COVID-19 data are considered. This implies that governments should consider that, after the pandemic, shocks on the labour market will have permanent effects. Thus, policies should address unemployment accordingly. Our work, however, does not focus on the analysis of nonlinearities, what could provide a more complete understanding of the series behaviour.
  • Autores: Gamboa, L. F.; Millán Quijano, Jaime Augusto (Autor de correspondencia)
    Revista: ECONOMICS OF EDUCATION REVIEW
    ISSN: 0272-7757 Vol.95 2023 págs. 102433
    Resumen
    This paper provides evidence of the importance of liquidity constraints in a tuition-free post-secondary education setting in Colombia. We exploit exogenous variation in the relative cost of tuition-free vocational education from a nationwide cash transfer program. We show that eligibility for a USD 136 grant every other month increases enrollment by up to 12 percentage points. We also show that men with larger returns to education are more affected by the availability of grants, which is consistent with the presence of liquidity constraints. However, we do not find the same for women. This paper highlights the importance of non-tuition costs and discusses whether individuals under-invest in their human capital when free education is available.
  • Autores: Lopez, G.; Gil Alaña, Luis Alberiko (Autor de correspondencia)
    Revista: PLOS ONE
    ISSN: 1932-6203 Vol.18 N° 2 2023 págs. e0281906
    Resumen
    In this paper, the sales of vehicles in the US are examined to understand if the shock caused by the current COVID-19 pandemic has had permanent or transitory effects on its subsequent evolution. Using monthly data from January 1976 until April 2021 and fractional integration methods, our results indicate that the series reverts and the shocks tend to disappear in the long run, even when they appear to be long lived. The results also indicate that the COVID-19 pandemic has not increased the degree of persistence of the series but, unexpectedly, has slightly reduced its dependence. Thus, shocks are transitory, long lived but, as time goes by, the recovery seems to be faster, which is possibly a sign of the strength of the industry.
  • Autores: Claudio-Quiroga, G. (Autor de correspondencia); Gil Alaña, Luis Alberiko; Maiza, A.
    Revista: APPLIED ECONOMICS
    ISSN: 0003-6846 Vol.55 N° 30 2023 págs. 3498 - 3513
    Resumen
    In this article, we investigate the statistical features of the CO2 emissions and CO2 emissions per capita in a group of 45 African countries by looking at their degree of persistence and also testing for the existence of trends in the data. In addition, we also investigate if this level of emissions is related to the Chinese FDI in Africa. The results are very heterogeneous across countries, observing orders of integration statistically below 1 in a group of countries; in others, the majority of them, the values are around 1, while for some others, the degree of integration is statistically significantly above 1. Linear time trends are observed in approximately half of the countries. These results imply that, in the long term, public measures to reduce CO2 emissions may be required in the majority of the countries since in the event of shocks the series will not return by themselves to their original levels. If we look at Chinese FDI in these countries, we observe that there seems to be no relationship between the Chinese investment in Africa and the CO2 emission persistence, though this result needs to be contrasted in future research.
  • Autores: Ayestaran, R.; Infante, J.; Tenorio, J. J.; et al.
    Revista: MATHEMATICS
    ISSN: 2227-7390 Vol.11 N° 10 2023 págs. 2365
    Resumen
    This paper deals with the analysis of the persistence in the Harmonized Indices of Consumer Prices in France, Germany, Italy, and Spain. The degree of persistence is measured through fractional integration or I (d) techniques, using monthly data from January 2010 to February 2023. We first conducted the analysis with data ending in December 2019, that is, with data prior to the COVID-19 pandemic. Then, we extended the sample, first up to December 2021 and finally to February 2023. Our results show that the findings of our series are highly persistent, with values of the differencing parameter about one or higher than one in the majority of cases. In fact, mean reversion is only observed in the case of Germany with pre-pandemic data. Generally, we observed an increase in the degree of persistence of the series as a consequence of both the COVID-19 pandemic and the Russia-Ukraine war, with the only exception being Spain, where we observe a reduction in the order of integration when including 2022-2023 data.
  • Autores: Caporale, G. M.; Gil Alaña, Luis Alberiko; Imeri, A. (Autor de correspondencia)
    Revista: COGENT ECONOMICS & FINANCE
    ISSN: 2332-2039 Vol.11 N° 2 2023 págs. 2280349
    Resumen
    This paper examines tourism persistence in a group of Southeastern European (SEE) countries (Albania, Bosnia, Bulgaria, Croatia, Montenegro, North Macedonia, Serbia and Slovenia) by applying fractional integration methods to monthly data on foreign tourist arrivals and overnight stays. The results indicate that the COVID-19 pandemic has increased the degree of persistence of these series as measured by the fractional differencing parameter; specifically, it has removed the mean reversion property in some countries. In addition, it has reduced the importance of the seasonal component.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia); Puertolas-Montanes, F.
    Revista: JOURNAL OF ECONOMICS AND FINANCE
    ISSN: 1055-0925 Vol.47 N° 2 2023 págs. 458 - 471
    Resumen
    This paper deals with the analysis of the statistical properties of the profitability yielded by Private Equity from a fractionally integrated viewpoint. Using quarterly data from 1981q2 to 2021q3, the results support the hypothesis of stationarity and mean reversion in all cases; however, we observe differences in the degree of persistence across regions, Europe being the closest to short memory while the US shows the highest degree of long range dependence and thus the longer lasting effects of shocks. Some policy recommendations of the results obtained are included at the end of the manuscript.
  • Autores: Martin-Valmayor, M. A.; Gil Alaña, Luis Alberiko (Autor de correspondencia); Infante, J.
    Revista: RESOURCES POLICY
    ISSN: 0301-4207 Vol.82 2023 págs. 103546
    Resumen
    This paper deals with the behavior of energy price changes and how their shocks exert an impact on suppliers and consumers in different markets. For this purpose, a fractional integration model is used to evaluate the persistence and mean reversion in prices across the major European markets (Germany, France, Italy, UK, Spain). We compare the results with other major players as the US and Japan, to understand, first, if the European behavior is different, and second, if geopolitical shocks that are affecting this market are expected to be permanent. Empirical results show evidence of mean reversion properties in European prices, though some minor differences arise from market to market that apparently, are not associated with the energy generation strategies followed by each country. Thus, it will likely be expected following the current energy shocks the series will recover due to natural market forces, without the need for additional policies.
  • Autores: Dettoni, R. (Autor de correspondencia); Gil Alaña, Luis Alberiko
    Revista: FINANCE RESEARCH LETTERS
    ISSN: 1544-6123 Vol.58 N° D 2023 págs. 104642
    Resumen
    The aim of this work is to test for duration dependence to examine rational speculative behaviour in the US housing market. Unlike other works that also test for duration dependence in stock markets, we use the Home Price Index, in a fractionally integrated model to calculate the runs of abnormal returns, and a flexible non-parametric model to estimate the hazard function of these runs. After applying the models, we conclude that the condition is not fulfilled in the US housing market. To the best of our knowledge, it is the first time that a combination of fractional integration along with a modern non-parametric duration model is applied to test for rational speculative bubbles in the US housing market.
  • Autores: Payne, J. E. (Autor de correspondencia); Gil Alaña, Luis Alberiko; Mervar, A.; et al.
    Revista: TOURISM ECONOMICS
    ISSN: 1354-8166 Vol.26 N° 6 2023 págs. 1679 - 1693
    Resumen
    This study examines the changes in the persistence and seasonality inherent in the Croatian tourism sector in light of the onset of the COVID-19 pandemic. First, we differentiate between the changes in the persistence and seasonal behavior with respect to domestic and foreign tourist arrivals and overnight stays. Second, with nearly 90% of the Croatian tourism sector tied to the seven counties along the Adriatic coast we investigate the differential regional impact on persistence and seasonal behavior. Our results indicate the disruption was much more prominent for foreign tourist arrivals and overnight stays relative to domestic tourist arrivals and overnight stays with respect to the increased persistence associated with the onset of the pandemic along with the seasonal autoregressive component reduced considerably.
  • Autores: Millán Quijano, Jaime Augusto
    Revista: DEFENCE AND PEACE ECONOMICS
    ISSN: 1024-2694 Vol.34 N° 1 2023 págs. 36 - 58
    Resumen
    Disarmament, Demobilization, and Reintegration (DDR) programs are known to be a necessary component to achieve sustainable peace after an armed conflict. The main goal of this type of program is to help the transition for former soldiers from war to a sustainable legal economic activity. However, due to weak institutions and poor design and implementation, such programs often result in many former soldiers ending up unemployed, in criminal activities, or returning to armed rebel groups. In this paper, I propose an optimal reintegration contract using tools from unemployment insurance literature. In this model, a principal (government) collects taxes from the community to fund a reintegration program that gives incentives to agents (insurgent soldiers) to leave war and search for a job. I describe how information asymmetries and the conditions of labor and crime markets shape the benefits scheme offered by the principal and the selection of insurgents who join the reintegration program.
  • Autores: Gil Alaña, Luis Alberiko; Infante, J.; Martín-Valmayor, M. A. (Autor de correspondencia)
    Revista: THE QUARTERLY REVIEW OF ECONOMICS AND FINANCE
    ISSN: 1062-9769 Vol.89 2023 págs. 347 - 357
    Resumen
    This paper investigates long memory, persistence and co-movements in the most representative stock markets from all over the world. We look at seven stock market indices from Europe, Asia and North America, first individually, by looking at the order of integration of the series from a fractional point of view and comparing different sampling periods (daily, weekly and monthly) for the time period 2009-2020. Then, co-movements across the series are examined by looking at the differences between them. The results indicate that all the individual series are highly persistent, with orders of integration close to 1 in most cases; evidence of a small degree of mean reversion is found in the two American indices (S & P500 and Dow Jones) and, generally, lower orders of integration are found at lower sampling frequencies. Focusing on the co-movements across the series, we observe a reduction in the degree of persistence in the one-by-one differential comparison of the series. Even though the differencing parameter is small compared with what we should have obtained under standard cointegration, this factor still shows long-memory as it ranges in the interval (0.5, 1) in the majority of cases; and appears to be greater when comparing markets from the same geographic region, showing evidence that the convergence process between the stocks is slower between markets of the same continents.& COPY; 2022 The Author(s). Published by Elsevier Inc. on behalf of Board of Trustees of the University of Illinois.This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
  • Autores: Coskun, Y.; Akinsomi, O.; Gil Alaña, Luis Alberiko (Autor de correspondencia); et al.
    Revista: HELIYON
    ISSN: 2405-8440 Vol.9 N° 4 2023 págs. e15084
    Resumen
    We examine stock market responses during the COVID-19 pandemic period using fractional integration techniques. The evidence suggests that stock markets generally follow a synchronized movement before and the stages of the pandemic shocks. We find while mean reversion significantly declines, the degree of persistence and dependence has been increased in the majority of the stock market indices in whole sample analysis covering the period of August 02, 2019 and July 09, 2020. This outcome implies increasing integration and possibly declining benefits of diversification for the global stock portfolio management.
  • Autores: Millán Quijano, Jaime Augusto (Autor de correspondencia); Pulgarin, S.
    Revista: WORLD DEVELOPMENT
    ISSN: 0305-750X Vol.162 2023 págs. 106130
    Resumen
    Widespread analysis of the link between natural resources and conflicts has shown how positive income shocks in agriculture usually reduce violence (opportunity cost effect), while positive shocks in extractive commodities intensify it (rapacity/lootability effect). However, recent works have found cases where pos-itive income shocks in agriculture lead to more violence. We examine the expansion of palm oil in Colombia to document another case where higher expected profits in agriculture led to more violence. Furthermore, we explore the institutional framework that explains the direction of this effect. Using a difference-in-difference strategy, we find that a 1 log point increase in palm oil prices raises the forced internal displacement rate in palm municipalities by 0.42 standard deviations. We show evidence sup-porting the hypothesis that the need for new lands explained the violence linked to the palm expansion within a framework in which weak property rights and illegal institutions were predominant. Likewise, we shed light on how the institutional framework shapes the relationship between income shocks and conflict.(c) 2022 The Author(s). Published by Elsevier Ltd. This is an open access Artículo under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
  • Autores: Solarin, S. A.; Gil Alaña, Luis Alberiko (Autor de correspondencia); González-Blanch, M. J.
    Revista: INTERNATIONAL JOURNAL OF FINANCE AND ECONOMICS
    ISSN: 1076-9307 Vol.28 N° 2 2023 págs. 1488 - 1496
    Resumen
    The motivation of this article is that despite the rising geopolitical events across the globe, several aspects of geopolitical risks have not been sufficiently explored in the literature including the persistence and dependence in the geopolitical risks. This article examines geopolitical risk in terms of time series persistence. In doing so, we are able to determine the nature of the shocks, which are either transitory or permanent depending on the integration order of the series. We examine 19 countries from January 1985 to February 2020. Our results show evidence of positive time trends in the cases of Mexico and Venezuela, and negative ones for South Africa and Argentina. These results are robust across seasonal and non-seasonal data and for different modelling assumptions for the error term. With respect to the degree of persistence, the different parameter is found to be in the range (0, 1) although we also observe heterogeneity across all countries.
  • Autores: Malmierca, M. (Autor de correspondencia); Gil Alaña, Luis Alberiko; Cuestas, J. C.
    Revista: JOURNAL OF ECONOMIC STUDIES
    ISSN: 0144-3585 Vol.50 N° 3 2023 págs. 448 - 463
    Resumen
    Purpose In particular, in this article, the authors investigate the degree of persistence in the credit-to-gross domestic product (GDP) ratio in 44 Organisation for Economic Co-operation and Development (OECD) economies in the context of nonlinear deterministic trends. Design/methodology/approach The authors use Chebyshev's polynomials in time, which allow us to model changes in the data in a smoother way than by structural breaks. Findings This study's results indicate that approximately one-quarter of the series display non-linear structures, and only Argentina displays a mean reverting pattern. Research limitations/implications Policy implications of the results obtained are discussed at the end of the manuscript. Originality/value The authors use an approach developed that allows for non-linear trends based on Chebyshev polynomials in time, with the residuals being fractionally integrated or integrated of order d, where d can be any real value.
  • Autores: Claudio-Quiroga, G. (Autor de correspondencia); Gil Alaña, Luis Alberiko; Gil-López, A.; et al.
    Revista: JOURNAL OF SUSTAINABLE TOURISM
    ISSN: 0966-9582 Vol.31 N° 8 2023 págs. 1818 - 1830
    Resumen
    This paper analyses how the COVID-19 pandemic has influenced employment in the Spanish tourism sector from a gender perspective and aims to infer its impact on sustainability. We use employment data from 2002 (Q1) to 2020 (Q4) on women and men in the Spanish hospitality sector and employ fractional integration methods to determine the temporary scope of the shock. Our results suggest that the impact of the pandemic will have a permanent effect, unless strong policy measures are adopted to resume pre-crisis trends. We also found that persistence is higher for women's than for men's employment. Therefore, women seem to be more vulnerable to the shocks of COVID-19, making sustainable development of tourism in Spain more difficult. Based on our results, we offer policy recommendations to counter the impact of the COVID-19 pandemic on gender equality and tourism sustainability.
  • Autores: Gil Alaña, Luis Alberiko; Martín-Valmayor, M. A. (Autor de correspondencia); Hube-Antoine, C.
    Revista: STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT
    ISSN: 1436-3240 Vol.37 N° 7 2023 págs. 2713 - 2724
    Resumen
    This paper deals with the study of stationarity and mean reversion in the temperature anomalies series in the southwestern American cone. In particular, monthly temperatures in 12 Chilean meteorological stations were studied (from the 1960's to nowadays), examining if temperature shocks are expected to remain in the long term or if they are reversible. The results clearly show a significant relationship between the latitude, climate, and the order of integration of the temperatures. The orders of integration tend to be smaller in colder southern parts, therefore impacts of climate change are expected to be more reversible. However, in northern desert areas the orders of integration are larger than 0.5, thus impacts are expected to be maintained for a longer time.
  • Autores: Bajo Buenestado, Raúl
    Revista: INTERNATIONAL JOURNAL OF ECONOMIC THEORY
    ISSN: 1742-7355 Vol.19 N° 2 2023 págs. 413 - 422
    Resumen
    It is well-known that, in a competitive market, the number of firms in a free-entry equilibrium is the efficient one. This paper shows that this textbook result breaks down if firms face demand uncertainty. In this case, entry is excessive relative to the optimum and, therefore, regulation improves market efficiency. This occurs because, in the absence of regulation, entry is motivated by the profits that firms expect to receive if market demand turns out to be high. However, when choosing the optimal regulated entry, the planner also considers that some surplus is lost if demand turns out to be low.
  • Autores: Malmierca-Ordoqui, M. (Autor de correspondencia); Gil Alaña, Luis Alberiko; Bermejo, L.
    Revista: EMPIRICA
    ISSN: 0340-8744 Vol.51 N° 1 2023 págs. 161 - 183
    Resumen
    The devastating effects of the financial and economic recessions within the last two decades have led researchers to question whether there is a connection between the public and private financial sectors that contributes to the rapid propagation of crisis. We analyze the fractional cointegrating structure between the private and public debt-to-GDP ratios for 17 European countries to examine the relevance of this relationship as an amplification channel of shocks. On the one hand, the univariate fractional integration approach reveals that shocks have permanent effects on financial variables in all the countries considered. On the other hand, we find that the number of countries for which private and public debt are cointegrated increase after the Great Recession.
  • Autores: Kinateder, Markus (Autor de correspondencia); Merlino, L. P. (Autor de correspondencia)
    Revista: GAMES AND ECONOMIC BEHAVIOR
    ISSN: 0899-8256 Vol.132 2022 págs. 316 - 327
    Resumen
    We introduce weighted links in a local public good game in an endogenous network with heterogeneous players. We find that the equilibrium predictions are sharper than when links are not weighted. In particular, active players form a complete core-periphery graph, where they are either in the core of interconnected players, or connected to every player in the core. Furthermore, a player's type is tightly related to her public good provision and her position in the network. (C) 2022 Elsevier Inc. All rights reserved.
  • Autores: Monge, M. (Autor de correspondencia); Gil Alaña, Luis Alberiko
    Revista: THEORETICAL AND APPLIED CLIMATOLOGY
    ISSN: 0177-798X Vol.148 N° 1-2 2022 págs. 481 - 489
    Resumen
    This paper deals with the relationship between the CO2 emissions and the global temperatures across the various pandemic episodes that have been taken place in the last 100 years. To carry out the analysis, first we conducted unit root tests finding evidence of nonstationary I(1) behavior, which means that a shift in time causes a change in the shape of distribution. However, due to the low statistical power of unit root tests, we also used a methodology based on long memory and fractional integration. Our results indicate that the emissions display very heterogeneous behavior in relation to the degree of persistence across pandemics. The temperatures are more homogeneous, finding values for the orders of integration of the series smaller than 1 in all cases, thus showing mean reverting behavior.
  • Autores: Caporale, G. M.; Gil Alaña, Luis Alberiko; Martín-Valmayor, M. A.
    Revista: APPLIED ECONOMICS LETTERS
    ISSN: 1350-4851 Vol.29 N° 4 2022 págs. 366 - 370
    Resumen
    This note examines the stochastic behaviour of US monthly 10-year government bond yields. Specifically, it estimates a fractional integration model suitable to capture both persistence and non-linearities, these being two important properties of interest rates. Two series are analysed, one from Bloomberg including end-of-the-month values over the period January 1962-August 2020, the other from the ECB reporting average monthly values over the period January 1900-August 2020. The estimation results indicate that both are highly persistent and exhibit non-linearities, the latter being more pronounced in the case of the ECB series. Also, there is no conclusive evidence of the presence of structural breaks.
  • Autores: Caporale, G. M. (Autor de correspondencia); Gil Alaña, Luis Alberiko; Trejo, P. V.
    Revista: HELIYON
    ISSN: 2405-8440 Vol.8 N° 2 2022 págs. e08898
    Resumen
    This paper investigates unemployment persistence in the 27 EU member states by applying fractional integration methods to quarterly data (both seasonally adjusted and unadjusted) from 2000q1 to 2020q4. The obtained evidence points to high levels of persistence in all cases. With seasonally adjusted data, a small degree of mean reversion is found in the case of Belgium, Luxembourg and Malta, but this evidence disappears under the assumption of weakly correlated disturbances. More cases of mean reversion are found instead when analysing the unadjusted series. In particular, countries such as Belgium, France, Croatia, Italy, Luxembourg and Malta display orders of integration significantly lower than 1. In addition, significant negative time trends are found in the case of Bulgaria, Croatia, Malta and Romania, and a positive one for Luxembourg. Finally, the Covid-19 pandemic had mixed effects, with (seasonal) persistence increasing in some countries whilst decreasing in others and not changing in a minority of cases. On the whole, our results support the hysteresis hypothesis for the European economies.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia); Font de Villanueva, C.
    Revista: JOURNAL OF AGRICULTURAL AND RESOURCE ECONOMICS
    ISSN: 1068-5502 Vol.47 N° 2 2022 págs. 262 - 277
    Resumen
    This paper deals with the analysis of world commodity prices by examining 15 categories ofcommodity prices using fractional integration and including thus fractional points. We use datacorresponding to the 1960-2018 period obtained from the World Bank, and the results indicatehigh degrees of persistence in the majority of the series, especially when using parametricmethods. However, mean reversion is obtained in many cases when using semiparametricapproaches. The possibility of structural breaks is also considered, and our results confirm thehigh degree of persistence in the data, which seems to have increased across time
  • Autores: Abakah, E. J. A.; Tiwari, A. K.; Alagidede, I. P.; et al.
    Revista: FINANCE RESEARCH LETTERS
    ISSN: 1544-6123 Vol.47 2022 págs. 102535
    Resumen
    This study re-examines the empirical relationship between risk and return from 1994m12 to 2020m08 in fifteen international equity markets employing the novel time-varying Markov switching copula models. We provide first-time insightful evidence of time-varying Markov tail dependence structure and dynamics between risk and return in international equity markets. Results show that the dependence structure is positive for USA, UK, Germany, Italy, Brazil, Australia, Taiwan, Canada, Mexico, Japan, France and South Africa and negative for Singapore, India, Japan and China. Finally, we document the effects of policy uncertainty, geopolitical risk and VIX conditional on different markets states.
  • Autores: Claudio-Quiroga, G. ; Gil Alaña, Luis Alberiko (Autor de correspondencia)
    Revista: ENERGY STRATEGY REVIEWS
    ISSN: 2211-467X Vol.43 2022 págs. 100924
    Resumen
    The main cause of climate change are carbon dioxide emissions. In the context of the COVID-19 pandemic, the number of emissions has been significantly reduced for the first time in many years. Now it is necessary to answer the question of whether CO2 emissions are stationary or not, because the results will let us know whether environmental policies have to be strengthened rather than relaxed in intensity. To this end, this paper in-vestigates the persistence in CO2 emissions in a group of countries to determine if shocks in the series have permanent or transitory effects. The results, based on fractional integration indicate evidence of mean reversion, with values of the differencing parameter constrained between 0 and 1 in all cases, independently of the assumption made about the error term (white noise or autocorrelation). Focusing on the areas under examina-tion, it is obtained that the EU27+UK, Japan and the US present the lowest degrees of integration, while Russia, China and India display the highest values. Decreasing time trends are only observed for the EU27+UK and US.
  • Autores: Abakah, E. J. A.; Caporale, G. M. (Autor de correspondencia); Gil Alaña, Luis Alberiko
    Revista: COGENT ECONOMICS & FINANCE
    ISSN: 2332-2039 Vol.10 N° 1 2022 págs. 2159736
    Resumen
    This paper assesses the impact of US policy responses to the Covid-19 pandemic on various technology-related assets such as cryptocurrencies, financial technology, and artificial intelligence stocks using fractional integration techniques. More precisely, it analyzes the behavior of the percentage returns in the case of nine major coins (Bitcoin-BITC, Stella-STEL, Litecoin-LITE, Ethereum-ETHE, XRP (Ripple), Dash, Monero-MONE, NEM, Tether-TETH) and two technology-related stock market indices (the KBW NASDAQ Technology Index-KFTX, and the NASDAQ Artificial Intelligence index-AI) over the period 1 January 2020-5 March 2021. The results suggest that fiscal measures such as debt relief and fiscal policy announcements had positive effects on the series examined during the pandemic, when an increased mortality rate tended instead to drive them down; by contrast, monetary measures and announcements appear to have had very little impact and the Covid-19 containment measures none at all.
  • Autores: Caporale, G. M. (Autor de correspondencia); Gil Alaña, Luis Alberiko; Poza, C.
    Revista: THE QUARTERLY REVIEW OF ECONOMICS AND FINANCE
    ISSN: 1062-9769 Vol.86 2022 págs. 118 - 123
    Resumen
    This paper analyses the possible effects of the Covid-19 pandemic on the degree of persistence of US monthly stock prices and bond yields using fractional integration techniques. The model is estimated first over the period January 1966-December 2020 and then a recursive approach is taken to examine whether or not persistence has changed during the following pandemic period (up to February 2021). We find that the unit root hypothesis cannot be rejected for stock prices while for bond yields the results differ depending on the maturity date and the specification of the error term. In general, bond yields appear to be more persistent, although there is evidence of mean reversion in case of 1-year yields under the assumption of autocorrelated errors. The recursive analysis shows no impact of the Covid-19 pandemic on the persistence of stock prices, whilst there is an increase in the case of both 10- and 1- year bond yields but not of their spread.(c) 2022 The Author(s). Published by Elsevier Inc. on behalf of Board of Trustees of the University of Illinois. CC_BY_4.0
  • Autores: Caporale, G. M. (Autor de correspondencia); Gil Alaña, Luis Alberiko; Trani, Tommaso
    Revista: INTERNATIONAL JOURNAL OF FINANCE AND ECONOMICS
    ISSN: 1076-9307 Vol.27 N° 1 2022 págs. 439 - 454
    Resumen
    This paper examines the degree of persistence in UK inflation by applying long-memory methods to historical data that span the period from 1660 to 2016. Specifically, we use both parametric and non-parametric fractional integration techniques, that are more general than those based on the classical I(0) vs. I(1) dichotomy. Further, we carry out break tests to detect any shifts in the degree of persistence, and also run rolling-window and recursive regressions to investigate its evolution over time. On the whole, the evidence suggests that the degree of persistence of UK inflation has been relatively stable following the Bretton Woods period, despite the adoption of different monetary regimes. The estimation of an unobserved¿components stochastic volatility model sheds further light on the issues of interest by showing that post¿Bretton Woods changes in UK inflation are attributable to a fall in the volatility of permanent shocks. The same type of analysis carried out for US inflation, for comparison purposes, leads to broadly similar conclusions.
  • Autores: Caporale, G. M.; Gil Alaña, Luis Alberiko; You, K. F.
    Revista: EMERGING MARKETS FINANCE AND TRADE
    ISSN: 1540-496X Vol.58 N° 5 2022 págs. 1502 - 1514
    Resumen
    This paper examines stock market integration between the five ASEAN countries and both the US and China in turn, over the period from November 2002 to August 2020. The linkages between both aggregate and financial sector stock indices (both weekly and monthly) are analyzed using fractional integration and fractional cointegration methods. Further, recursive cointegration analysis is carried out for the weekly series to study the impact of the 2007-8 global financial crisis and the 2015 China stock market crash on the pattern of stock market co-movement. The main findings are the following. All stock indices exhibit long-range dependence. There is cointegration between the five ASEAN countries and the US but almost none between the former and China, except between Indonesia and China in the case of the financial sector. The 2007-8 global financial crisis and the 2015 Chinese stock market plunge weakened the linkages between the ASEAN five and both China and the US. The implications of these results for market participants and policy makers are discussed.
  • Autores: Tiwari, A. K.; Abakah, E. J. A.; Karikari, N. K.; et al.
    Revista: THE NORTH AMERICAN JOURNAL OF ECONOMICS AND FINANCE
    ISSN: 1062-9408 Vol.62 2022 págs. 101735
    Resumen
    The outbreak of the novel corona virus has heightened concerns surrounding the adverse financial effects of the outbreak on stock market liquidity and economic policies. This paper contributes to the emerging strand of studies examining the adverse effects of the virus on varied aspect of global markets. The paper examines the causality and co-movements between COVID-19 and the aggregate stock market liquidity of China, Australia and the G7 countries (Canada, France, Italy, Japan, Germany, the UK and the US), using daily three liquidity proxies (Amihud, Spread and Traded Value) over the period December 2019 to July 2020. Our empirical analysis encompasses wavelet coherence and phase-differences as well as a linear Granger causality test. Linear cau-sality test results suggest that a causal relationship exists between the number of cases of COVID 19 infections and stock market liquidity. To quantitatively examine the degree of causality be-tween COVID-19 outbreak and stock market liquidity, we employ the continuous wavelet coherence approach with results revealing the unprecedented impact of COVID-19 on stock market liquidity during the low frequency bands for countries that were hard hit with the COVID-19 outbreak, i.e., Italy, Germany, France, the UK and the US. Further, evidence shows that there is a heterogeneous lead-lag nexus across scales for the entire period of the study.
  • Autores: Solarin, S. A. (Autor de correspondencia); López, G.; Gil Alaña, Luis Alberiko
    Revista: AUSTRALIAN ECONOMIC PAPERS
    ISSN: 0004-900X Vol.61 N° 4 2022 págs. 738 - 750
    Resumen
    This paper analyses the persistence of research intensity in the OECD over the period 1870-2018. The goal is to test if the conclusion of the study conducted by Ang and Madsen (Ang, J. B., & Madsen, J. B. (2011). Can second-generation endogenous growth models explain the productivity trends and knowledge production in the Asian miracle economies? The Review of Economics and Statistics 2011, 93(4), 1360-1373), namely that the Schumpeterian growth models predict that research intensity is stationary, is correct. Using fractional integration methods on annual research intensity from 16 OECD countries, we observe that the series are very persistent. The order of integration is observed to be statistically higher than 1 in all the countries except Spain, rejecting thus the hypothesis of stationarity. When the likelihood of non-linear trends is considered in the analysis, the results are not materially different. An implication of the results is that policies aimed at boosting research activities will have a long-term impact on research intensity.
  • Autores: Yucel, A. G.; Koksal, C. (Autor de correspondencia); Acar, S.; et al.
    Revista: APPLIED ECONOMICS
    ISSN: 0003-6846 Vol.54 N° 27 2022 págs. 3074 - 3087
    Resumen
    The aim of this paper is to analyze whether the profound effects of COVID-19 on Turkey's tourism sector will be permanent or transitory. Such an investigation deserves attention during the ongoing pandemic due to the importance of Turkey in the international tourism industry. To better understand and analyze the dynamics of tourism, we examine a long period of time spanning from January 1977 to March 2021 using a fractional integration approach. The findings provide clear-cut evidence that the shocks to the tourism sector display very low degrees of persistence in the pre-pandemic period whereas degrees of persistence in the post-pandemic period are very high. We also identify the changes in the persistence of tourism month by month. Overall, the impacts of COVID-19 on Turkey's tourism will not be transitory. Therefore, the government should be actively involved in the recovery process of the tourism sector if Turkey wants to reach the number of tourist arrivals it once used to host. Also, the methodology employed in this study could be used as a benchmark to explore the impacts of the ongoing pandemic on other sectors (JEL: C22: I15: L83: Z32).
  • Autores: Payne, J. E. (Autor de correspondencia); Gil Alaña, Luis Alberiko; Mervar, A.
    Revista: TOURISM ECONOMICS
    ISSN: 1354-8166 Vol.28 N° 6 2022 págs. 1676 - 1682
    Resumen
    This research note examines the change in the degree of persistence in the Croatian tourism indicators, foreign arrivals, and overnight stays, due to the COVID-19 pandemic using recursive estimation of a fractional integration model. The results indicate that the shock from the COVID-19 pandemic can be viewed as permanent in nature. The policy response to restore tourism to its original trend should consider whether such policies proceed as in the past with the promotion of the traditional tourism growth model or support the transformation toward a more sustainable tourism model.
  • Autores: Canarella, G.; Gil Alaña, Luis Alberiko; Gupta, R.; et al.
    Revista: EMPIRICAL ECONOMICS
    ISSN: 0377-7332 Vol.63 N° 5 2022 págs. 2331 - 2355
    Resumen
    This paper investigates whether the real interest rate parity (RIRP) is valid during the three waves of globalizations that occurred in the last 150 years (1870-1914, 1944-1971, 1989 to the present). If any, these periods should favor RIRP, since globalization is a process where economies and financial markets become increasingly integrated into a global economic system. In contrast to the existing literature, we model the departures from RIRP as a long-term memory process and apply fractional integration methods on a sample of real interest rate differentials of seven developed countries: France, Germany, Holland, Italy, Japan, Spain, and the UK across the three globalization waves paired against the USA. We compute impulse response functions (IRF) to gain further insight into the memory characteristics of the RIRP differential processes and provide half-life estimates. We find that deviations from RIRP are mean reverting, providing robust evidence of real interest rate convergence during the three globalization waves. We shed further light on financial and commodity market integration during the three globalization waves by assessing the memory properties of uncovered interest rate parity (UIP) and relative purchasing power parity (PPP) differential processes. We find that deviations from relative PPP and UIP are not always mean-reverting processes. RIRP, relative PPP, and UIP hold simultaneously only in 7 out of 21 cases; RIRP and UIP hold in 11 out of 21 cases; RIRP hold without the support of relative PPP and UIP in 3 out of 21 cases. Thus, the evidence in favor of real interest rate convergence appears to be driven more by UIP than relative PPP. All these results are, to the authors knowledge, new to the literature.
  • Autores: Caporale, G. M. (Autor de correspondencia); Gil Alaña, Luis Alberiko; Arrese-Lasaosa, I.
    Revista: HELIYON
    ISSN: 2405-8440 Vol.8 N° 11 2022 págs. e11560
    Resumen
    This paper analyses the impact of the Covid-19 pandemic on the degree of persistence of European stock markets. Specifically, it uses fractional integration methods to estimate persistence at the daily, weekly and monthly frequencies in the case of ten major European stock market indices; the effects of the pandemic are assessed by comparing the pre-pandemic estimates (over the period 2005-2019) to those from a sample extended until July 2021 which includes the pandemic period. The approach used is more general than the standard one based on the stationarity versus non-stationarity dichotomy and allows for a wider range of dynamic processes. Three different model specifications are considered, and these are estimated under two alternative assumptions for the disturbances (white noise and autocorrelation). The findings indicate that there has not been any significant impact of the Covid-19 pandemic on the degree of persistence of the European stock market indices, though their volatility persistence has decreased.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia); Gupta, R.; Sauci, L.; et al.
    Revista: THEORETICAL AND APPLIED CLIMATOLOGY
    ISSN: 0177-798X Vol.150 N° 3 - 4 2022 págs. 1731 - 1744
    Resumen
    This paper investigates the time series properties of the temperature and precipitation anomalies in the contiguous USA by using fractional differentiation. This methodology allows to capture time trend components along with properties such as long-range dependence and the degree of persistence. For aggregated data, we find out that long memory is present in both precipitation and temperature since the integration order is significantly positive in the two cases. The time trend is also positive, being higher for the temperature. In addition, observing disaggregated data by states, for the temperature, there are only seven states where the time trend is not significant, with most of them located in Southeast areas, while for the rest of cases, the time trend is significantly positive. All cases exhibit long-range dependence, though the differencing parameter substantially changes from one state to another, ranging from 0.09 in Nebraska and Kansas to 0.18 in Florida and Michigan. For precipitation, the time trend is insignificant in a large number of cases, and the integration order is smaller than for the temperature. In fact, short memory cannot be rejected in fourteen states, and the highest orders of differencing are obtained in Arizona (d = 0.11) and Texas (0.12). In general, we highlight that one cannot draw conclusions about persistence and trends in these two climate-related variables based on aggregate information of the overall USA, given widespread heterogeneity across the states. Tentatively, the degree of dependence across the states seems to be negatively correlated with their level of climate-related risks and the associated preparedness in terms of handling climate change, but this conclusion requires more elaborate research in the future.
  • Autores: Claudio-Quiroga, G. (Autor de correspondencia); Gil Alaña, Luis Alberiko; Maiza-Larrarte, A.
    Revista: EMERGING MARKETS FINANCE AND TRADE
    ISSN: 1540-496X Vol.58 N° 6 2022 págs. 1753 - 1770
    Resumen
    This paper deals with the relationship between Foreign Direct Investment from China in Africa and the growth level in five African countries. Based on the high degrees of persistence observed in the data, we use techniques based on long memory models, and our results indicate that of the five countries examined, namely Kenya, Zimbabwe, Zambia, Nigeria and South Africa, only for Nigeria do we find a significant positive relationship between the two variables though under some assumptions, this evidence is also found in the cases of Kenya and South Africa. Several arguments are put forward at the end of the article to justify these results.
  • Autores: Caporale, G. M.; Gil Alaña, Luis Alberiko (Autor de correspondencia); Sauci, L.
    Revista: INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH
    ISSN: 1735-6865 Vol.16 N° 3 2022 págs. 27
    Resumen
    This paper analyses US sea level data using long memory and fractional integration methods. Specifically, monthly data for 41 US stations covering the period from January 1950 to December 2018 are examined. Fractional integration methods suggest that all series exhibit orders of integration in the interval (0, 1), which implies long-range dependence with positive values of the differencing parameter; further, significant positive time trends are found in the case of 29 stations located on the East Coast and the Gulf of Mexico, and negative ones in the case of four stations on the North West Coast, but none for the remaining 8 on the West Coast. The highest degree of persistence is found for the West Coast stations and the lowest for the East Coast ones. Thus, in the event of shocks, more decisive action is required in the case of West Coast stations for the series to revert to their original trend.
  • Autores: Antunes, J.; Gil Alaña, Luis Alberiko; Riccardi, R.; et al.
    Revista: ANNALS OF OPERATIONS RESEARCH
    ISSN: 0254-5330 Vol.313 N° 1 2022 págs. 191 - 229
    Resumen
    In this paper, we analyze the temporal dependence in energy prices and demand using daily data of Portugal and Spain over the period 2007-2017. The methodology used is based on a stochastic Hidden Markov Model and the results indicate first that all significant relationships between energy prices and demands were found to be positive; second, spot prices are only time dependent on future prices and spot energy, while future energy is solely time dependent on spot energy behavior; third, future prices are not only autocorrelated but also time-dependent with spot energy and future energy demands level; and finally, spot energy is autocorrelated and time-dependent with future prices and future energy. Policy implications of the results obtained are presented at the end of the article.
  • Autores: Adebola Sakiru, S.; Gil Alaña, Luis Alberiko (Autor de correspondencia); González-Blanch, M. J.
    Revista: PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
    ISSN: 0378-4371 Vol.603 2022 págs. 127860
    Resumen
    This article investigates the statistical properties of the economic complexity data in a group of 29 OECD countries, testing for their degree of persistence by looking at the order of integration of the series from a fractional integration viewpoint. The results vary substantially depending on the assumptions made on the error term; in particular, mean reversion is only found in the case of Chile if the errors are uncorrelated; however, if autocorrelation is permitted, mean reversion is found in a group of ten countries, namely, Australia, Canada, Colombia, France, Greece, Ireland, Israel, Norway, New Zealand and South Korea. Robust estimation is conducted by means of non-parametric methods and non-linear structures, which are also incorporated in the model. Policy implications are derived at the end of the article.
  • Autores: Caporale, G. M. (Autor de correspondencia); Gil Alaña, Luis Alberiko; Plastun, A.; et al.
    Revista: JOURNAL OF ECONOMICS AND FINANCE
    ISSN: 1055-0925 Vol.46 N° 4 2022 págs. 678 - 703
    Resumen
    This paper uses R/S (Rescaled Range) analysis and fractional integration techniques to examine the persistence of two sets of 12 ESG (Environmental, Social and Governance) and conventional stock price indices from the MSCI ((Morgan Stanley Capital International) database over the period 2007-2020 for a large number of both developed and emerging markets. Both sets of results imply that there are no significant differences between the two types of indices in terms of the degree of persistence and its dynamic behaviour. However, higher persistence is found for the emerging markets examined (especially the BRICS, i.e. Brazil, Russia, India, China and South Africa), which suggests that they are less efficient and thus offer more opportunities for profitable trading strategies. Possible explanations for these findings include different type of companies' 'camouflage' and 'washing' (green, blue, pink, social, and Sustainable Development Goals-SDG) in the presence of rather lax regulations for ESG reporting.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia); Font, C.; Gil Lopez, A.
    Revista: JOURNAL OF ECONOMIC STUDIES
    ISSN: 0144-3585 Vol.49 N° 2 2022 págs. 379 - 393
    Resumen
    Purpose Using data from 1820 onwards in a group of seven countries, namely, Australia, Chile, Denmark, France, the UK, Italy and the USA, the authors investigate if there is a long-run equilibrium relationship between the two variables (GDP and population). Design/methodology/approach Using fractional integration and cointegration methods, this paper deals with the analysis of the relationship between GDP and population using historical data. Findings The authors' results show first that the two series are highly persistent, presenting orders of integration close to or above 1 in practically all cases. Testing cointegration between the two variables, the results are quite variable depending on the methodology and the bandwidth numbers used, but if cointegration takes places, it only occurs in the cases of France, Italy and the UK. Research limitations/implications The fact that the orders of integration of all series is close to 1 indicate high levels of persistence with shocks having permanent effects and requiring strong measures to recover the original trends. Practical implications Any shock affecting the series will have a permanent nature, persisting forever. Originality/value Updated time series techniques based on concepts such as fractional integration and cointegration are used.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia); Aikins Abakah, E. J.
    Revista: FINANCE RESEARCH LETTERS
    ISSN: 1544-6123 Vol.45 2022 págs. 102189
    Resumen
    This paper investigates the persistence in the US Treasury bond rate returns from 1946 to 2019 by using fractional integration. It is shown that the degree of integration of the series (and thus the level of persistence) reduces as we increase the time of the maturity rate from the 1-and 2-year rates to the 20-and 30-year bond rates.
  • Autores: Solarin, S. A.; Lafuente, C.; Gil Alaña, Luis Alberiko (Autor de correspondencia); et al.
    Revista: SOCIAL INDICATORS RESEARCH
    ISSN: 0303-8300 Vol.164 N° 2 2022 págs. 711 - 725
    Resumen
    This paper investigates inequality persistence in a group of 21 OECD countries using linear and non-linear fractionally integrated methods. Using linear models, the results show that the series are strongly persistent which implies lack of average reversal and permanency of shocks. Mean reversion is only found in the case of Finland and partial evidence of mean reversion is detected for Belgium, Greece, Austria and the Netherlands. The results are similar using non-linear methods. Mean reversion is only found in the case of Finland, Belgium, Greece and Spain. Although, most countries show no evidence of non-linear structures except for four countries, namely, Finland, Spain, the United Kingdom and the United States. The implications of the empirical findings are reported at the end of the manuscript.
  • Autores: Caporale, G. M. (Autor de correspondencia); Gil Alaña, Luis Alberiko
    Revista: BULLETIN OF ECONOMIC RESEARCH
    ISSN: 0307-3378 Vol.74 N° 1 2022 págs. 123 - 134
    Resumen
    This paper proposes a new modeling framework capturing both the long-run and the cyclical components of a time series. As an illustration, we apply it to four US macro series, namely, annual and quarterly real gross domestic product (GDP) and GDP per capita. The results indicate that the behavior of US GDP can be captured accurately by a model incorporating both stochastic trends and stochastic cycles that allows for some degree of persistence in the data. Both appear to be mean reverting, although the stochastic trend is nonstationary, while the cyclical component is stationary, with cycles repeating themselves every 6-10 years.
  • Autores: Bjornskov, C.; Borrella Mas, Miguel Angel; Rode, Martin Dieter (Autor de correspondencia)
    Revista: ECONOMICS & POLITICS
    ISSN: 0954-1985 Vol.34 N° 2 2022 págs. 275 - 29
    Resumen
    Consequences of social trust are comparatively well studied, while its societal determinants are often subject to debate. This paper studies both in the context of Catalan attempts to secede from Spain: First, we test whether Catalonia enjoys higher levels of social capital that it is prevented from capitalizing on. Second, the paper examines whether secessionist movements create animosity and political divisions within society that undermine trust. Employing the nine available waves of the European Social Survey for Spain, we only find weak indications that social trust levels are higher in Catalonia than in the rest of the country. Interestingly, we further find testimony of a purely transient "exuberance effect" after secession became a real option, indicating that the long-run evolution of social trust may best be thought of as a stable punctuated equilibrium.
  • Autores: Gil Alaña, Luis Alberiko; Payne, J. E. (Autor de correspondencia)
    Revista: TOURISM ECONOMICS
    ISSN: 1354-8166 Vol.28 N° 3 2022 págs. 654 - 660
    Resumen
    This research note examines data on US citizens' overseas air passenger travel with respect to the degree of persistence, seasonality, nonlinearities, and fractional integration. Based on seasonally differenced data with allowance for autocorrelated errors, we find evidence of nonlinearity with moderate persistence and mean reversion in US overseas air travel. The results suggest that shocks to US overseas air travel will dissipate over time, and as such, the observed persistence and nonlinearity can provide useful information in the modeling and forecasting of future behavior.
  • Autores: Adebola Solarin, S. (Autor de correspondencia); Bermejo, L.; Gil Alaña, Luis Alberiko
    Revista: AUSTRALASIAN JOURNAL OF ENVIRONMENTAL MANAGEMENT
    ISSN: 1448-6563 Vol.29 N° 4 2022 págs. 386 - 404
    Resumen
    Two features in time series data: the existence of time trends and the degree of persistence, are examined in this work on the nitrogen oxides emissions from 37 OECD countries. Updated techniques in time series are used that allow for fractional degrees of differentiation in the data. Thus, if the number of differences required is one, nitrogen oxides emissions are not mean reverting in the sense that if there is an exogenous shock (resulting from a technological advancement to change nitrogen oxides emissions), the effect of such shock on nitrogen oxides emissions will be permanent. Time trends are observed in half of the series. For these countries the trend coefficient is found to be positive in all cases. This is an indication that continuous technological progress is needed in taming NOx emissions. In addition to developing their own local technologies, less technologically endowed OECD countries should engage in collaboration with the more technologically endowed countries in order to facilitate increase in trans-border transfer of technology. The technologically advanced countries should also strive to continue to introduce better technologies in a bid to reduce NOx emissions. Most of the results show evidence for persistence of nitrogen oxides emissions.
  • Autores: Abakah, E.J.A. (Autor de correspondencia); Gil Alaña, Luis Alberiko; Tripathy, T.
    Revista: RESOURCES POLICY
    ISSN: 0301-4207 Vol.78 2022 págs. 102910
    Resumen
    This paper investigates the long memory properties of the prices series of two major precious metals (gold and silver) and six non-precious metals (aluminium, copper, lead, zinc, tin and nickel) by using a fractional integration modelling framework, while controlling for structural breaks and non-linearities. We use daily data in a range from November 01, 2007 to March 20, 2020. From the results, Copper and Tin exhibit a very small degree of mean reversion. However, if autocorrelation is permitted, the unit root null hypothesis cannot be rejected in any of the series. We also account for structural breaks and non-linearities. We observe that all the series under investigation are exposed to multiple breaks. Results obtained under white noise errors shows some evidence of mean reversion for silver aluminium, copper, tin and zinc in some of the subsamples. However, under the assumption of Bloomfield autocorrelated errors the confidence intervals are so wide that we cannot confirm this evidence in any single case.
  • Autores: Abakah, E. J. A.; Gil Alaña, Luis Alberiko (Autor de correspondencia); Arthur, E. K. ; et al.
    Revista: INTERNATIONAL REVIEW OF ECONOMICS AND FINANCE
    ISSN: 1059-0560 Vol.78 2022 págs. 141 - 152
    Resumen
    This paper examines volatility persistence in leverage loan market price series for Australia, Canada, Europe, Japan, Singapore, UK and USA in the presence of structural breaks. To the best of our knowledge, this is the first empirical study to examine volatility persistence in the leveraged loan markets. To this end, using fractional integration methods, the results indicate that both absolute and squared returns display long memory features, with orders of integration confirming the long memory hypothesis. However, after accounting for structural breaks, we find a reduction in the degree of persistence in the leveraged loan market. The evidence of persistence in volatility implies that market participants who want to make gains across trading scales need to factor the persistence properties of leveraged loan price series in their valuation and forecasting models since that will help improve long-term volatility market forecasts and optimal hedging decisions.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia); Poza, C.
    Revista: TOURISM ECONOMICS
    ISSN: 1354-8166 Vol.28 N° 3 2022 págs. 646 - 653
    Resumen
    We examine in this note the impact of COVID-19 on the Spanish tourism sector by using a strong dependence model. Daily data from five equity markets are used and we find that the coronavirus crisis has increased the persistence in the data, moving in some of the series from a mean reverting process to a non-mean reverting one. Thus, shocks that were expected to be transitory have become permanent, implying the need of strong policy measures to come the series back to their long-term projections.
  • Autores: del Río, M.; Infante, J.; Gil Alaña, Luis Alberiko (Autor de correspondencia)
    Revista: WATER POLICY
    ISSN: 1366-7017 Vol.24 N° 9 2022 págs. 1383 - 1393
    Resumen
    In this article, we carry out a study of the degree of persistence of a time series of data on freshwater use in the long term, using fractional integration or I(d) techniques. Using annual data from 1901 to 2014, we observe that the order of integration of the series is close to 1 if the errors are not correlated, and if they are correlated, then it is greater than 1. This shows that the series is highly persistent. On the other hand, we detect two structural breaks, one at 1951 and the other one at 1980. In these cases, we observe a reversion to the mean since the integration orders are much lower in the subsamples. This supports the hypothesis that when these breaks are not taken into account, there is an overestimation of the differentiation parameter, misspecifying the reversion to the mean of the data. The series also shows segmented trends with the higher time trend coefficient observed during the years 1951 and 1980.
  • Autores: Caporale, G. M.; Gil Alaña, Luis Alberiko; You, K. F.
    Revista: JOURNAL OF ECONOMIC INTEGRATION
    ISSN: 1225-651X Vol.36 N° 2 2021 págs. 185 - 202
    Resumen
    This paper investigates if financial markets in emerging Asia have become more globally or regionally integrated since the Asian financial crisis in the late 1990s. It employs a price-based measure of integration, namely, stock return differentials, between 10 emerging Asian economies and the United Stated (US) (as an indicator of global integration), as well as Japan and the Asian region (as two alternative indicators of regional integration), to test for mean reversion and draw inferences regarding financial integration. This paper makes a three-fold contribution to the literature. It uses not only aggregate but also industry-level data on stock returns, it examines the impact of the 2008 crisis, and it adopts a more general fractional integration approach. The evidence suggests that in emerging Asia, on both the aggregate and industry (especially for the financial sector) levels, there is more regional than global integration, and that the former became even stronger during the post-2008 crisis period. Furthermore, Japan's influence has been declining and the Chinese stock market has become more integrated, both regionally and globally.
  • Autores: Bajo Buenestado, Raúl (Autor de correspondencia)
    Revista: EMPIRICAL ECONOMICS
    ISSN: 0377-7332 Vol.61 N° 1 2021 págs. 443 - 467
    Resumen
    We study a game of spatial competition in prices. In particular, we focus on the linear-city duopoly model to see what we can learn about the distribution of consumers, which is not required to be uniform-as in the original Hotelling model. Using variation in firms' prices and costs, we identify points of the distribution of consumers. Based on these points, we estimate the spatial distribution of consumers along the linear city. We apply our methodology to a dataset of prices of two gas stations on a straight highway. By estimating the distribution of consumers, we are able to find the optimal location of an entrant gas station. Using our estimated distribution of consumers and the entrant's optimal point, we simulate welfare gains under counterfactual locations of an entrant.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia)
    Revista: FRONTIERS IN PHYSICS
    ISSN: 2296-424X Vol.9 2021 págs. 797402
    Resumen
    Global mean sea level data are examined in this work by looking at the presence of time trends in the context of long memory or long range dependent processes. By looking at both seasonal signals retained and seasonal signals removed data from 1992 to 2020, the results show that the two series display significant time trend coefficients and high levels of persistence.
  • Autores: Martin-Valmayor, M. A.; Gil Alaña, Luis Alberiko (Autor de correspondencia); Moreno, M. M.; et al.
    Revista: APPLIED ECONOMICS
    ISSN: 0003-6846 Vol.53 N° 13 2021 págs. 1572 - 1584
    Resumen
    In this paper we examine the statistical properties of the monetary aggregates in Chile in order to know if the time series display mean reverting behaviour. For this purpose, we use techniques based on fractional integration. Monthly data of various Chilean monetary aggregates from January 1986 until August 2019 are used, and the results indicate very weak evidence of mean reversion. In fact, this property is only found in the case of the currency on circulation and M1 for some of the series examined; however, for M2 and M3 the results clearly show high persistence with orders of integration substantially higher than 1. Thus, shocks are expected to have a permanent nature in these cases. Another remarkable feature observed in the results is that the level of persistence in the series seems to grow with the amount of the monetary aggregate. In a multivariate context, performing a FCVAR model, evidence of cointegration is found among the monetary aggregates, finding a long run equilibrium relationship between them.
  • Autores: Canarella, G. ; Gil Alaña, Luis Alberiko; Gupta, R.; et al.
    Revista: URBAN STUDIES
    ISSN: 0042-0980 Vol.58 N° 1 2021 págs. 53 - 72
    Resumen
    This paper provides a new and unique look at the dynamics and persistence of historical house prices in the USA and the UK using fractional integration techniques not previously applied to housing markets. Unlike previous research, we consider two components of persistence of house prices: the component associated with the long-run trend and the component associated with the cycle. We find evidence of cyclical and long-run persistence in the UK housing markets. In contrast, we fail to find evidence of cyclical persistence for the USA. For the sub-samples, which account for a structural break in each series, an important difference is the asynchronous pattern of the breaks, an indication of heterogeneity in the house price dynamics of the two countries and a sign that national rather than global events have played an important role. Although the house price movements of the last decade are dramatic, the greatest structural changes in the overall nominal and real price dynamics of the UK and the USA appear to have taken place much earlier, in the late 1970s and early 1980s in the UK and in the mid-1950s and early 1970s in the USA. An important result, common to the whole and sub-samples, is that long-run persistence plays a greater role than cyclical persistence in explaining the dynamics of house prices in both countries. These findings have substantial implications for policy decisions.
  • Autores: Solarin, S. A.; Gil Alaña, Luis Alberiko (Autor de correspondencia)
    Revista: PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
    ISSN: 0378-4371 Vol.568 2021 págs. 125698
    Resumen
    In the wake of the recent global financial crisis, Arab spring, serial crises in the Eurozone, and ongoing trade wars among the leading countries in the world, concerns about economic policy uncertainty have heightened. However, there are several aspects of economic policy uncertainty that have not been adequately researched including the persistence of the series. The examination of the persistence of economic policy uncertainty is important. For instance, the size of the uncertainty' persistence will determine how big the negative effect of an uncertainty shock is on the financial market as well as on the economy. This paper deals with the analysis of economic policy uncertainty for 23 countries, which include developed and developing ones. We focus on persistence by using fractional integration. This is a more general approach than the standard methods based on integer differentiation. The results indicate that the orders of integration are in the interval (0, 1) in all countries, implying long memory and mean reverting behaviour. Thus, shocks will have temporary though long lasting effects. Nevertheless, substantial differences are observed across the countries. (C) 2020 Elsevier B.V. All rights reserved.
  • Autores: Bajo Buenestado, Raúl
    Revista: ENERGY ECONOMICS
    ISSN: 0140-9883 Vol.94 2021 págs. 105067
    Resumen
    A number of countries in Sub-Saharan Africa have recently deployed billions of dollars to improve their electricity infrastructure. However, aggregate data shows that the relative number of households with an electricity connection at home has barely increased. In this paper we study the role of blackouts to partially explain why there have been relatively few additional households with electricity access despite the increase in electrification expenditure. Using geo-localized survey data from Kenya, we find that households that live in neighborhoods in which power outages are relatively more frequent are (at least) about 6¿9% less likely to have electricity at home. We also find that households that have electricity access but which experience frequent power outages are also less likely to purchase electrical appliances.
  • Autores: Lenti, J.; Gil Alaña, Luis Alberiko (Autor de correspondencia)
    Revista: INTERNATIONAL JOURNAL OF CLIMATOLOGY
    ISSN: 0899-8418 Vol.41 N° 9 2021 págs. 4619 - 4636
    Resumen
    This paper looks at the level of persistence in the temperature anomalies series of 114 European cities. Once this level of persistence has been identified, the time trend coefficients are estimated and the results indicate that most of the series examined display positive trends, supporting thus climate warming. Moreover, the results obtained confirm the hypothesis that long-memory behaviour cannot be neglected in the study of temperature time series, changing, therefore, the estimated effect of global warming.
  • Autores: Cristofaro, L.; Gil Alaña, Luis Alberiko; Chen, Z. F.; et al.
    Revista: FINANCE RESEARCH LETTERS
    ISSN: 1544-6123 Vol.41 2021 págs. 101865
    Resumen
    Global financial markets experienced distinct collapses during the global financial crisis in 2008 and the COVID-19 pandemic in 2020, and similarity in the underlying nature is still a hot topic to be investigated. This paper investigates their degree of persistence in order to detect whether the shocks affecting them have temporary or permanent effects by examining the closing prices of the Shanghai and Shenzhen Composite Indices from 1991 to 2020. The results before the coronavirus indicate large degrees of persistence with shocks having permanent effects, while during the coronavirus the results indicate a mean reversion with shocks having temporary effects.
  • Autores: Bermejo, L.; Gil Alaña, Luis Alberiko (Autor de correspondencia); del Rio, M.
    Revista: HELIYON
    ISSN: 2405-8440 Vol.7 N° 10 2021 págs. e08105
    Resumen
    The degree of persistence in daily PM25 and O-3 in the ten most populated US cities, namely New York, Los Angeles, Chicago, Houston, Phoenix, Philadelphia, San Antonio, San Diego, Dallas and San Jose is examined in this work. We employ a methodology based on fractional integration, using the order of integration as a measure of the degree of persistence. Using data for the time period from January 1, 2019 to December 31, 2020, our results indicate that fractional integration and long memory features are both present in all the examined cases, with the integration order of the series being constrained in the (0, 1) interval. Based on this, the estimation of the coefficients for the time trend produces results which are substantially different from those obtained under the I (0) assumption.
  • Autores: Barani, S. (Autor de correspondencia); Cristofaro, L.; Taroni, M.; et al.
    Revista: FRONTIERS IN EARTH SCIENCE
    ISSN: 2296-6463 Vol.9 2021 págs. 563649
    Resumen
    The present study aims at proving the existence of long memory (or long-range dependence) in the earthquake process through the analysis of time series of induced seismicity. Specifically, we apply alternative statistical techniques borrowed from econometrics to the seismic catalog of The Geysers geothermal field (California), the world's largest geothermal field. The choice of the study area is essentially guided by the completeness of the seismic catalog at smaller magnitudes (a drawback of conventional catalogs of natural seismicity). Contrary to previous studies, where the long-memory property was examined by using non-parametric approaches (e.g., rescaled range analysis), we assume a fractional integration model for which the degree of memory is defined by a real parameter d, which is related to the best known Hurst exponent. In particular, long-memory behavior is observed for d > 0. We estimate and test the value of d (i.e., the hypothesis of long memory) by applying parametric, semi-parametric, and non-parametric approaches to time series describing the daily number of earthquakes and the logarithm of the (total) seismic moment released per day. Attention is also paid to examining the sensitivity of the results to the uncertainty in the completeness magnitude of the catalog, and to investigating to what extent temporal fluctuations in seismic activity induced by injection operations affect the value of d. Temporal variations in the values of d are analyzed together with those of the b-value of the Gutenberg and Richter law. Our results indicate strong evidence of long memory, with d mostly constrained between 0 and 0.5. We observe that the value of d tends to decrease with increasing the magnitude completeness threshold, and therefore appears to be influenced by the number of information in the chain of intervening related events. Moreover, we find a moderate but significant negative correlation between d and the b-value. A negative, albeit weaker correlation is found between d and the fluid injection, as well as between d and the annual number of earthquakes.
  • Autores: Caporale, G. M. (Autor de correspondencia); Gil Alaña, Luis Alberiko; Martín-Valmayor, M.
    Revista: JOURNAL OF ECONOMICS AND FINANCE
    ISSN: 1055-0925 Vol.45 N° 3 2021 págs. 413 - 427
    Resumen
    This paper provides evidence on the degree of persistence of one of the key components of the CAPM, namely the market risk premium, as well as its volatility. The analysis applies fractional integration methods to data for the US, Germany and Japan, and for robustness purposes considers different time horizons (2, 5 and 10 years) and frequencies (monthly and weekly). The empirical findings in most cases imply that the market risk premium is a highly persistent variable which can be characterized as a random walk process, whilst its volatility is less persistent and exhibits stationary long-memory behaviour. There is also evidence that in the case of the US the degree of persistence has changed as a results of various events; this is confirmed by both endogenous break tests and the associated subsample estimates. Market participants should take this evidence into account when designing their investment strategies.
  • Autores: Adebola Solarin, S.; Gil Alaña, Luis Alberiko (Autor de correspondencia)
    Revista: ENVIRONMENTAL MODELING AND ASSESSMENT
    ISSN: 1420-2026 Vol.26 N° 4 2021 págs. 497 - 509
    Resumen
    Anthropogenic methane emission is the most important greenhouse gas, after CO2 emission. However, various aspects of methane emission have not been adequately examined in the existing literature including its persistence, methane emission, which is a measure of the extent to which short-term shocks (resulting from new government initiatives) are able to generate permanent future changes. It is important to determine the persistence of methane emissions. The existence of persistence of methane emissions implies that any temporary shock will have a permanent impact on methane emissions and the methane emission level will not move back to its steady long-term growth path. The persistence of the methane emissions in a group of 36 OECD countries has been examined in this work for the time period 1750-2014 using techniques based on fractional integration. This allows us to determine the degree of persistence of the series and the potential presence of trends in the data. Our results indicate that all series are highly persistent, with orders of integration above 1 in the majority of the cases. Linear (positive) trends are observed in approximately half of the cases. One of the implications of these findings is that policies designed for decreasing methane emissions will have a long-term impact in these countries. The methane emission policies include improvement in the equipment employed to generate, store and convey natural gas and oil; changing manure management policies; modifications to animal feeding strategies and introduction of emission controls that capture landfill methane.
  • Autores: Caporale, G. M. (Autor de correspondencia); Gil Alaña, Luis Alberiko; Malmierca, M.
    Revista: APPLIED ECONOMICS
    ISSN: 0003-6846 Vol.53 N° 43 2021 págs. 5018 - 5027
    Resumen
    This paper investigates the degree of persistence of the private debt-to-GDP ratio in 43 OECD countries by estimating the fractional integration parameter of each series. Almost all of them are found to be highly persistent, with orders of integration around or above 1. The only exception is Argentina, where the series appears to be mean-reverting. These results highlight the key importance of macroprudential policy as one of the pillars of macro policy.
  • Autores: Solarin, S. A.; Gil Alaña, Luis Alberiko (Autor de correspondencia); González-Blanch, M. J.
    Revista: INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH
    ISSN: 1735-6865 Vol.15 N° 4 2021 págs. 701 - 708
    Resumen
    In this paper, the degree of persistence of the sulfur dioxide emissions in a group of 37 OECD countries is examined by looking at the order of integration of the series. However, instead of using integer degrees of differentiation (i.e., 1 in case of unit roots and 0 for stationarity), fractional values are also considered. The results indicate high degrees of persistence and very little evidence of mean reversion. This property only holds for the three Latin American countries examined, namely Chile, Colombia and Mexico if the error follows a white noise process. If autocorrelation is permitted, however, the confidence intervals are wider and mean reversion is not found in any single case. Thus, shocks in the series are expected to be permanent in the majority of the cases examined.
  • Autores: Monge, M. (Autor de correspondencia); Cristóbal Santamaría, E.; Gil Alaña, Luis Alberiko
    Revista: REVIEW OF DEVELOPMENT FINANCE
    ISSN: 1879-9337 Vol.11 N° 1 2021 págs. 26 - 34
    Resumen
    Is lithium affecting business strategies in the sector? We employ methodologies based on Continuous Wavelet Transform (CWT) and fractional integration and cointegration vector autoregressive models (FCVAR) models to analyze how lithium prices influence mergers and acquisitions (M&A) in the lithium industry over the world. The univariate and the multivariate results obtained using long memory methods support the nonstationary nature of the data, but they seem to be linked in the long-term through a fractional cointegrated relationship. In addition, analysis in the time-frequency domain indicates that both series are highly correlated from 2015 to 2017, finding that the lithium prices explain the M&A behavior after mid-2016 until early 2017.
  • Autores: Caporale, G. M.; Gil Alaña, Luis Alberiko; Carmona-González, N.
    Revista: AIR QUALITY, ATMOSPHERE AND HEALTH
    ISSN: 1873-9318 N° 14 2021 págs. 1097 - 1102
    Resumen
    This paper examines the statistical properties of daily PM10 in eight European capitals (Amsterdam, Berlin, Brussels, Helsinki, London, Luxembourg, Madrid and Paris) over the period 2014-2020 by applying a fractional integration framework; this is more general than the standard approach based on the classical dichotomy between I(0) stationary and I(1) non-stationary series used in most other studies on air pollutants. All series are found to be characterised by long memory and fractional integration, with orders of integration in the range (0, 1), which implies that mean reversion occurs and shocks do not have permanent effects. Persistence is the highest in the case of Brussels, Amsterdam and London. The presence of negative trends in Brussels, Paris and Berlin indicates some degree of success in reducing pollution in these capitals.
  • Autores: Abakah, E. J. A.; Addo, E.; Gil Alaña, Luis Alberiko (Autor de correspondencia); et al.
    Revista: INTERNATIONAL REVIEW OF FINANCIAL ANALYSIS
    ISSN: 1057-5219 Vol.74 2021 págs. 101678
    Resumen
    The finance literature provides substantial evidence on the dependence between international bond markets across developed and emerging countries. Early works in this area were based on linear models and multivariate GARCH models. However, based on the limitations of these models this paper re-examines the non-linearity, multivariate and tail dependence structure between government bond markets of the US, UK, Japan, Germany, Canada, France, Italy, Australia and the Eurozone, from January 1970 to February 2019 using ARMA-GARCH based pair-copula models. We find that the bond markets in our sample tend to have both upper tail dependence in terms of positive shocks and lower tail dependence in terms of negative shocks. The estimated C-vine shows Eurozone has the highest average dependency. The D-vine, with optimal chain dependency structure shows the best order of connectedness to be the UK, the USA, Italy, Japan, Eurozone, France, Canada, Germany and Australia. The R-vine copula results underline the complex dynamics of bond market relations existing between the selected economies. The estimated R-vine shows Eurozone, Germany and Australia are the most inter-connected nodes. The multivariate distribution structure (interdependency) of bond markets for all countries were modelled with the C-vine, D-vine and R-vine copulas. In this application, the R-vine copula allows for detailed modelling of all bond markets and hence provides a more accurate goodness of fit and mean square error for the interdependency between all markets. In light of the changing volatility in bond markets, we conduct additional tests using time-varying copulas and find that the dependence structure among the bond markets examined is time-varying with the dynamic dependence parameter plots revealing that the nature of the dependence structure is intense during crisis periods.
  • Autores: Awe, O. O.; Gil Alaña, Luis Alberiko (Autor de correspondencia)
    Revista: TELLUS. SERIES A: DYNAMIC METEOROLOGY AND OCEANOGRAPHY (ONLINE)
    ISSN: 1600-0870 Vol.73 N° 1 2021 págs. 1 - 9
    Resumen
    This paper deals with the time series analysis of precipitation patterns in Africa's most populated nation using recently developed flexible modelling techniques to study the monthly precipitation data of some major economically viable and highly populated regions in Nigeria. The results indicate that there is a significant trend for Lagos rainfall data, implying that precipitations have systematically increased over time in this city. Additionally, the seasonal component is more prominent in the cases of Kano and Kaunda than for Ibadan and Lagos. The findings of this study have relevant policy implications for forecasting, agricultural planning, relating precipitation variability in Nigeria with standard climate drivers, as well as for disaster or risk reduction in the context of climate change, global warming and migration in the post-pandemic era.
  • Autores: Kinateder, Markus; Merlino, Luca
    Revista: GAMES
    ISSN: 2073-4336 Vol.12 N° 3 2021 págs. 55
    Resumen
    In this paper, we propose a game in which each player decides with whom to establish a costly connection and how much local public good is provided when benefits are shared among neighbors. We show that, when agents are homogeneous, Nash equilibrium networks are nested split graphs. Additionally, we show that the game is a potential game, even when we introduce heterogeneity along several dimensions. Using this result, we introduce stochastic best reply dynamics and show that this admits a unique and stationary steady state distribution expressed in terms of the potential function of the game. Hence, even if the set of Nash equilibria is potentially very large, the long run predictions are sharp.
  • Autores: Tiwari, A. K.; Abakah, E. J. A.; Gil Alaña, Luis Alberiko (Autor de correspondencia); et al.
    Revista: JOURNAL OF RISK AND FINANCIAL MANAGEMENT
    ISSN: 1911-8066 Vol.14 N° 12 2021
    Resumen
    The economic literature provides evidence that inflation rates can co-move across nations because of a host of reasons, ranging from low frequency changes in monetary policy to similar high frequency shocks. Hence, this paper investigates inflation rate co-movements between nine (9) African countries and their bilateral linkages with five (5) developed economies using continuous wavelets at different time scales or frequencies. Specifically, we examine the coherency and the phase relationship in time-frequency space in inflation rates of the selected countries. Several findings are documented. First, inflation rates co-movements in the nine African countries are time varying, multi-scale, and characterized by structural breaks. In addition, we find that inflation co-movements across countries in the Africa sub-region is weak at low frequencies. Furthermore, we find evidence of inflation co-movement between Africa and developed economies, suggesting that central banks and policy-makers in Africa need to monitor international price developments, and analyze their implications for their domestic economies. Second, we find that inflation rates in the selected African countries explain, on average, almost 80% of their own inflation variance over the whole sample period. Spillover analysis reveals that China and Canada account for a greater percentage of inflation variation in Africa.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia); Abakah, E. J. A. ; Abakah, M. K.
    Revista: REVIEW OF FINANCIAL ECONOMICS
    ISSN: 1058-3300 2021 págs. 146 - 162
    Resumen
    This paper uses fractional integration techniques to explore the stochastic properties of the Financial Stress Indices (FSIs) of 10 Asian countries, further investigating the bilateral linkages between them to ascertain how financial stress spreads among countries in the region. For the FSIs of each country, the results show that all the estimated orders of integration are in the interval (0, 1) implying fractional integration and a long memory pattern. Thus, shocks will have transitory though long-lasting effects. For the cross-country spillovers of the FSIs, we find that convergence is satisfied in all cases with values of the differencing parameter around 0 and thus showing short memory behavior. It is worth noting that for the larger economies in the region, Japan and China, financial stress transmission between Japan and the smaller economies was faster than with respect to China. Overall, the results provide valuable information on the financial market activity of the countries in the region. To check for the robustness of the baseline results we also use systemic risk measures for these countries, CoVaR with the results showing evidence of fractional integration for the individual series, with all values of the differencing parameter in the range (0, 1). For convergence, there is a substantial reduction in the degree of integration, though the results are not as clear as with the FSIs.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia); Gil-Lopez, A. ; San Roman, E.
    Revista: TOURISM ECONOMICS
    ISSN: 1354-8166 Vol.27 N° 4 2021 págs. 614 - 625
    Resumen
    In this article, we examine the statistical properties of the time series corresponding to the number of national and international visitors in Spain using fractional integration. This methodology allows us to examine the degree of persistence of the series, and thus, infer some conclusions about the nature of the shocks. According to the results reported in this work, seasonality matters in both cases, being more important in international tourism. Moreover, we observe significant differences in the degree of persistence between national and international tourism. Although both series seem to be mean reverting, with shocks having a transitory nature, higher orders of integration are observed in the case of the international arrivals.
  • Autores: Skare, M.; Gil Alaña, Luis Alberiko; Claudio-Quiroga, G.; et al.
    Revista: OECONOMIA COPERNICANA
    ISSN: 2083-1277 Vol.12 N° 4 2021 págs. 863 - 888
    Resumen
    Research background: China's economic growth, however remarkable, is due to the Harrod-Domar nature of economic growth and, therefore, limited. The main limitation lies in the extension of the neoclassical growth model and the government need to decrease regional disparities using new migration, urbanization and social policy. Purpose of the article: It is the rising regional disparity in the total factor productivity to cause the income inequality increase (measured by GINI index) in China from 1952-2017. Our paper brings new insight into the main inequality determinants and causes in China, using a fractional integration modeling framework. Methods: Using fractional integration, we find total factor productivity (TFP), real gross domestic product per capita and growth and expenditures for the social safety net and employment effort to have a statistically significant impact on GINI. Income inequality in China is of a persistent nature with the effects of the shocks affecting the GINI index enduring over time. Findings & value added: The results of this study highlight the importance for model/policy changes by the policy makers and practitioners in China to deal with the inequality issue. This involves improving the growth model through innovation and technological advancement, relaxing TFP dependence on the physical inputs (labor and capital) to reduce income inequality.
  • Autores: Solarin, S. A.; Gil Alaña, Luis Alberiko (Autor de correspondencia); Gonzalez-Blanch, M. J.
    Revista: SOCIAL INDICATORS RESEARCH
    ISSN: 0303-8300 Vol.155 2021 págs. 563 - 581
    Resumen
    This paper examines income poverty in Africa by looking at the time series properties of the series corresponding to the household consumer expenditures in 53 African countries. Using fractional integration the results indicate that the series are highly persistent, displaying orders of integration in the interval (0, 1) in some countries or values equal to or higher than 1 in some others. The main implication of the empirical findings is that long term policies aimed at addressing income poverty in the continent such as the policies on expansion of infrastructure and social amenities will have have long-lasting effects on poverty reduction.
  • Autores: Antonakakis, N.; Christou, C. (Autor de correspondencia); Gil Alaña, Luis Alberiko; et al.
    Revista: INTERNATIONAL ECONOMICS
    ISSN: 2110-7017 Vol.167 2021 págs. 29 - 38
    Resumen
    Existing empirical evidence on the effect of inflation-targeting on inflation volatility is, at best, mixed. However, comparing inflation volatility across alternative monetary policy regimes, i.e., pre- and post-inflation-targeting, begs the question. The question is not whether the volatility of inflation has changed, but instead whether the volatility is different than it otherwise would have been. Given this, our paper uses the cosine-squared cepstrum to provide overwhelming international evidence that inflation targeting has indeed reduced inflation volatility in 22 out of the 24 countries considered in our sample of established inflation-targeters, than it would have been the case if the central banks in these countries did not decide to set a target for inflation.
  • Autores: Caporale, G. M. (Autor de correspondencia); Claudio-Quiroga, G.; Gil Alaña, Luis Alberiko
    Revista: JOURNAL OF INNOVATION AND ENTREPRENEURSHIP
    ISSN: 2192-5372 Vol.10 N° 1 2021 págs. 32
    Resumen
    This paper examines the relationship between the logarithms of carbon dioxide (CO2) emissions and real Gross Domestic Product (GDP) in China by applying fractional integration and cointegration methods. These are more general than the standard methods based on the dichotomy between stationary and non-stationary series, allow for a much wider variety of dynamic processes, and provide information about the persistence and long-memory properties of the series and thus on whether or not the effects of shocks are long-lived. The univariate results indicate that the two series are highly persistent, their orders of integration being around 2, whilst the cointegration tests (using both standard and fractional techniques) imply that there exists a long-run equilibrium relationship between the two variables in first differences, i.e. their growth rates are linked together in the long run. This suggests the need for environmental policies aimed at reducing emissions during periods of economic growth.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia); Mudida, R.; Zerbo, E.
    Revista: INTERNATIONAL REVIEW OF ECONOMICS AND FINANCE
    ISSN: 1059-0560 Vol.72 2021 págs. 175 - 190
    Resumen
    This paper examines GDP per capita in sub-Saharan Africa, studying its properties through fractional integration. This approach enables us to study issues such as trends, mean-reversion, nonstationarity and breaks in a more flexible way than standard methods. We find negative relationships between level of income and persistence, implying that countries with higher levels of GPD display lower degrees of integration, and thus effects of shocks disappearing faster than those in poorer countries. The paper examines the comparative institutional characteristics underpinning the time series growth properties of the selected African countries also contributing to the literature on institutions and growth.
  • Autores: Solarin, S. A. ; Gil Alaña, Luis Alberiko (Autor de correspondencia); Lafuente, C.
    Revista: ECOLOGICAL INDICATORS
    ISSN: 1470-160X Vol.123 N° 107372 2021
    Resumen
    This paper deals with the analysis of the degree of persistence and non-stationarity in the built-up land footprint time series referring to 89 countries all over the world. Using long memory and fractional integration methods the results indicate the existence of positive trends in 57 of the countries examined, while 7 series display negative trends. Dealing with persistence we observe a large of degree of heterogeneity across countries, with some countries displaying short memory patterns, while others showing orders of integration significantly higher than 1.
  • Autores: Li, X. X.; Sang, Y. F.; Sivakumar, B.; et al.
    Revista: JOURNAL OF HYDROLOGY
    ISSN: 0022-1694 Vol.596 2021
    Resumen
    Detection of the type of trend in temperature data, by distinguishing between deterministic and stochastic trends, has important implications for understanding climate change. The Unit root tests (URTs) have been widely used for detecting the type of trend, but they do not consider the possibility of fractional integration and its influences. In this study, we detected the type of trends in observed surface air temperature during 1960-2019 at 558 stations across China, by considering fractional integration. The whole period was divided into three sub-periods by two structural breakpoints (denoted as SBP1 and SBP2). The fractional differencing parameter d was estimated by the Local Whittle (LW) function, and then three URTs (namely PP, KPSS, and ZA) were used to detect the type of trends in the temperature data during different sub-periods. The results indicated that the de-seasoned monthly temperature (DMT) series were fractionally integrated and, thus, exhibited long-range dependence characteristics, which significantly influenced the estimation of the slope of trend and detection of the type of trend. Compared with the LW function, the ordinary least squares method yielded biased estimation of the slope of trend, as it could not eliminate the influence of long-range dependence of the DMT series. The DMT series with weak long-range dependence or anti-persistent characteristics during 1960-SBP1, SBP1-SBP2, and SBP2-2019 were accurately detected as deterministic trends. However, the DMT series with strong long-range dependence during SBP1-2019 and 1960-2019 were detected to have stochastic trends by the KPSS test. Following the results of the fractional integration and URTs together, temperature over short periods in China were detected to have deterministic trends, but those at long periods were detected to have a combination of long-range dependence and deterministic trends.
  • Autores: Yaya, O. S. (Autor de correspondencia); Ogbonna, A. E. ; Furuoka, F.; et al.
    Revista: OXFORD BULLETIN OF ECONOMICS AND STATISTICS
    ISSN: 0305-9049 Vol.83 N° 4 2021 págs. 960 - 981
    Resumen
    This paper proposes a nonlinear unit root test based on the autoregressive neural network process for testing unemployment hysteresis. In this new unit root testing framework, the linear, quadratic and cubic components of the neural network process are used to capture the nonlinearity in a given time series data. The theoretical properties of the test are developed, while the size and the power properties are examined in a Monte Carlo simulation study. Various empirical applications with unemployment and inflation rates across a number of countries are carried out at the end of the article.
  • Autores: Monge, M.; Gil Alaña, Luis Alberiko
    Revista: RESOURCES POLICY
    ISSN: 0301-4207 Vol.72 2021 págs. 102040
    Resumen
    This paper analyzes the dynamics of U.S. lithium mining companies, the lithium industry and West Texas Intermediate (WTI) crude oil prices using a Fractional Cointegration Vector AutoRegressive model (FCVAR model) and a Continuous Wavelet Transform (CWT) for its resolution. The results indicate evidence of a negative relationship between FMC Corp with Albermale and SQM stock prices. These results are similar if we analyze the risk based on the beta term structure of each company. Analyzing the fractional differencing parameter for the stock prices and their logs, we observe that they are very persistent, and there are no long-term deviations in the stock prices. The same happens when analyzing the beta term structure. Based on Continuous Wavelet Transform (CWT) methods, our results show that lithium mining companies and the lithium industry are weakly correlated with WTI crude oil prices at higher frequencies (short-run) and persist through the sample period. At lower frequencies (long-term) the time series reached a high level of dependence between late 2012 to mid 2016, concluding that the lithium mining companies and the lithium industry reflect and foreshadow the responsiveness of the WTI crude oil prices during the period mentioned above.
  • Autores: Borrella Mas, Miguel Angel (Autor de correspondencia); Rode, Martin Dieter
    Revista: SERIES
    ISSN: 1869-4187 Vol.12 2021 págs. 423 - 451
    Resumen
    Ever since the spectacular boom and bust cycle of the Spanish real estate industry, endemic corruption at the local level has become a widely recognized problem in the national public discourse. In an effort to expose an under-explored political determinant, this paper investigates the effect of local and regional alignment in fomenting corruption at the Spanish municipal level. To do so, we construct an ample panel dataset on the prevalence of corrupt practices by local politicians, which is employed to test the possible impact of partisan alignment in three consecutive joint municipal and regional elections. Findings show aligned municipalities to be more corrupt than non-aligned ones, an effect that is further associated with absolute majorities at both levels of government and higher capital transfers. By contrast, we also show that ¿throwing the rascals out¿ could be an effective strategy for curbing the corrupt practices of aligned municipalities. This indicates that the democratic political process may be effective in corruption control if agreements can be reached to remove corrupt politicians or parties from power.
  • Autores: Adebola Solarin, S.; Gil Alaña, Luis Alberiko (Autor de correspondencia); Lafuente, C.
    Revista: SCIENCE OF THE TOTAL ENVIRONMENT
    ISSN: 0048-9697 Vol.751 N° 141594 2021
    Resumen
    This paper focusses on the examination of the fishing ground footprint in a group of 89 countries using fractional integration. The fishing ground footprint is one of the components of the ecological footprint. Nevertheless, it has not been investigated verymuch froman empirical viewpoint. Wecontribute to the existing literature on fishing ground footprint by using fractional integration techniques to examine the persistence of the series. Our results are very heterogeneous across countries thoughwe find that most of the series are nonstationary and non-mean reverting, with most of the countries belonging to the upper-middle and high income levels. On the other hand, most of the 14.4% of countries that show a stationary pattern belong to lower-middle and low income countries. One of the implications of the study is that policies aimed at reducing fishing grounds footprint are likely to be effective in most of the investigated countries. (C) 2020 Elsevier B.V. All rights reserved.
  • Autores: Duarte Monedero, B.; Gil Alaña, Luis Alberiko (Autor de correspondencia); Valbuena Martínez, M. C.
    Revista: IATSS RESEARCH
    ISSN: 0386-1112 Vol.45 N° 3 2021 págs. 317 - 325
    Resumen
    Traffic accidents involve great costs both at an economic and a human level. This demands that governments implement strategies to reduce their number and impact. The knowledge of the nature of the phenomenon through the study of time series of accidents enables the design of suitable policies for the desired objectives to be achieved. Thus, this paper deals with the analysis of the statistical properties of the number of road accidents on Spanish roads by using time series techniques based on the concept of fractional integration. The results indicate that the series examined display very low degrees of persistence, with the orders of integration being around 0 and thus showing a short memory pattern. This implies that shocks will be transitory, disappearing fast, and requiring strong policy measures in the case of positive shocks that reduce the number of deaths if we want to maintain that effect in the long run.
  • Autores: Bajo Buenestado, Raúl (Autor de correspondencia)
    Revista: ENERGY POLICY
    ISSN: 0301-4215 Vol.149 2021 págs. 112057
    Resumen
    Resolving the resource adequacy problem has been usually entrusted to the imposition of some kind of long-term capacity requirements or to forward markets. The Operating Reserve Demand Curve (ORDC), which is linked to short-term market conditions and does not require central planning, has been presented as an alternative system with which to ensure long-term resource adequacy in the market. Using hourly data from the Texas ERCOT market between January 2015 and February 2019, we empirically show that ORDC prices are significantly negatively affected by wind generation. We find that, if wind generation is relatively low, a 1% increase in wind generation decreases the ORDC price by around 0.15¿0.1%. This fact may preclude the ORDC from providing long-term price signals and price stability to generators. Moreover, we also find that if wind generation is greater than 9000 MW, the ORDC price is expected to be zero, which may further disincentive to increase generation capacity ¿especially dispatchable capacity that may be needed as a backup if the wind is not blowing.
  • Autores: Gil Alaña, Luis Alberiko; Yaya, O. S. (Autor de correspondencia)
    Revista: JOURNAL OF APPLIED STATISTICS
    ISSN: 0266-4763 Vol.48 N° 13 - 15 2021 págs. 2542 - 2559
    Resumen
    In this paper, we present a testing procedure for fractional orders of integration in the context of non-linear terms approximated by Fourier functions. The test statistic has an asymptotic standard normal distribution and several Monte Carlo experiments conducted in the paper show that it performs well in finite samples. Various applications using real life time series, such as US unemployment rates, US GNP and Purchasing Power Parity (PPP) of G7 countries are presented at the end of the paper.
  • Autores: Monge, M. (Autor de correspondencia); Gil Alaña, Luis Alberiko
    Revista: ENERGY
    ISSN: 0360-5442 Vol.232 2021 págs. 121034
    Resumen
    This paper deals with the analysis of (spatial) crude oil production divergence in the United States, paying particular attention to the domestic crude oil production between PADD 2 and PADD 3, which are the areas in which the bottleneck occurs and has a direct implication on the price of West Texas Intermediate (WTI). To this purpose, we use techniques based on fractional integration, fractional cointegration VAR (FCVAR) and wavelet analysis. Monthly data related to the oil production in the U.S. by regions (Anadarko, Appalachia, Bakken, Eagle Ford, Haynesville, Niobrara and Permian) from January 2007 to June 2020 are used. The results, using fractional integration and cointegration techniques, indicate that the time series analyzed are highly persistent and there is evidence of long run equilibrium relationships in some of the series. Finally, using wavelet analysis, we conclude that the most affected areas are Anadarko, Appalachia, Haynesville and Niobrara where an increase in the shale oil production is followed a decrease in WTI crude oil prices. (c) 2021 Elsevier Ltd. All rights reserved.
  • Autores: Cuestas, J. C. ; Gil Alaña, Luis Alberiko (Autor de correspondencia); Sauci, L.
    Revista: EMPIRICA
    ISSN: 0340-8744 Vol.47 2020 págs. 181 - 204
    Resumen
    In this paper we aim to analyse the degree of mean reversion of public expenditure, revenue and the difference between them, over GDP for 27 European Union (EU) countries. To gain flexibility in the analysis of the order of integration of the variables we apply fractional integration techniques. In general, we find evidence of mean reversion in all countries.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia); Yaya, O. S. ; Akinsomi, O. ; et al.
    Revista: INTERNATIONAL REVIEW OF ECONOMICS AND FINANCE
    ISSN: 1059-0560 Vol.69 2020 págs. 93 - 101
    Resumen
    This paper investigates BRICS markets' integration and segmentation between real estate indices and stock indices, and the possibility of establishing "wealth" and "credit" effects. The analysis of the relationship is based on updated techniques in time series using the concepts of fractional integration and cointegration and Granger causality. This allows us to look at market efficiency and bi-directional long-run equilibrium relationships between the two variables in the five countries. The results indicate that all the series are highly persistent, with orders of integration around 1 implying the possibility of markets to be efficient. However, we do not find any evidence suggesting long run equilibrium relationships between the real estate stock indices and the stocks indices. Meanwhile, causality is bi-directional in the case of South Africa, thus both "wealth effect" and "credit effect" exist, while only "credit effect" is established in India and Russia.
  • Autores: Monge, M. (Autor de correspondencia); Gil Alaña, Luis Alberiko
    Revista: WATER POLICY
    ISSN: 1366-7017 Vol.22 N° 6 2020 págs. 1200 - 1216
    Resumen
    Time series referring to water prices at different regions all over the world are examined in this paper by using fractionally integrated methods. We look at series corresponding to the following regions: Asia Pacific and Russia, Europe, United States and Latin America as well as global data. The results indicate large degrees of persistence, with the values of the differencing parameter being close to one in all cases and higher under the assumption of uncorrelated errors. If autocorrelation is permitted, a small degree of mean reversion is found in all except the Latin American series. The possibility of structural breaks is also investigated and the results indicate the presence of multiple breaks in the data: three in the case of Latin America and global data; four in Europe and USA and five for the Asian Pacific and Russia. Nevertheless, we do not observe a significant change in the degree of persistence across subsamples and once more mean reversion is found if autocorrelation is permitted.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia); Ruiz-Alba, J. L.; Ayestarán, R.
    Revista: APPLIED ECONOMICS
    ISSN: 0003-6846 Vol.52 N° 46 2020 págs. 5077 - 5087
    Resumen
    Issues such as seasonality, persistence and trends are examined in the series referring to the number of UK arrivals and departures using techniques based on fractional integration. This methodology is much more flexible than others based on integer degrees of differentiation and permits us to describe in a more general way the effects of shocks in the series. Our results indicate that the series display significant time trends; they show high persistence with orders of integration in the fractional range, thus showing long-lasting effects of shocks; seasonality is an important issue, and in removing the seasonality through seasonal differentiation, the time trends disappear though persistence remains as a relevant feature of the data. Policy implications of the results obtained are displayed at the end of the article.
  • Autores: Canarella, G.; Gil Alaña, Luis Alberiko; Gupta, R.; et al.
    Revista: EMPIRICAL ECONOMICS
    ISSN: 0377-7332 Vol.58 N° 4 2020 págs. 1491 - 1511
    Resumen
    We consider two important features of the historical US price data (1774-2015), namely the data's persistence and cyclical structure. We first consider the persistence of the series and focus on standard long-memory models that incorporate a peak at the zero frequency. We examine different models with respect to the deterministic terms, including nonlinear deterministic trends of the Chebyshev form. Then, we investigate a more general model that includes both persistence and cyclicality of the series and, thus, includes two fractional integration parameters, one at the zero (long-run) frequency and the other at the nonzero (cyclical) frequency. We model the cyclical structure as a Gegenbauer process. This specification outperforms the standard long-memory specifications. We find that the order of integration at the zero frequency is about 0.5, and the one at the cyclical frequency is about 0.2 with cycles repeating approximately every 6 years, producing mean-reverting long-memory effects at both the zero and cyclical frequencies. Fitting the values to this model, however, we discover the presence of a break that, according to the methods employed, takes place at around 1940-1941. The results indicate the prevalence of the long-run or zero component with a much higher degree of persistence during the second post-1940-1941 subsample, suggesting important implications for monetary policy.
  • Autores: Monge, M. (Autor de correspondencia); Gil Alaña, Luis Alberiko
    Revista: RISKS
    ISSN: 2227-9091 Vol.8 N° 4 2020 págs. 130
    Resumen
    According to a statement made in the BP Energy Outlook report in 2017, most of the world's liquid fuel (petroleum) is being consumed by the transportation industry. The mechanisms used to stimulate changes in the energy markets are affected by government policies that act in more ambitious ways than purely market-driven forces; different governments have promoted incentives involving electric mobility, especially in urban areas. The substitution for crude oil by renewable energy inputs in the transport sector is a major concern for oil producers. Among the different types of clean energies, lithium (Li) is currently assuming an increasingly strategic role. The goals of this paper are two-fold: First, we study the dynamics of the lithium industry and then the beta risk behavior of the 10 largest oil companies in the world for the time period between 11 February 2008 and 10 January 2019. We use an approach based on the continuous wavelet transform (CWT) method. The results indicate that there is a period of dependence between late 2013 and 2016 that occurs in the long-run frequencies of between 32 and 198 days for all cases, except for in the case of PetroChina, thereby demonstrating that the beta term is time-varying. We also find evidence that the beta term reflects and advances oil companies' responsiveness to movements in the lithium market. In the second part of the paper, we study the dynamics of the beta series by using long-run dependence approaches. The results indicate that the betas are highly persistent, with the order of integration found to be significantly above 1 in all cases.
  • Autores: Fernández-Crehuet, J. M.; Gil Alaña, Luis Alberiko (Autor de correspondencia); Barco, C. M.
    Revista: SOCIAL INDICATORS RESEARCH
    ISSN: 0303-8300 Vol.152 N° 3 2020 págs. 1177 - 1196
    Resumen
    The paper examines the relationship between the unemployment rate and the fertility rate in a number of European countries along with Japan and the US. We use fractional integration and cointegration techniques to establish this long run relationship. The analysis shed some light on the degree of persistence of the series, and on whether policy actions are required for highly persistent series. The evidence suggests that these two variables (unemployment and fertility rates) are not related in the long run. However, in the short run, assuming that unemployment rate is weakly exogenous, the coefficient relating the two variables is found to be negative in four countries: the Netherlands, Portugal, Spain and the US.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia); Mudida, R. ; Abakah, E. J. A.
    Revista: APPLIED ECONOMICS
    ISSN: 0003-6846 Vol.52 N° 57 2020 págs. 6171 - 6182
    Resumen
    We analyse bilateral linkages between Central Bank Policy Rates in Africa and the US, the UK, Japan, Canada, China and the Eurozone using fractional integration and cointegration. Univariate analysis documents evidence of higher than 1 integration for the African countries. For the developed countries, the orders of integration are also above 1 in all markets except for Japan. On bivariate relationships among the countries, we find evidence of cointegration in a number of cases. The article reinforces the view that it will be difficult for many African countries to pursue independent monetary policies that do not consider global policy rate developments.
  • Autores: Abakah, E. J. A.; Gil Alaña, Luis Alberiko (Autor de correspondencia); Madigu, Godfrey NIxon Achona; et al.
    Revista: INTERNATIONAL REVIEW OF ECONOMICS AND FINANCE
    ISSN: 1059-0560 Vol.69 2020 págs. 680 - 691
    Resumen
    This paper deals with the analysis of volatility persistence in 12 main cryptocurrencies (Bitcoin, Bitshare, Bytecoin, Dash, Ether, Litecoin, Monero, Nem, Ripple, Siacoin, Stellar and Tether) taking into account the possibility of structural breaks. Using fractional integration methods, the results indicate that both absolute and squared returns display long memory features, with orders of integration confirming the long memory hypothesis. However, after accounting for structural breaks, we find a reduction in the degree of persistence in the cryptocurrency market. The evi-dence of persistence in volatility imply that market participants who want to make gains across trading scales need to factor the persistence properties of cryptocurrencies in their valuation and forecasting models since that will help improve long-term volatility market forecasts and optimal hedging decisions.
  • Autores: Apergis, N.; Carmona-Gonzalez, N.; Gil Alaña, Luis Alberiko (Autor de correspondencia)
    Revista: RESOURCES POLICY
    ISSN: 0301-4207 Vol.69 2020 págs. 101857
    Resumen
    This paper deals with the analysis of silver prices and the influence of solar energy on its behaviour. For this purpose, the analysis uses long memory methods based on fractional integration and cointegration. The results indicate that the two variables are very persistent, though any long run equilibrium relationship between them is not observed. Nevertheless, the results illustrate some short-run negative effects from solar energy capacity on silver prices.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia); Yaya, O. S.; Awolaja, O. G.; et al.
    Revista: JOURNAL OF APPLIED METEOROLOGY AND CLIMATOLOGY
    ISSN: 1558-8424 Vol.59 N° 8 2020 págs. 1351 - 1367
    Resumen
    This paper focuses on the analysis of the time series behavior of the air quality in the 50 U.S. states by looking at the statistical properties of particulate matter (PM10 and PM2.5) datasets. We use long daily time series of outdoor air quality indices to examine issues such as the degree of persistence as well as the existence of time trends in data. For this purpose, we use a long-memory fractionally integrated framework. The results show significant negative time trend coefficients in a number of states and evidence of long memory in the majority of the cases. In general, we observe heterogeneous results across counties though we notice higher degrees of persistence in the states on the west with respect to those on the east, where there is a general decreasing trend. It is hoped that the findings in the paper will continue to assist in quantitative evidence-based air quality regulation and policies.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia); Yaya, O. S.; Carmona-González, N.
    Revista: THEORETICAL AND APPLIED CLIMATOLOGY
    ISSN: 0177-798X Vol.142 N° 1-2 2020 págs. 103 - 115
    Resumen
    The poor air quality in the London metropolis has sparked our interest in studying the time series dynamics of air pollutants in the city. The dataset consists of roadside and background air quality for seven standard pollutants: nitric oxide (NO), nitrogen dioxide (NO2), oxides of nitrogen (NOx), ozone (O-3), particulate matter (PM(10)and PM2.5) and sulphur dioxide (SO2), using fractional integration to investigate issues such as persistence, seasonality and time trends in the data. Though we notice a large degree of heterogeneity across pollutants and a persistent behaviour based on a long memory pattern is observed practically in all cases. Seasonality and decreasing linear trends are also found in some cases. The findings in the paper may serve as a guide to air pollution management and European Union (EU) policymakers.
  • Autores: Yaya, O. S. (Autor de correspondencia); Gil Alaña, Luis Alberiko
    Revista: INTERNATIONAL ADVANCES IN ECONOMIC RESEARCH
    ISSN: 1083-0898 Vol.26 N° 3 2020 págs. 303 - 315
    Resumen
    Infant mortality rates in 34 Sub-Saharan African countries (1960-2016), obtained from the Federal Reserve Bank of St. Louis database, were examined in this paper by focusing on the degree of persistence and non-linearities in the growth rate series. Persistence deals with the degree of association between the observations. Non-linearity occurs when departing from the linear assumption as in a time trend. These two issues are relevant in this context because they are intimately related. Based on the high degree of persistence observed in the series examined, instead of investigating structural breaks, which produce abrupt changes in the data, a non-linear approach was used based on Chebyshev polynomials in time, producing smooth rather than abrupt changes. This approach has never been examined in a unified framework in the treatment of infant mortality rates. The results indicate that half of the countries examined display non-linearities and the orders of integration of the series are extremely large in all cases, being around two in the majority of them. Looking at the growth rate series, significant negative trends were observed for: Chad, Equatorial Guinea and Mozambique. Evidence of mean reversion and thus transitory shocks, were observed for Lesotho, Rwanda, Botswana and Mozambique. Time dynamics of the series were expected to persist in order to ascertain the decline in mortality rates. Therefore, serious government interventions are required in managing infant health in these countries.
  • Autores: Caporale, G. M. (Autor de correspondencia); Gil Alaña, Luis Alberiko; Poza, C.
    Revista: RESEARCH IN INTERNATIONAL BUSINESS AND FINANCE
    ISSN: 0275-5319 Vol.52 2020
    Resumen
    This paper uses fractional integration techniques to examine the stochastic behaviour of high and low stock prices in Europe and then to test for the possible existence of long-run linkages between them by looking at the range, i.e., the difference between the two logged series. Specifically, monthly, weekly and daily data on the following five European stock market indices are analysed: DAX30 (Germany), FTSE100 (UK), CAC40 (France), FTSE MIB40 (Italy) and IBEX35 (Spain). In all cases, the order of integration of the range is lower than that of the original series, which implies the existence of a long-run equilibrium relationship between high and low prices. Further, multiple breaks are found in the high and low-price series but no breaks in the range, and the estimated fractional differencing parameter is positive in all cases, which represents evidence of long memory.
  • Autores: Solarin, S. A.; Gil Alaña, Luis Alberiko (Autor de correspondencia); Lafuente, C.
    Revista: SOCIAL INDICATORS RESEARCH
    ISSN: 0303-8300 Vol.147 N° 3 2020 págs. 825 - 841
    Resumen
    This paper deals with the analysis of the misery index in a group of 55 African countries by using fractional integration or I(d) techniques. In doing so, we can measure the degree of persistence of the index in a more flexible way than with other methods that simply use integer degrees of differentiation (zero or one). Our results indicate a large degree of heterogeneity across the countries, with some showing short memory behaviour (d = 0); others long memory mean reverting behaviour (0 < d < 1) and others indicating the presence of unit roots (d = 1). Thus, shocks will have different effects depending on the country examined. Generally, we also find a positive relationship between the levels of persistence and income.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia); Cárcel, H.
    Revista: THE NORTH AMERICAN JOURNAL OF ECONOMICS AND FINANCE
    ISSN: 1062-9408 Vol.51 2020 págs. 100848
    Resumen
    In their seminal work, Baillie and Bollerslev (1994) carried out an analysis of deviations from the cointegrating relationship of seven important exchange rates. They suggested that the exchange rate series possess long memory and therefore such processes could be well described as fractionally integrated processes. Hence, the influence of shocks to the equilibrium exchange rates may only vanish at very long horizons. In this work we analyze the cointegrating structure of five exchange rates to the US dollar, namely the British pound, the Euro, the Swedish Krona, the Canadian Dollar and the Swiss Franc. The series possess long memory and we show that they can be modeled through fractional integration. In fact, standard cointegration is rejected with the more traditional Johansen CVAR methodology. By using the recently introduced Fractionally Cointegrated VAR by Johansen and Nielsen (2012) we provide a cointegrating relationship taking into account fractional integration.
  • Autores: Millán Quijano, Jaime Augusto (Autor de correspondencia)
    Revista: APPLIED ECONOMICS LETTERS
    ISSN: 1350-4851 Vol.27 N° 19 2020 págs. 1552 - 1555
    Resumen
    This paper discusses the conditions needed to estimate the local average treatment effect (LATE) of a policy using the 'difference-in-discontinuities' method while considering imperfect compliance. I show that simple and plausible assumptions about the participation and effects of the confounding existing policies allow the identification of the causal effect of a new policy. Identification is feasible even when information about the participation in other confounding policies is not available.
  • Autores: Adebola Solarin, S.; Gil Alaña, Luis Alberiko (Autor de correspondencia); Lafuente, C.
    Revista: ENERGY
    ISSN: 0360-5442 Vol.195 2020 págs. 116933
    Resumen
    Despite the rising profiles of both shale oil and shale gas plays in the U.S. and the importance of testing for their persistence, no study has examined the persistence of the availability of shale oil and shale gas plays in the country. This paper focuses on the analysis of shale oil and shale gas production using long range dependence techniques in the U.S. for the period, January 2000 to April 2019. The empirical findings illustrate that the series examined are highly persistent, finding very little evidence of mean reverting patterns. Among the implications of the results, which are discussed in the paper, is that there is a hysteresis in shale oil and gas production in U.S., and therefore shocks resulting from new government policies relating to shale oil and gas in U.S. will have lasting impacts on their production. Besides, it will not be feasible to use forecasting as a basic instrument for unconventional energy sources as the previous values of shale oil and gas production cannot be utilised to accurately forecast their subsequent values. (C) 2020 Elsevier Ltd. All rights reserved.
  • Autores: Caporale, G. M. (Autor de correspondencia); Gil Alaña, Luis Alberiko; Tripathy, T.
    Revista: FINANCE RESEARCH LETTERS
    ISSN: 1544-6123 Vol.32 2020
    Resumen
    This paper applies a fractional integration framework to analyse the stochastic behaviour of two Russian stock market volatility indices (namely the originally created RTSVX and the new RVI that has replaced it) using daily data over the period 2010-2018. The empirical findings are consistent and imply in all cases that the two series are mean-reverting, i.e. they are not highly persistent and the effects of shocks disappear over time. This is true regardless of whether the errors are assumed to follow a white noise or autocorrelated process; this is confirmed by the rolling window estimation, and it holds for both subsamples, before and after the detected break. On the whole, it seems shocks do not have permanent effects on volatility in the Russian stock market.
  • Autores: Boateng, A.; Claudio-Quiroga, G.; Gil Alaña, Luis Alberiko (Autor de correspondencia)
    Revista: APPLIED ECONOMICS
    ISSN: 0003-6846 Vol.52 N° 22 2020 págs. 2339 - 2352
    Resumen
    The structure of the nominal exchange rates in South Africa is examined by using fractional integration. We investigate the levels and the volatilities against the US dollar, the British pound, the Euro, the Japanese yen, the Chinese yuan, the Australian dollar, and the Botswanan pula. The results indicate that most series are unit root, I(1) and though there is some evidence of mean reversion, the orders of integration are close to 1, implying high levels of persistence. However, there is evidence of mean reversion for Bostwana Pula in various subsamples. For the volatilities, the stationary long memory is observed in all cases.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia); Martin-Valmayor, M.; Wanke, P.
    Revista: ENERGY STRATEGY REVIEWS
    ISSN: 2211-467X Vol.31 2020 págs. 100522
    Resumen
    Slow economic recovery, market concentration, and scant alternative energy sources make the Iberian energy market quite idiosyncratic when compared to the rest of the EU. This paper focusses on the Iberian energy market by dealing with the analysis of the relationship between energy consumption and energy prices by using fractional integration in the Iberian market. This technique is used in order to examine the degree of persistence of the series, looking at the spot and futures markets in Spain and Portugal. The results indicate that all the series are fractionally integrated, showing long memory and mean reverting behaviour. Moreover, a close relation between energy consumption and energy prices is found in the spot market whereas it is not found in the futures market. In fact, there is a weak relationship between the futures market and energy consumption. However, regarding energy pricing, the relationship is stronger but with the spot market itself.
  • Autores: Gil Alaña, Luis Alberiko; Monge, M.
    Revista: INTERNATIONAL JOURNAL OF CLIMATOLOGY
    ISSN: 0899-8418 Vol.40 N° 15 2020 págs. 6603 - 6611
    Resumen
    This paper deals with the analysis of the relationship between CO2 emissions and temperatures. For this purpose, global CO2 emissions and four measures of global temperatures (land, land and ocean, northern and southern temperatures) are used. We used techniques based on fractional integration and cointegration. The results indicate first that the orders of integration differ in the two variables. Thus, while emissions are I(1) or I(d) with d higher than 1, temperatures display orders of integration strictly smaller than 1 and thus invalidating the hypothesis of cointegration between the two variables. Due to this, another approach is conducted where we suppose that the emissions are weakly exogenous in relation to the temperatures. The results using this approach show a significantly positive relationship between the two variables with a long memory pattern.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia); Dadgar, Y. ; Nazari, R.
    Revista: PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
    ISSN: 0378-4371 Vol.541 2020 págs. 123705
    Resumen
    This paper deals with the analysis of the world, OPEC and non-OPEC oil production by testing the degree of persistence of the series throughout fractional integration. The analysis is relevant in the sense that it allows us to determine if shocks in the series have permanent or transitory effects. The results indicate evidence of mean reversion in the three series, especially for the world and OPEC production. We also notice evidence of multiple breaks though the degree of persistence seems to be relatively stable across the subsamples, with most of the values in the range [0.5, 1) implying non-stationary and mean reverting behavior. (C) 2019 Elsevier B.V. All rights reserved.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia); Skare, M.; Buric, S. B.
    Revista: APPLIED ECONOMICS
    ISSN: 0003-6846 Vol.52 N° 5 2020 págs. 459 - 474
    Resumen
    Full employment remains at the center of any economic policy. Following Okun's conclusion regarding the trade-off relation between unemployment and real gross national product growth, new studies on different aspects of variable and methodological issues have brought new light to the theory. The purpose of this paper is to investigate the unemployment/GDP relationship, i.e. Okun's Law, in order to test the basic Okun's assumption taking into account modern economic circumstances and new methodological specifications. This study analyzes the series for 24 selected countries using fractionally integrated methods. Using these techniques, the results substantially change across countries and also depending on the specification of the error term. Unemployment and output growth rates series show some degree of long memory behavior for most countries while the stability of Okun's coefficient is also challenged since it changes drastically. Estimated gaps are quite high, not only for -0.30 standard coefficient values but also when compared with other studies' results. Policy makers can be assisted with these techniques in their efforts to design optimal economic policy to achieve full employment.
  • Autores: Monge, M.; Gil Alaña, Luis Alberiko; Cristóbal, E.
    Revista: REVIEW OF DEVELOPMENT FINANCE
    ISSN: 1879-9337 Vol.10 N° 2 2020 págs. 31 - 37
    Resumen
    Lithium has a strategic role as a natural resource as more and more clean technologies emerge. This paper aims to analyze the time-series properties of the mergers and acquisitions (M&A) activity in the behavior of the lithium sector, applying statistical methods based on long memory and fractional integration models. Our results indicate that the series has a long memory and fractionally integrated behavior with an order of integration strictly smaller than 1, thus we can conclude that the impacts will be transient and are expected to disappear on their own in the long term.
  • Autores: Kinateder, Markus; Kiss, H. J. (Autor de correspondencia); Pintér, Á.
    Revista: EXPERIMENTAL ECONOMICS
    ISSN: 1386-4157 Vol.23 N° 3 2020 págs. 873 - 894
    Resumen
    In a Diamond¿Dybvig type model of financial intermediation, we allow depositors to announce at a positive cost to subsequent depositors that they keep their funds deposited in the bank. Theoretically, the mere availability of public announcements (and not its use) ensures that no bank run is the unique equilibrium outcome. Multiple equilibria¿including bank run¿exist without such public announcements. We test the theoretical results in the lab and find a widespread use of announcements, which we interpret as an attempt to coordinate on the no bank run outcome. Withdrawal rates in general are lower in information sets that contain announcements.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia); Payne, J. E.
    Revista: APPLIED ECONOMICS LETTERS
    ISSN: 1350-4851 Vol.27 N° 10 2020 págs. 831 - 835
    Resumen
    Researchers utilizing the U.S economic policy uncertainty index and its sub-categories need to be cognizant of the unique persistence profile of each index. We use fractional integration techniques to estimate the degree of persistence in the U.S. economic policy uncertainty index and its 11 sub-categories. The results indicate the estimated values of the differencing parameter, d, are in the interval (0, 1) supporting fractional integration and rejecting the classical models based on stationarity (d = 0) or unit roots (d = 1). Though there is a fair amount of heterogeneity across indices, shocks will be persistent, but mean reverting.
  • Autores: Caporale, G. M.; Gil Alaña, Luis Alberiko
    Revista: ECONOMIC PAPERS
    ISSN: 0812-0439 Vol.39 N° 2 2020 págs. 162 - 166
    Resumen
    This note examines the degree of persistence of UK inflation by applying fractional integration methods to historical data spanning the period 1210-2016; the chosen approach is more general than the popular ARMA models based on the classical I(0) vs. I(1) dichotomy. The full-sample results do not suggest that UK inflation is a persistent process; however, the recursive analysis indicates an increase in the degree of persistence in the 16th century and more recently after WWI and in the last quarter of the 20th century. On the whole, monetary and exchange rate regime changes do not appear to have had a significant impact on the stochastic behaviour of inflation if one takes a long-run, historical perspective.
  • Autores: Caporale, G. M.; Gil Alaña, Luis Alberiko; Poza, C.
    Revista: THE QUARTERLY REVIEW OF ECONOMICS AND FINANCE
    ISSN: 1062-9769 Vol.77 2020 págs. 50 - 61
    Resumen
    This paper examines persistence, structural breaks and non-linearities in the case of five European stock market indices, namely the FTSE100 (UK), DAX30 (Germany), CAC40 (France), IBEX35 (Spain) and FTSE MIB40 (Italy), using fractional integration methods. The empirical results provide no evidence of non-linearities in either prices or returns; the former are found to exhibit unit roots and the latter to be I(0) in most cases. Further, between 2 and 4 structural breaks are found for each of the return series, and mean reversion in some subsamples. (C) 2020 The Author(s). Published by Elsevier Inc. on behalf of Board of Trustees of the University of Illinois.
  • Autores: Caporale, G. M.; Gil Alaña, Luis Alberiko
    Revista: SOUTH AFRICAN JOURNAL OF ECONOMICS
    ISSN: 0038-2280 Vol.88 N° 2 2020 págs. 174 - 185
    Resumen
    This paper examines generalised purchasing power parity (G-PPP) and business cycle synchronisation in the East Africa Community with the aim of assessing the prospects for a monetary union. The univariate fractional integration analysis shows that the individual series exhibit unit roots and are highly persistent. The fractional bivariate cointegration tests suggest that there exist bivariate fractional cointegrating relationships between the exchange rate of the Tanzanian shilling and those of the other EAC countries, and also between the exchange rates of the Rwandan franc, the Burundian franc and the Ugandan shilling. The Fractionally Cointegrated Vector AutoRegressive (FCVAR) results imply the existence of a single cointegrating relationship between the exchange rates of the EAC countries. On the whole, there is evidence in favour of G-PPP. In addition, there appears to be a high degree of business cycle synchronisation between these economies. On both grounds, one can argue that a monetary union should be feasible.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia); Skare, M. ; Prziklas-Druzeta, R.
    Revista: THE QUARTERLY REVIEW OF ECONOMICS AND FINANCE
    ISSN: 1062-9769 Vol.72 2019 págs. 65 - 72
    Resumen
    This paper investigates persistence of income inequality and its major determinants in 26 OECD countries. We use fractional integration and select GDP per capita, inflation and employment as major macroeconomic determinants of income inequality. We find income inequality is highly persistent in all the countries examined. There is a significant long-run equilibrium relationship between GDP growth and income inequality. Our results challenge the standard 'trickle-down' theory finding evidence of a negative and robust relationship between GDP per capita growth and the Gini index. Thus, GDP per capita growth shows large redistributive effects while inflation and employment are statistically insignificant. (C) 2019 Board of Trustees of the University of Illinois. Published by Elsevier Inc. All rights reserved.
  • Autores: Bouri, E. ; Gil Alaña, Luis Alberiko (Autor de correspondencia); Gupta, R. ; et al.
    Revista: INTERNATIONAL JOURNAL OF FINANCE AND ECONOMICS
    ISSN: 1076-9307 Vol.24 N° 1 2019 págs. 412 - 426
    Resumen
    Motivated by the emergence of Bitcoin as a speculative financial investment, the purpose of this paper is to examine the persistence in the level and volatility of Bitcoin price, accounting for the impact of structural breaks. Using parametric and semiparametric techniques, we find strong evidence in favour of a permanency of the shocks and lack of mean reversion in the level series. We also reveal evidence of structural changes in the dynamics of Bitcoin. After accounting for the structural breaks in the level series, evidence of mean reversion is uncovered in some cases. Further analyses show evidence of a long memory in the two measures of volatility (absolute and the squared returns), whereas some cases of short memory are revealed in the squared returns series in particular. Practical implications are discussed on the inefficiency in the Bitcoin market and its importance for Bitcoin users and investors.
  • Autores: Caporale, G. M. (Autor de correspondencia); Gil Alaña, Luis Alberiko; Plastun, A.
    Revista: JOURNAL OF ECONOMICS AND FINANCE
    ISSN: 1055-0925 Vol.43 N° 4 2019 págs. 657 - 680
    Resumen
    This paper examines long-term price overreactions in various financial markets (commodities, US stock market and FOREX). First, a number of statistical tests are carried out for overreactions as a statistical phenomenon. Second, a trading robot approach is applied to test the profitability of two alternative strategies, one based on the classical overreaction anomaly, the other on a so-called ¿inertia anomaly¿. Both weekly and monthly data are used. Evidence of anomalies is found predominantly in the case of weekly data. In the majority of cases strategies based on overreaction anomalies are not profitable, and therefore the latter cannot be seen as inconsistent with the EMH.
  • Autores: Plakandaras, V. ; Gupta, R.; Gil Alaña, Luis Alberiko; et al.
    Revista: APPLIED ECONOMICS LETTERS
    ISSN: 1350-4851 Vol.26 N° 13 2019 págs. 1104 - 1110
    Resumen
    In this paper, we focus on the stochastic (chaotic) attributes of the US dollar-based exchange rates for Brazil, Russia, India, China and South Africa (BRICS) using a long-run monthly dataset covering 1812M01-2017M12, 1814M01-2017M12, 1822M07-2017M12, 1948M08-2017M12, and 1844M01-2017M12, respectively. For our purpose, we consider the Lyapunov exponents, robust to nonlinear and stochastic systems, in both full - samples and in rolling windows. For comparative purposes, we also evaluate a long-run dataset of a developed currency market, namely British pound over the period of 1791M01-2017M12. Our empirical findings detect chaotic behavior only episodically for all countries before the dissolution of the Bretton Woods system, with the exception of the Russian ruble. Overall, our findings suggest that the establishment of the free floating exchange rate system have altered the path of exchange rates removing chaotic dynamics from the phenomenon, and hence, the need for policymakers to intervene in the currency markets for the most important emerging market bloc, should be carefully examined.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia); Ozdemir, Z. A.; Tansel, A.
    Revista: EMERGING MARKETS FINANCE AND TRADE
    ISSN: 1540-496X Vol.55 N° 1 2019 págs. 201 - 217
    Resumen
    In this article we have examined the unemployment rate series in Turkey by using long memory models and in particular employing fractionally integrated techniques. Our results suggest that unemployment in Turkey is highly persistent, with orders of integration equal to or higher than 1 in the majority of the cases. This implies lack of mean reversion and persistence of the shocks. We found evidence in favor of mean reversion in the case of female unemployment and this happens for all the groups of non-agricultural, rural, urban, and youth unemployment series. The possibility of nonlinearities are observed only in the case of female unemployment and the degree of persistence is higher in the cases of female and youth unemployment series. Important policy implications emerge from our empirical results. Thus, for example, positive shocks reducing unemployment will have permanent effects being good for the economy, but negative shocks increasing unemployment will also have permanent effects and strong measures should then be adopted to reduce it. Labor and macroeconomic policies will most likely have long-lasting effects on the unemployment rates.
  • Autores: Yaya, O. S. (Autor de correspondencia); Gil Alaña, Luis Alberiko; Amoateng, A. Y.
    Revista: EUROPEAN JOURNAL OF POPULATION
    ISSN: 0168-6577 Vol.35 N° 4 2019 págs. 675 - 694
    Resumen
    This paper deals with the analysis of the under-5 mortality rate series in the G7 countries by using fractional integration techniques, including structural breaks and potential nonlinearities in the data. Several features were detected in the results: Firstly, we observed that for the neonatal data, the order of integration is equal to or higher than one in all cases, contrary to what happens for the remaining cases (< 1- < 5 years) where mean reversion is found in many cases, especially as we increase the age of death. Thus, shocks affecting the neonatal (< 1 month from delivery) mortality rates will have permanent effects requiring special attention to recover the original trends. As expected, all the time trend coefficients were significantly negative and the highest reduction in the mortality rates was obtained in Japan, which might be related with the 17-year increase in life expectancy for the country. Due to the sensitivity of the methodological approaches, the use of robust time series approaches when analyzing child mortality rates is highly recommended.
  • Autores: Adebola, S. S.; Gil Alaña, Luis Alberiko (Autor de correspondencia); Madigu, G.
    Revista: PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
    ISSN: 0378-4371 Vol.523 2019 págs. 1227 - 1236
    Resumen
    This paper deals with the analysis of the relationship between cryptocurrencies and gold prices. In particular, we use fractional integration and cointegration techniques to examine the degree of persistence of the series and the possibility of short and long run equilibrium relationships between them. Our results indicate that there is evidence of mean reversion in gold prices and also in some of the cryptocurrencies; however, cointegration is only found in a few cases with a very small degree of cointegration in the long run relationship. Testing the hypothesis of convergence throughout the ratios, again we only found evidence of mean reversion in the cases of Bytecoin, Dash, Ether, Monero and Ether. (C) 2019 Elsevier B.V. All rights reserved.
  • Autores: Caporale, G. M. ; Gil Alaña, Luis Alberiko (Autor de correspondencia)
    Revista: INTERNATIONAL REVIEW OF ECONOMICS AND FINANCE
    ISSN: 1059-0560 Vol.61 2019 págs. 170 - 178
    Resumen
    This paper uses fractional integration/cointegration techniques to examine the stochastic behaviour of long-term interest rates (on government securities with 10-year maturity) in 23 European countries as well as their long-run linkages on a pairwise basis over the period January 2001-February 2018. The results are mixed and sensitive to the (parametric and semi-parametric) estimation methods. Evidence is found for both unit roots and mean reversion in the series analysed. Various rates (especially in the case of smaller economies) appear to be fractionally cointegrated, but interestingly German, French and UK rates are not found to be linked to any other European rates.
  • Autores: Bajo Buenestado, Raúl; Borrella Mas, Miguel Angel (Autor de correspondencia)
    Revista: JOURNAL OF PUBLIC ECONOMICS
    ISSN: 0047-2727 Vol.177 2019 págs. 104040
    Resumen
    Does the tax pass-through effect go beyond borders? We use firm-level prices to analyze the incidence of a tax change on firms on different sides of a border in an industry with differentiated firms selling a homogeneous product. By using a difference-in-differences strategy, we find that firms' tax responses are consistent with predicted firms' best-responses. We show that the effect of the tax change was even greater after a politician publicly asked his fellow citizens to avoid crossing the border to buy. Besides suggesting that politicians should be more prudent, these findings highlight the importance of fiscal harmonization in areas without economic borders.
  • Autores: Gil Alaña, Luis Alberiko; Trani, Tommaso (Autor de correspondencia)
    Revista: INTERNATIONAL ECONOMICS
    ISSN: 2110-7017 Vol.158 2019 págs. 64 - 76
    Resumen
    Since recent literature has quantified the persistence of changes in the real exchange rate (RER) using trade-weighted data, in this paper we ask whether the trade-weighted RER is mean reverting. We focus on post-Bretton Woods data for the G7 countries and, after revising the strong correlation between the RER and the nominal exchange rate over that period, we follow a fractional integration approach. We consider different assumptions for the residuals and allow for breaks at unknown dates. We conclude that the nonstationary behaviour of the RER is mean reverting (i.e., it is integrated of order ) for about half of the G7 countries and that allowing for structural breaks affects the test results obtained in absence of breaks but do not invalidate them.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia); Monge, M.
    Revista: RESOURCES POLICY
    ISSN: 0301-4207 Vol.60 2019 págs. 198 - 202
    Resumen
    Understanding the behavior of the lithium supply and the estimated consumption and flows is important for social and economic development. We focus on estimating persistence and for this purpose, we use techniques based on fractional integration. The empirical results provide evidence of mean reversion for the data corresponding to the global lithium production from 1925 to 2014 but not for U.S. lithium-related series such as production (1900-2008), estimated consumption (1900-2014), imports (1960-2015), and exports (1971-2015).
  • Autores: Caporale, G. M. (Autor de correspondencia); Gil Alaña, Luis Alberiko
    Revista: TOURISM ECONOMICS
    ISSN: 1354-8166 Vol.25 N° 5 2019 págs. 827 - 831
    Resumen
    This article analyses seasonality and persistence in the number of UK overseas visitors applying a fractional integration framework to (monthly and quarterly) data from 1986 to 2017. The results indicate that long memory is present in the series and the degree of persistence is higher for seasonally adjusted data, with shocks having transitory but long-lasting effects.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia); Sauci, L.
    Revista: CLIMATIC CHANGE
    ISSN: 0165-0009 Vol.157 2019 págs. 355 - 364
    Resumen
    This paper deals with the analysis of the temperatures in a group of 29 stations located in twelve European countries by looking at the coefficients in a linear time trend regression model and allowing for long memory patterns in the error term. The results indicate that long memory is present in practically all cases, and the time trend coefficients are statistically significant in the majority of the cases implying evidence of increasing warming trends. This pattern is particularly noticeable in the case of several stations located across Italy and France, which might be related with micro climates affecting these regions.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia); Monge, M.; Rojo, M. F. R.
    Revista: JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY
    ISSN: 0739-0572 Vol.36 N° 12 2019 págs. 2257 - 2266
    Resumen
    This paper addresses analysis of the global monthly sea surface temperatures using a reconstructed dataset that goes back to 1884. We use fractional integration methods to examine features such as persistence, seasonality, and time trends in the data. The results show that seasonality is a relevant issue, finding evidence of seasonal unit roots. With the seasonal component removed, persistence is also very significant, and, when looking at the data month by month, evidence of significant linear trends is detected in all cases. According to these results, monthly sea surface temperatures increase by between 0.07 degrees and 0.11 degrees C every 100 years.
  • Autores: Caporale, G. M. (Autor de correspondencia); Gil Alaña, Luis Alberiko
    Revista: INTERNATIONAL ECONOMICS
    ISSN: 2110-7017 Vol.159 2019 págs. 140 - 150
    Resumen
    This paper revisits the Fisher hypothesis concerning the determination of real rates by estimating fractional integration and cointegration models for nominal interest rates and expected inflation in the G7 countries. Two sets of results are obtained under the alternative assumptions of white noise and Bloomfield (1973) autocorrelated errors respectively. The univariate analysis suggests that the differencing parameter is higher than 1 for most series in the former case, whilst the unit root null cannot be rejected for the majority of them in the latter case. The multivariate results imply that there exists a positive relationship, linking nominal interest rates to inflation; however, there is no evidence of the full adjustment of the former to the latter required by the Fisher hypothesis.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia); Sauci, L.
    Revista: INTERNATIONAL JOURNAL OF CLIMATOLOGY
    ISSN: 0899-8418 Vol.39 N° 13 2019 págs. 5091 - 5103
    Resumen
    This paper investigates the time trend coefficients in the temperatures in 48 US states using monthly data from January 1895 to December 2017, as well as in their anomalies with respect to the base period 1901-2000. For this purpose, we use techniques based on fractional integration, which is a more general approach than the standard methods used in the literature based on integer differentiation. The results indicate that with the exception of 10 states, in the remaining 38, the temperature anomalies have increased across time, with the increase being higher than the one expected under the other more standard approaches. The highest increases correspond to New Jersey and Rhode Island, with an increase of approximately 2.9 degrees C over the last 100years.
  • Autores: Caporale, G. M. (Autor de correspondencia); Gil Alaña, Luis Alberiko; Plastun, A.
    Revista: JOURNAL OF STATISTICAL COMPUTATION AND SIMULATION
    ISSN: 0094-9655 Vol.89 N° 10 2019 págs. 1763 - 1779
    Resumen
    This paper investigates persistence in financial time series at three different frequencies (daily, weekly and monthly). The analysis is carried out for various financial markets (stock markets, FOREX, commodity markets) over the period from 2000 to 2016 using two different long memory approaches (R/S analysis and fractional integration) for robustness purposes. The results indicate that persistence is higher at lower frequencies, for both returns and their volatility. This is true of the stock markets (both developed and emerging) and partially of the FOREX and commodity markets examined. Such evidence against the random walk behaviour implies predictability and is inconsistent with the Efficient Market Hypothesis (EMH), since abnormal profits can be made using trading strategies based on trend analysis.
  • Autores: Aye, G. C. (Autor de correspondencia); Christou, C.; Gil Alaña, Luis Alberiko; et al.
    Revista: JOURNAL OF INTERNATIONAL DEVELOPMENT
    ISSN: 0954-1748 Vol.31 N° 1 2019 págs. 101 - 116
    Resumen
    This paper decomposes the term spread into the expectation and the term premium components using a fractional integration approach and subsequently uses same with the economic policy uncertainty index to forecast the probability of recession in South Africa. We use different specifications of the probit model and quarterly data from 1990:1 to 2012:1. Our out-of-sample results show that the model that incorporates the expectation component and economic policy uncertainty provides the best forecast of recession. All three recession periods in our sample were accurately dictated by the prediction models and the best forecast occurred at the four quarters ahead horizon. A robustness check with a longer sample from 1946q1 to 2017q4 but excluding the factors and economic policy uncertainty due to data limitation provided justification for decomposing the term spread as the model with the expected spread turned out to be the best. We draw the implications of these findings. (c) 2018 John Wiley & Sons, Ltd.
  • Autores: Gil Alaña, Luis Alberiko; Yaya, O. S. (Autor de correspondencia); Fagbamigbe, A. F.
    Revista: THEORETICAL AND APPLIED CLIMATOLOGY
    ISSN: 0177-798X Vol.137 N° 1-2 2019 págs. 61 - 76
    Resumen
    In this paper, we examine the statistical properties of rainfall data and temperature in six sub-Saharan African countries in the western, eastern, and southern regions (Botswana, Ethiopia, Ghana, Nigeria, Uganda, and South Africa) using time series data spanning between 1900 and 2012. By using linear trends, seasonality, and long-range dependence models, in fractional or I(d) frameworks, the results first indicate that time trends are required in most cases to explain the time series properties of the climatic series. Evidence of anti-persistence (d<0) or I(0) behavior is found for the rainfall data, while long memory (d>0) is found for the temperature data. Evidence of structural breaks are only found in the cases of Ethiopia, Ghana, and Uganda for the temperature data. With both series displaying significant evidence of seasonality and by working with the seasonally differenced data, the results show evidence of I(0) behavior or anti-persistence (d<0) for the rainfall data but long memory (d>0) for the temperature data. Testing the causality between the two variables, the results indicate evidence of causality in the two directions in all cases except for the case of the temperature on the rainfall in South Africa. The implication of the results obtained here is that erratic or constant rainfall is expected in Africa in the future while temperature is likely to continue to increase, and these subsequently lead to future warming experiences.
  • Autores: Solarin, S. A.; Gil Alaña, Luis Alberiko (Autor de correspondencia); Lafuente, C.
    Revista: CARBON MANAGEMENT
    ISSN: 1758-3004 Vol.10 N° 4 2019 págs. 405 - 415
    Resumen
    The existing studies on persistence of ecological footprint have largely concentrated on the aggregate ecological footprint without adequately considering its components. The aim of this paper is to contribute to the existing papers on ecological footprint by examining the persistence of carbon footprint emissions for a group of 92 countries. Unlike the extant papers, this paper uses fractional integration, which allows the consideration of stationary I(0) and nonstationary I(1) cases as particular models of interest, being therefore more general and flexible than these two classical representations. The results indicate that only 25 of the 92 countries display mean reversion, with orders of integration strictly below 1 and showing transitory shocks, most of them belonging to lower middle- and low-income countries. In these 25 countries it might not be easy to change the long-run path of the carbon footprint as any policy shocks will have temporary effects. The foregoing findings can help policymakers in each nation to design efficient emission-reducing policies.
  • Autores: Isoardi, M.; Gil Alaña, Luis Alberiko (Autor de correspondencia)
    Revista: EASTERN ECONOMIC JOURNAL
    ISSN: 0094-5056 Vol.45 N° 2 2019 págs. 204 - 223
    Resumen
    This paper deals with the analysis of the persistence in the inflation rate in Argentina. For this purpose, we use fractionally integrated techniques based on monthly and annual data. The results show evidence of fractional integration and long memory behavior in both cases, being especially noticeable in the case of monthly data with shocks having long-lived effects.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia); Trani, Tommaso
    Revista: ENVIRONMENTAL AND RESOURCE ECONOMICS
    ISSN: 0924-6460 Vol.73 N° 1 2019 págs. 213 - 228
    Resumen
    We analyze the evolution across time of CO2 emissions in the European Union (EU) using advanced econometric techniques in time series analysis. We estimate the time trends along with the orders of integration of series corresponding to global CO2 emissions in EU member states using both parametric and semiparametric methods. The results show that there is a significantly negative trend only in the case of the UK, this being also a country where the trend shows mean reversion. At the other extreme, Spain, Italy, Greece and Bulgaria are some of the countries where CO2 emissions show positive trends and orders of integration that are substantially above unity. Moreover, we examine the CO2 emissions of the EU as a whole, China and the US, finding some support for mean reversion only in the second case. Therefore, there is less urgent need for policy reforms in the U.K. and somehow China than in the rest of the EU or the US.
  • Autores: Awe, O. O.; Gil Alaña, Luis Alberiko (Autor de correspondencia)
    Revista: APPLIED ECONOMICS
    ISSN: 0003-6846 Vol.51 N° 50 2019 págs. 5482 - 5489
    Resumen
    This article deals with the modelling of growth rate time series in Nigeria with a view of detecting its statistical properties, structural breaks and non-linearities. We employ both fractional integration and structural break time series techniques in modelling the annual growth rate series of the Nigerian GDP growth rate for about 55 years. The data span between 1960 and 2017. The results show that Nigerian growth rate is unstable with non-linearities and long-range dependence structures. We also investigate what might explain these features and conclude that erratic political institutions, associated with poor economic management and insecurity in Nigeria, among others, in the decades after independence are the root causes of non-linearities observed, which have also led to the subsequent recent economic recession in Nigeria.
  • Autores: Gil Alaña, Luis Alberiko; Dadgar, Y. (Autor de correspondencia); Nazari, R.
    Revista: JOURNAL OF ECONOMICS AND FINANCE
    ISSN: 1055-0925 Vol.43 2019 págs. 398 - 408
    Resumen
    This paper investigates the behavior of the inflation rate in Iran for the time period 1992¿2017 using fractional integration. The results indicate an extremely large degree of persistence in the series, with an order of integration of about 2. The consequences of such a degree of dependence are examined in the paper along with some suggestions to reduce it in the future.
  • Autores: Monge Moreno, Manuel Ángel (Autor de correspondencia); Gil Alaña, Luis Alberiko
    Revista: ENERGY
    ISSN: 0360-5442 Vol.169 2019 págs. 489 - 495
    Resumen
    This paper deals with the analysis of persistence in the prices of two technologically important metals, namely, lithium and cobalt. Along with them, we also examine four additional series corresponding to World, European, US and Japanese automobiles and component indices. For this purpose, we use long memory techniques based on fractional integration and cointegration. The results indicate that all the series are highly persistent, though we do not find any evidence supporting long run equilibrium relationships between the variables examined. (C) 2018 Elsevier Ltd. All rights reserved.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia); Gupta, R.
    Revista: MANCHESTER SCHOOL
    ISSN: 1463-6786 Vol.87 N° 1 2019 págs. 24 - 36
    Resumen
    This study examines inflation over one century of data for 29 countries based on fractional integration incorporating nonlinearities to account for structural breaks and asymmetry in the process of inflation. The results suggest that the degree of persistence is that, while there is evidence of long-memory behavior in the inflation rates of 17 countries, barring Russia, none of the remaining 28 countries indicate evidence of unit roots. The result implies that monetary authorities in these countries can play a role in controlling inflation, though the extent of intervention required will tend to vary, with the strongest being in Russia.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia); Dettoni, R.; Costamagna, R.; et al.
    Revista: RESEARCH IN INTERNATIONAL BUSINESS AND FINANCE
    ISSN: 0275-5319 Vol.49 2019 págs. 269 - 281
    Resumen
    In this paper we study the presence of rational bubbles in the IGP and IAR real housing stock indexes of Chile during the period 2003:01 to 2016:03 using a methodology based on fractionally integrated and cointegrated processes. Our findings suggest strong evidence in favour of bubbles in the Chilean housing stock market when no breaks are taken into account. Testing for structural breaks, three break dates are detected at 2007, 2011 and 2014, and the same evidence in favour of bubbles holds. This can be explained by the high level of debt of the Chilean people.
  • Autores: Bajo Buenestado, Raúl (Autor de correspondencia); Kinateder, Markus
    Revista: ECONOMICS LETTERS
    ISSN: 0165-1765 Vol.177 2019 págs. 43 - 46
    Resumen
    We formally show that lump-sum participation fees and per-interaction fees charged by a monopoly platform in a two-sided market are not interchangeable in the presence of price distortions, such as ad valorem taxes. (C) 2019 Elsevier B.V. All rights reserved.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia); Lafuente, C.
    Revista: CLIMATE RESEARCH
    ISSN: 0936-577X Vol.79 N° 1 2019 págs. 55 - 62
    Resumen
    This paper deals with the analysis of time trends for European average temperature anomalies for the period from 1655 to 2017 using a dataset based on the Central England Temperatures (CET) and other meteorological stations. The reason for this study is to determine first if long memory is present in the data, and then to estimate the time trends in a more rigorous way. The results indicate that the series display long memory behavior. Based on this and using recursive methods, we show that the time trend becomes statistically significant when the data from 2010 onwards is incorporated, indicating the importance of the last few years in the evidence for warming. It should be noted, however, that this last result may be a consequence of the statistical method employed and should, therefore, be treated with caution.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia); Figueiredo, O. H. D.; Wanke, P.
    Revista: TOURISM MANAGEMENT
    ISSN: 0261-5177 Vol.74 2019 págs. 207 - 211
    Resumen
    This paper analyzes the structural pattern of Brazilian monthly tourism revenue over the course of 20 years. This research contributes to the literature on the benefits of sports mega-events by showing that in developing countries the benefits derived from them may be jeopardized by economic structural problems reflected in currency fluctuation. Policy implications in terms of a specific tourism exchange rate for developing countries that host mega sport events are derived.
  • Autores: Cárcel Villanova, Héctor; Gil Alaña, Luis Alberiko (Autor de correspondencia); Wanke, P.
    Revista: APPLIED ECONOMICS LETTERS
    ISSN: 1350-4851 Vol.25 N° 13 2018 págs. 941 - 944
    Resumen
    This article examines the relationship between selected monetary aggregates and inflation and output in Brazil. Impulse responses under VAR and local projections were used to discover the leading or lagging role of the monetary aggregates. In addition, the information provided by the monetary aggregates as predictors of output and inflation was examined. This was assessed by examining their predictive power for subsequent observations on an in-sample basis. Overall, the results indicate that in order to control inflation rates, Brazilian authorities should focus on restricting money supply rather than increasing interest rates.
  • Autores: Almås, I.; Armand, Alex; Attanasio, O.; et al.
    Revista: ECONOMIC JOURNAL
    ISSN: 0013-0133 Vol.128 N° 612 2018 págs. F609 - F639
    Resumen
    This paper studies how targeted cash transfers to women affect their empowerment. We use a novel identification strategy to measure women's willingness to pay to receive cash transfers instead of their partner receiving it. We apply this among women living in poor households in urban Macedonia. We match experimental data with a unique policy intervention (CCT) in Macedonia offering poor households cash transfers conditional on having their children attending secondary school. The program randomized whether the transfer was offered to household heads or mothers at municipality level, providing us with an exogenous source of variation in (offered) transfers. We show that women who were offered the transfer reveal a lower willingness to pay, and we show that this is in line with theoretical predictions.
  • Autores: Monge, M. (Autor de correspondencia); Gil Alaña, Luis Alberiko
    Revista: ENERGY SOURCES. PART B. ECONOMICS, PLANNING, AND POLICY
    ISSN: 1556-7249 Vol.13 N° 9-10 2018 págs. 392 - 403
    Resumen
    Is lithium affecting the US oil and gas industry strategies? Lithium has an increasingly strategic role as clean technologies emerge, affecting the strategies of oil and gas companies in response to energy trends. This paper contributes to this literature, studying the dynamics of lithium industry and mergers and acquisitions in the US oil and gas industry in time-frequency domain. Methodologies based on continuous wavelet transform and vector autoregression models are used, and the results indicate that both time series are correlated in the long term, where mergers and acquisitions' US oil and gas industry dependence on lithium industry has increased, starting in the early 2014 until the end of the sample. Evidence of causality is not found between both time series.
  • Autores: Boateng, A.; Lesoana, M.; Siweya, H.; et al.
    Revista: JOURNAL OF DEVELOPING AREAS
    ISSN: 0022-037X Vol.52 N° 1 2018 págs. 157 - 168
    Resumen
    Keeping a low steady rate of inflation is one of the government¿s most important responsibilities. Inflation is an important determinant of economic growth. Consequently, it has been one of the most examined areas in economics, from both theoretical and empirical perspectives. Indeed, economists have shown continued interest in this essential economic variable. The most important question related to inflation is: Does non-linearity exist in inflation? The answer to this question, which has important policy implications, can support or endanger the validity of several important economic models. Hence, a clear understanding of the changing aspects of inflation is crucial to any economy because it is regarded as a significant variable in a number of economic models, whose legitimacy critically relies on whether or not this variable is stationary. In practice, many economic time series models rely on linearity. Nonetheless, it has often been found that simple linear time series models regularly leave certain aspects of economic and financial data inexplicable. This paper proposes a model that combines fractional integration with non-linear deterministic terms based on the Chebyshev polynomials in time for the analysis of CPI inflation rates of Ghana and South Africa in Sub-Saharan Africa. Firstly, we tested for non-linear deterministic terms in the context of fractional integration. The estimates of the differencing parameter, d, were found to be 1.11 and 1.32, respectively for t
  • Autores: Lovcha, Y. (Autor de correspondencia); Perez-Laborda, A.; Gil Alaña, Luis Alberiko
    Revista: COMPUTATIONAL STATISTICS
    ISSN: 0943-4062 Vol.33 N° 1 2018 págs. 443 - 465
    Resumen
    This paper examines the implications of the seasonal adjustment by an ARIMA model based (AMB) approach in the context of seasonal fractional integration. According to the AMB approach, if the model identified from the data contains seasonal unit roots, the adjusted series will not be invertible that has serious implications for the posterior analysis. We show that even if the ARIMA model identified from the data contains seasonal unit roots, if the true data generating process is stationary seasonally fractionally integrated (as it is often found in economic data), the AMB seasonal adjustment produces dips in the periodogram at seasonal frequencies, but the adjusted series still can be approximated by an invertible process. We also perform a small Monte Carlo study of the log-periodogram regression with tapered data for negative seasonal fractional integration. An empirical application for the Spanish economy that illustrates our results is also carried out at the end of the article.
  • Autores: Caporale, G. M.; Gil Alaña, Luis Alberiko; Lovcha, Y.
    Revista: THE EMPIRICAL ECONOMICS LETTERS
    ISSN: 1681-8997 Vol.17 N° 5 2018 págs. 563 - 567
    Resumen
    This paper examines the PPP hypothesis analysing the behaviour of the real exchange rates vis-a-vis the US dollar for four major currencies (namely, the Canadian dollar, the euro, the Japanese yen and the British pound). An innovative approach based on fractional integration in a multivariate context is applied to annual data from 1970 to 2011. Long memory is found to characterise the Canadian dollar, the British pound and the euro, but in all four cases the results are consistent with the relative version of PPP.
  • Autores: Solarin, S. A. (Autor de correspondencia); Gil Alaña, Luis Alberiko; Al-Mulali, U.
    Revista: ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
    ISSN: 0944-1344 Vol.25 N° 18 2018 págs. 17289 - 17299
    Resumen
    In this article, we have examined the hypothesis of convergence of renewable energy consumption in 27 OECD countries. However, instead of relying on classical techniques, which are based on the dichotomy between stationarity I(0) and nonstationarity I(1), we consider a more flexible approach based on fractional integration. We employ both parametric and semiparametric techniques. Using parametric methods, evidence of convergence is found in the cases of Mexico, Switzerland and Sweden along with the USA, Portugal, the Czech Republic, South Korea and Spain, and employing semiparametric approaches, we found evidence of convergence in all these eight countries along with Australia, France, Japan, Greece, Italy and Poland. For the remaining 13 countries, even though the orders of integration of the series are smaller than one in all cases except Germany, the confidence intervals are so wide that we cannot reject the hypothesis of unit roots thus not finding support for the hypothesis of convergence.
  • Autores: Caporale, G. M. (Autor de correspondencia); Gil Alaña, Luis Alberiko; You, K. F.
    Revista: RESEARCH IN INTERNATIONAL BUSINESS AND FINANCE
    ISSN: 0275-5319 Vol.44 2018 págs. 227 - 238
    Resumen
    This paper investigates whether the RMB is in the process of replacing the US dollar as the anchor currency in nine ASEAN countries, and also the linkages between the ASEAN currencies and a regional currency unit. A long-memory (fractional integration) model allowing for endogenously determined structural breaks is estimated for these purposes (Gil-Alana, 2008). The results suggest that the ASEAN currencies are much more interlinked than previously thought, whether or not breaks are taken into account, which provides support for a regional currency index as an anchor. Moreover, incorporating a break shows that the linkages between these currencies and the RMB and the US dollar respectively are equally important, and in fact in recent years the former have become stronger than the latter. Therefore including the RMB in the regional index should be considered.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia); Skare, M.
    Revista: EMPIRICA
    ISSN: 0340-8744 Vol.45 N° 4 2018 págs. 801 - 820
    Resumen
    The disconnection between productivity and workers' compensation after 1980 is a fact not only for the U.S., Canada, Japan but also for Europe. The level of the decoupling between labor productivity and real hourly compensation is highest in the U.S. and Japan and lowest in Norway and Germany. This study investigates the great decoupling phenomena between 1950 and 2014 for eight economies with available time series data. The results should assist policy makers in developing efficient wage-setting mechanisms and help researchers in the field of wage moderation policy and the great decoupling. For this purpose we use fractional integration and cointegration techniques. Countries with stagnating minimum wages, rigid wage moderation policy and a high level of technological progress (strong total factor productivity growth) register higher wage stagnation in relation to labor productivity. Policy makers should be extremely careful when using wage moderation policy to improve a country's competitiveness and should monitor the wage stagnation behind labor productivity (great decoupling) since workers have been producing more but receiving significantly less since 1980. The great decoupling is more prominent today and it is constantly increasing not just in the U.S. and Japan but worldwide.
  • Autores: Caporale, G. M. (Autor de correspondencia); Cárcel Villanova, Héctor; Gil Alaña, Luis Alberiko
    Revista: FINANCE RESEARCH LETTERS
    ISSN: 1544-6123 Vol.24 2018 págs. 34 - 41
    Resumen
    This paper analyses the main statistical properties of the Emerging Market Bond Index (EMBI), namely long-range dependence or persistence, non-linearities, and structural breaks, in four Latin American countries (Argentina, Brazil, Mexico, Venezuela). For this purpose it uses a fractional integration framework and both parametric and semi parametric methods. The evidence based on the former is sensitive to the specification for the error terms, whilst the results from the latter are more conclusive in ruling out mean reversion. Further, non-linearities do not appear to be present. Both recursive and rolling window methods identify a number of breaks. Overall, the evidence of long-range dependence as well as breaks suggests that active policies might be necessary for achieving financial and economic stability in these countries. (C) 2017 The Authors. Published by Elsevier Inc.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia); Huijbens, E. H.
    Revista: ANNALS OF TOURISM RESEARCH
    ISSN: 0160-7383 Vol.68 2018 págs. 20 - 29
    Resumen
    This paper analyses tourism in Iceland using fractional integration and taking into account the seasonality and the degree of persistence in the data. Using annual data, the unit root hypothesis cannot be rejected, implying permanency of shocks. However using, monthly data, a break is found at 2009m7 and the orders of integration are in the interval (0, 0,5) suggesting mean reversion. The conclusion is that exogenous shocks impacting inbound tourism do not persist and tend to disappear relatively fast. The key policy implications thereof are reported at the end of the paper, critiquing the classical response to perceived slumps in inbound tourism that include marketing and promotion instead of developing infrastructure in anticipation of resumed growth in inbound tourism.
  • Autores: Caporale, G. M. (Autor de correspondencia); Gil Alaña, Luis Alberiko
    Revista: SOUTH AFRICAN JOURNAL OF ECONOMICS
    ISSN: 0038-2280 Vol.86 N° 1 2018 págs. 76 - 81
    Resumen
    This paper estimates long-memory models to analyse the stochastic behaviour of unemployment in eleven African countries (Botswana, Ethiopia, Ghana, Kenya, Malawi, Mauritius, Nigeria, Senegal, South Africa, Tanzania and Zambia) from the 1960s until 2010. The empirical results provide very strong evidence of lack of mean reversion in all series under examination. This suggests that hysteresis models are the most relevant for the African experience (not surprisingly, given the rigidities in their labour markets). Therefore in such countries shocks hitting the unemployment series will have permanent effects, and policy makers should take appropriate action to reverse the effects of negative shocks.
  • Autores: Barros, C. ; Gil Alaña, Luis Alberiko (Autor de correspondencia); Wanke, P.
    Revista: INTERNATIONAL JOURNAL OF ENERGY SECTOR MANAGEMENT
    ISSN: 1750-6220 Vol.12 N° 4 2018 págs. 566 - 580
    Resumen
    Purpose This paper aims to investigate the production of sugar cane ethanol in Brazil for the time period 1983-2016, separating the data by geographical location. Design/methodology/approach For this purpose, the authors use techniques based on the concept of fractional integration. Findings The authors show that the data corresponding to the total production is highly persistent, with an integration order smaller than 1 but close to it. In fact, the unit root hypothesis cannot be rejected implying that shocks have a permanent nature, and thus requiring policy measures to recover the level from exogenous shocks. Separating the data into two sub-regions, namely, North-Northeast and Central-South, higher levels of persistence are detected in the latter, while the former presents some evidence of mean reverting behavior, implying that shocks will disappear by themselves in the long run in the former regions. These results are obtained from all the different methods used. Originality/value The originality is based on the time series techniques used in the paper that departs from the classical methods based on unit roots and integer degrees of differentiation.
  • Autores: Gil Alaña, Luis Alberiko; Solarin, S.A.
    Revista: ATMOSPHERIC POLLUTION RESEARCH
    ISSN: 1309-1042 Vol.9 N° 1 2018 págs. 53 - 60
    Resumen
    This paper deals with the analysis of the global and per capita NOx and VOC emissions in the U.S. and the evaluation of the effectiveness of a number of environmental policies conducted by the government during the last 50 years. For this purpose we have employed fractional integration techniques, which are more flexible than other standard approaches based on the dichotomy between stationary I(0) and nonstationary I(1) behavior. Using the I(d) class of models, our results indicate first that the two NOx series display orders of integration substantially higher than 1, and though the VOC series display smaller orders, the unit root hypothesis cannot be rejected, indicating lack of mean reversion in the four series examined. Including dummy variables for each of the breaks referring to the environmental policies, the results show that the five policies investigated (at 1965, 1967, 1970, 1977 and 1990) were effective in reducing the number of emissions, being particularly important the one that was adopted in 1970.
  • Autores: Cuestas, J. C. (Autor de correspondencia); Gil Alaña, Luis Alberiko (Autor de correspondencia)
    Revista: ECONOMIC SYSTEMS
    ISSN: 0939-3625 Vol.42 N° 1 2018 págs. 164 - 173
    Resumen
    The aim of this paper is to examine the effect of oil price movements on unemployment in Central and Eastern Europe. We do this by disentangling oil prices movements by their sign and from there we analyse the separate effects of positive and negative movements of oil prices on unemployment rates, We find that, although oil prices and unemployment are not correlated very much in the short run, the effect of oil price shocks on the natural rate of unemployment goes in the same direction, so that increases or decreases in oil prices increase or decrease the natural rate of unemployment.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia); Mudida, R.
    Revista: INTERNATIONAL JOURNAL OF FINANCE AND ECONOMICS
    ISSN: 1076-9307 Vol.23 N° 2 2018 págs. 111 - 121
    Resumen
    This paper deals with the growth rate in Kenya, examining its statistical properties and investigating the factors that may explain the slow growth rates observed during the last 50years. The results show that Kenyan growth rate is unstable with non-linearities and long range dependence structures. We also investigate what might explain these features. In this regard, we conclude that the development of anomalous political institutions in Kenya in the decades after independence is the root cause that has led to subsequent weak economic institutions and macroeconomic mismanagement and the vulnerability of the Kenyan economy to domestic and external shocks.
  • Autores: Armand, Alex; Mendi Güemes, Pedro
    Revista: RESEARCH POLICY
    ISSN: 0048-7333 Vol.47 N° 7 2018 págs. 1321 - 1333
    Resumen
    The Great Recession, which began in 2008, brought about large contractions in aggregate consumption in many countries. In this research, we study the impact of heterogeneous decreases in demand on innovation investments by analyzing the evolution of innovation investments in a panel of Spanish manufacturing firms during the 2004¿2013 period. We proxy heterogeneous variation in demand with net exit rates in the productive stratum of each firm, defined as the group of firms in the same industry and size class. These net exit rates are computed considering all firms in the stratum, including firms that are determined to be non-innovative firms. To support the identification strategy, we show that exit rates do not capture idiosyncratic unobservable characteristics among innovative firms. In addition, we control for the effect of time-varying credit constraints. We find that a one standard deviation increase in exit rates is associated with reductions of 1.5% in the share of firms investing in innovation. The drop is larger for smaller firms, which also experience greater decreases in sales. Since smaller firms are most sensitive to demand drops, they are the natural candidates to be the target of policies devoted to increasing R&D activities during crises. As additional analysis, we study firms¿ perceptions of the main obstacles to innovation to find that net exit rates capture the heterogeneous variation in demand, rather than credit constraints. Finally, when analyzing the exit patterns of firms in the sample, we confirm that the net exit rate in a firm's stratum does not drive the exit of firms in our sample.
  • Autores: Rode, Martin Dieter; Pitlik, H.; Borrella Mas, Miguel Angel
    Revista: PUBLIUS
    ISSN: 0048-5950 Vol.48 N° 2 2018 págs. 161 - 190
    Resumen
    Popular and scientific contributions often call for increased regional decision-making power to manage secessionist conflict, assuming that fiscally federalized countries are less prone to disintegrate politically. From a theoretical standpoint this is not clear though, as federalism creates an institutional paradox where autonomous legislative and bureaucratic structures can potentially be used to make secessionism a viable strategy in the first place. In particular, the role of asymmetric territorial arrangements in this association is crucially underexplored at present. Using electoral data on separatist political movements from a large variety of European regions since the mid-1990s, our findings indicate that regions with comparatively higher fiscal and institutional autonomy are more prone to vote for secessionist parties. Accounting for possible endogeneity, asymmetric territorial self-governance seems to cause much stronger incentives to vote for secessionist platforms, while the association with fiscally more symmetric arrangements is surprisingly small.
  • Autores: Caporale, G. M. (Autor de correspondencia); Gil Alaña, Luis Alberiko; Plastun, A.
    Revista: FINANCE RESEARCH LETTERS
    ISSN: 1544-6123 Vol.27 2018 págs. 140 - 147
    Resumen
    This paper investigates the degree of persistence of market fear in the VIX index over the sample period 2004-2016, as well as some sub-periods. The findings indicate that its properties change over time: in normal periods it exhibits anti-persistence, whilst during crisis period the level of persistence is increasing. These results can be informative about the nature of financial bubbles and anti-bubbles, and provide evidence on whether there exist market inefficiencies that could be exploited to make abnormal profits by designing appropriate trading strategies.
  • Autores: Caporale, G. M. (Autor de correspondencia); Gil Alaña, Luis Alberiko; Plastun, A.
    Revista: RESEARCH IN INTERNATIONAL BUSINESS AND FINANCE
    ISSN: 0275-5319 Vol.46 2018 págs. 141 - 148
    Resumen
    This paper examines persistence in the cryptocurrency market. Two different long-memory methods (R/S analysis and fractional integration) are used to analyse it in the case of the four main cryptocurrencies (BitCoin, LiteCoin, Ripple, Dash) over the sample period 2013-2017. The findings indicate that this market exhibits persistence (there is a positive correlation between its past and future values), and that its degree changes over time. Such predictability represents evidence of market inefficiency: trend trading strategies can be used to generate abnormal profits in the cryptocurrency market.
  • Autores: Caporale, G. M. (Autor de correspondencia); Gil Alaña, Luis Alberiko
    Revista: ECONOMICS BULLETIN
    ISSN: 1545-2921 Vol.38 N° 1 2018 págs. 98 - 104
    Resumen
    One of the key features of unemployment rate is its persistence, normally described as hysteresis. This note applies fractional integration techniques to show that Spanish unemployment is highly persistent and exhibits asymmetric behaviour, specifically its degree of persistence is higher during recessions (when unemployment is going up) compared to expansions (when it is going down). Further work should investigate whether this is a stylised fact also in other countries exhibiting hysteresis.
  • Autores: Gil Alaña, Luis Alberiko; Payne, J. E. (Autor de correspondencia)
    Revista: ENERGY SOURCES. PART B. ECONOMICS, PLANNING, AND POLICY
    ISSN: 1556-7249 Vol.12 N° 12 2018 págs. 1066 - 1073
    Resumen
    This study applies fractional integration techniques (parametric and semi-parametric) to examine the time series behavior of US retail gasoline prices using weekly data from January 2, 1995, to May 22, 2017. The results based on both parametric and semi-parametric methods provide conflicting evidence. Using parametric methods, the orders of integration are significantly greater than 1; however, with the semi-parametric approach, there is some evidence of mean reversion (d < 1). These conflicting results could be due to the existence of structural breaks. Indeed, endogenous structural break tests indicate breaks in 2005 and 2010. The estimation of the orders of integration within each of the subsamples reveals the absence of mean reverting behavior in retail gasoline prices.
  • Autores: Bajo Buenestado, Raúl (Autor de correspondencia)
    Revista: ENERGY ECONOMICS
    ISSN: 0140-9883 Vol.75 2018 págs. 410 - 422
    Resumen
    In his seminal paper, Nunn (2007) finds that countries with good contract enforcement have a comparative advantage and, therefore, specialize in exporting goods for which relationship-specific investments are most important. We argue that this result cannot be extrapolated to all industries: there is substantial heterogeneity regarding the effect of contract enforcement on exports. In particular, we empirically demonstrate that there is a disconnection between judicial quality and exporting in relationship-specific natural resource related industries. Due to the lack of input factor mobility, for such industries, the quality of contract enforcement cannot explain the pattern of trade, but rather other factors that are widely discussed in the literature. We discuss some relevant implications of this disconnection between judicial quality and relationship-specific industries in terms of the natural resource curse and the impact of natural resources trade on economic development.
  • Autores: Payne, J. E. (Autor de correspondencia); Gil Alaña, Luis Alberiko
    Revista: TOURISM ECONOMICS
    ISSN: 1354-8166 Vol.24 N° 1 2018 págs. 41 - 50
    Resumen
    This research note examines the change in data measurement for international tourist arrivals to the United States due to the requirement that all tourists must complete the INS I-94 entry form and its impact on tourist arrivals in the aftermath of the September 2001 terrorist attacks. Using fractional integration techniques, we find that the majority of tourist arrivals from various regions around the world are mean reverting, but the degree of persistence increased in the post-September 2001 period.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia); Sauci, L.
    Revista: APPLIED ECONOMICS
    ISSN: 0003-6846 Vol.50 N° 29 2018 págs. 3148 - 3155
    Resumen
    This article examines the long-run Purchasing Power Parity (PPP) hypothesis for 12 Latin American Real Effective Exchange Rates (REERs) using fractional integration techniques. The empirical results, applying parametric approaches, provide evidence of mean reversion in the REERs in the cases of Nicaragua, Belize, Costa Rica, Guyana and Paraguay and lack of it for the remaining seven countries. Employing semiparametric methods, the evidence of mean reversion covers the following countries: Belize, the Dominican Republic, Ecuador and Mexico. Thus, only for Belize and Guyana do we obtain consistent evidence of mean reversion in the real exchange rates. At the other extreme, lack of mean reversion, and thus, lack of PPP, is obtained with both methods in Bolivia, Brazil, Colombia and Venezuela. For the remaining six countries, the results are ambiguous. The results for the PPP theory in Belize and Guyana may show the importance of promoting policies based on exchange rate flexibility and economic liberalization to reach a long-run stability scenario that leads to greater international competitiveness and lower external vulnerability.
  • Autores: Gil Alaña, Luis Alberiko; Gupta, R.; Shittu, O. I.; et al.
    Revista: PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
    ISSN: 0378-4371 Vol.511 2018 págs. 251 - 262
    Resumen
    We investigate financial market efficiency in the time series of four daily Baltic stock market indices, namely: Baltic Benchmark Gross Index (OMXBBGI), all share index of Tallin-Lithuanian (OMXT), all share index of Riga (OMXR) and all share index of Vilnius (OMXV), based on historical data from 1 January, 2000 to 22 January 2016. We use fractional integration methods to test the hypothesis of market efficiency. Realizing that long-memory estimation could be spurious in the presence of structural breaks, we identify bull and bear market phases from each of the time series. Applying the fractional integration approach, we find that the random walk hypothesis of market efficiency is generally rejected in the overall, and at two bull and one bear sub-samples of the four Baltic stock indices. The volatility at the bear markets of these stocks persists more than the volatility at the bull markets. Our results therefore provide evidence for weak form of market efficiency in the Baltic stock markets, with some exceptions. As a way of policy, the results are relevant to portfolio managers and policy makers in a number of ways. (C) 2018 Elsevier B.V. All rights reserved.
  • Autores: Gil Alaña, Luis Alberiko
    Revista: ATMOSPHERIC SCIENCE LETTERS
    ISSN: 1530-261X Vol.19 N° 4 2018 págs. e810
    Resumen
    We investigate the time trends in the maximum and minimum temperatures in the United States from 1895 to 2017 using techniques that allow for fractional integration in the detrended series. In doing so we get more accurate estimates of the trends than those obtained using standard methods that impose either stationarity I(0) or nonstationarity I(1). Our results reveal evidence of significant positive trends in both maximum and minimum temperatures, while the difference between them show a significant negative trend as a consequence of the higher increase in the minimum temperatures. Evidence of stationary long memory behavior is also found in the three series examined.
  • Autores: Gil Alaña, Luis Alberiko (Autor de correspondencia); Carcel, H.; Abakah, E. J. A.
    Revista: REVIEW OF DEVELOPMENT FINANCE
    ISSN: 1879-9337 Vol.8 N° 2 2018 págs. 96 - 105
    Resumen
    This paper uses fractional integration and cointegration for the period of January 2000-June 2018 to investigate the stochastic properties of the bilateral linkages between stock markets in Africa and selected international markets to establish if markets in Africa co-move with the rest of the world. Results from the univariate analysis show that there exists a high degree of persistence with orders of integration about 1 or higher than 1, implying that shocks to these stock markets have significant permanent effects. Concerning bivariate results and testing for cointegration, evidence of cointegration is found for Egypt and Kenya against the UK and the Europe Zone. There are some other cases where partial evidence of cointegration is found, though in general, in all cases, we observe that the degree of cointegration is very low, implying very long periods of convergence. (C) 2018 Africagrowth Institute. Production and hosting by Elsevier B.V.
  • Autores: Caporale, G. M. (Autor de correspondencia); Gil Alaña, Luis Alberiko; Plastun, A.
    Revista: COMPUTATIONAL ECONOMICS
    ISSN: 0927-7099 Vol.51 N° 4 2018 págs. 913 - 940
    Resumen
    This paper examines short-term price reactions after one-day abnormal price changes and whether they create exploitable profit opportunities in various financial markets. Statistical tests confirm the presence of overreactions and also suggest that there is an "inertia anomaly", i.e. after an overreaction day prices tend to move in the same direction for some time. A trading robot approach is then used to test two trading strategies aimed at exploiting the detected anomalies to make abnormal profits. The results suggest that a strategy based on counter-movements after overreactions does not generate profits in the FOREX and the commodity markets, but in some cases it can be profitable in the US stock market. By contrast, a strategy exploiting the "inertia anomaly" produces profits in the case of the FOREX and the commodity markets, but not in the case of the US stock market.
  • Autores: Cárcel Villanova, Héctor; Gil Alaña, Luis Alberiko (Autor de correspondencia)
    Revista: EMPIRICAL ECONOMICS
    ISSN: 0377-7332 Vol.54 N° 2 2018 págs. 547 - 565
    Resumen
    Though not working toward an imminent transition to a monetary or currency union, the Central American Monetary Council (or CMCA, from Spanish Consejo Monetario Centroamericano) serves as an institution promoting economic and financial stability among five Central American countries (Costa Rica, El Salvador, Guatemala, Honduras and Nicaragua) and the Dominican Republic. Econometric studies conducted by researchers from CMCA have mostly focused on studying inflation levels of these countries, making use of econometric tools such as VECM and cointegration. We expand the study of inflation stability in the member countries of the CMCA by adopting a long memory and fractionally integrated approach and implementing cointegration methods that have not yet been used in the study of the Central American Monetary Council. Our results first show that all the series of prices are nonstationary, with orders of integration equal to or higher than 1 in all cases. Looking at long-run equilibrium relationships among the countries, we only found strong evidence of a cointegration relationship in the case of Honduras with El Salvador. All the other vis-a-vis relationships seem to diverge in the long run. Policy implications of the results obtained are also derived in the paper.

Proyectos desde 2018

  • Título: Procesos de memoria larga. Nuevas extensiones multivariantes y sus aplicaciones en series de tiempo
    Código de expediente: PRX22/00072
    Investigador principal: LUIS ALBERIKO GIL ALAÑA.
    Financiador: MINISTERIO DE EDUCACION , CULTURA Y DEPORTE
    Convocatoria: 2023 MECD Movilidad SENIOR
    Fecha de inicio: 01-09-2023
    Fecha fin: 30-11-2023
    Importe concedido: 11.140,00€
    Otros fondos: -
  • Título: (PRX21/00254) Ayudas Movilidad 2021
    Código de expediente: PRX21/00254
    Investigador principal: LUIS ALBERIKO GIL ALAÑA.
    Financiador: MINISTERIO DE EDUCACION , CULTURA Y DEPORTE
    Convocatoria: 2021 MECD Movilidad SENIOR
    Fecha de inicio: 01-08-2022
    Fecha fin: 31-10-2022
    Importe concedido: 11.140,00€
    Otros fondos: -
  • Título: Ayuda social, incentivos y comportamiento de los hogares
    Código de expediente: PID2020-120589RA-I00
    Investigador principal: RAUL BAJO BUENESTADO.
    Financiador: AGENCIA ESTATAL DE INVESTIGACION
    Convocatoria: 2020 AEI PROYECTOS I+D+i (incluye Generación del conocimiento y Retos investigación)
    Fecha de inicio: 01-09-2021
    Fecha fin: 31-08-2024
    Importe concedido: 29.403,00€
    Otros fondos: -
  • Título: INTEGRACION FRACCIONAL: AVANCES TEORICOS Y DESARROLLOS EMPIRICOS
    Código de expediente: PID2020-113691RB-I00
    Investigador principal: LUIS ALBERIKO GIL ALAÑA.
    Financiador: AGENCIA ESTATAL DE INVESTIGACION
    Convocatoria: 2020 AEI PROYECTOS I+D+i (incluye Generación del conocimiento y Retos investigación)
    Fecha de inicio: 01-01-2021
    Fecha fin: 31-12-2023
    Importe concedido: 18.150,00€
    Otros fondos: -
  • Título: Diseño de las organizaciones y provisión de incentivos para la innovación
    Código de expediente: PGC2018-098131-B-I00
    Investigador principal: PEDRO MENDI GUEMES.
    Financiador: MINISTERIO DE CIENCIA, INNOVACIÓN Y UNIVERSIDADES
    Convocatoria: 2018 AEI - MCIU - Proyectos de Generación del Conocimiento
    Fecha de inicio: 01-01-2019
    Fecha fin: 30-09-2022
    Importe concedido: 43.439,00€
    Otros fondos: Fondos FEDER
  • Título: Integración fraccional, procesos de memoria larga y no linealidades en series de tiempo. Evidencia en los países en vías de desarrollo.
    Código de expediente: ECO2017-85503-R
    Investigador principal: LUIS ALBERIKO GIL ALAÑA.
    Financiador: MINISTERIO DE CIENCIA, INNOVACIÓN Y UNIVERSIDADES
    Convocatoria: 2017 MINECO RETOS INVESTIGACION. PROYECTOS DE I+D+i
    Fecha de inicio: 01-01-2018
    Fecha fin: 31-12-2020
    Importe concedido: 6.050,00€
    Otros fondos: Fondos FEDER
  • Título: Juan de la Cierva Formación - JM García Manglano
    Código de expediente: IJCI-2015-26327
    Investigador principal: LUIS RAVINA BOHORQUEZ.
    Financiador: MINISTERIO DE CIENCIA, INNOVACIÓN Y UNIVERSIDADES
    Convocatoria: 2015 MINECO JUAN DE LA CIERVA INCORPORACION
    Fecha de inicio: 26-06-2017
    Fecha fin: 25-06-2019
    Importe concedido: 64.000,00€
    Otros fondos: Fondos FEDER
  • Título: Estructura óptima de impuestos al consumo: estudio teórico, evaluación empírica, y diseño de políticas con implicaciones sobre la recaudación y las externalidades medioambientales
    Investigador principal: MIGUEL ANGEL BORRELLA MAS
    Financiador: FUNDACION RAMON ARECES
    Convocatoria: 2020 FD RAMÓN ARECES Ciencias Sociales
    Fecha de inicio: 23-10-2020
    Fecha fin: 22-10-2023
    Importe concedido: 36.000,00€
  • Título: Mercados eléctricos reestructurados: competencia y regulación con objetivos medioambientales y de desarrollo
    Investigador principal: RAUL BAJO BUENESTADO
    Financiador: FUNDACION RAMON ARECES
    Convocatoria: 2017 R ARECES
    Fecha de inicio: 27-10-2017
    Fecha fin: 31-03-2022
    Importe concedido: 36.000,00€