Dış Ticaret Bölümü Yayın Koleksiyonu
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Browsing Dış Ticaret Bölümü Yayın Koleksiyonu by Author "230528"
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Article Citation Count: Yaşar, Nermin (2020). "Stationarity properties of renewable energy consumption in the commonwealth of independent states", International Journal of Energy Economics and Policy, Vol. 10, No. 1, pp. 155-159.Stationarity properties of renewable energy consumption in the commonwealth of independent states(2020) Yaşar, Nermin; 230528This study investigates the stochastic properties of renewable energy consumption series across 11 Commonwealth of Independent States countries through the period of 1990-2015. For this purpose, along with traditional stationarity analysis recently improved unit root techniques which allows for nonlinear adjustments in the data generating process are used in this paper. Based on our findings we may conclude that, consideration of nonlinearity in regression process causes to more frequent non rejection of the null hypothesis of stationarity. It implies that ignoring possible nonlinearities in time series regression process may lead to some misleading results. Hereby, fluctuations in global energy supply and trade systems influence renewable energy consumption in nonlinear pattern and policy-makers should take it into consideration in terms of proper energy policy implication.Article Citation Count: Yasar, N. (2021). "Stochastic Pattern of Health Care Spending: Evidence from Nonlinear Panel Data Analysis", Review of Economics and Finance, Vol.19, pp.264-270.Stochastic Pattern of Health Care Spending: Evidence from Nonlinear Panel Data Analysis(2021) Yasar, Nermin; 230528This paper analyses the stochastic pattern of health care spending for 188 countries around the world which are categorized into four groups based on the World Bank income categories. The main motivation of this ar-ticle is to evaluate whether the stochastic features of total health care expenditure varies if decomposed into private and public health care consumption. To achieve this goal, in addition to conventional empirical methods, latterly de-veloped panel stationarity approaches are employed for both linear and nonlinear regression processes. Our results demonstrate that allowing for cross-section dependency between series and nonlinearity in the estimation process may lead to more often rejection of the null hypothesis of unit root for all series in panel data set.Article Citation Count: Yaşar, Nermin (2021). "The Causal Relationship Between Foreign Debt and Economic Growth: Evidence from Commonwealth Independent States", Foreign Trade Review, Vol. 56, No. 4, pp. 415-429.The Causal Relationship Between Foreign Debt and Economic Growth: Evidence from Commonwealth Independent States(2021) Yaşar, Nermin; 230528This study investigates the relationship between external borrowing and economic growth in the Commonwealth Independent States during the period 1995–2018. Autoregressive distributed lag (ARDL) model is employed to determine the co-integration relationship among the series and then vector error correction model (VECM) is used to analyse the causality between external debt and income. The obtained results suggest that there is a negative long-term unidirectional causal relationship running from external debt to GDP presenting a strong evidence of existence of debt overhang hypothesis. The possible reasons for this unidirectional causal relationship can be explained by poor management of provided financial resources and incomplete governance in economic transition process along with structural rigidities and immature institutions in these countries which, in the long term, resulted in insufficient capital charged to service external debt. The policymakers in these post-Soviet countries should not use foreign loans to capitalise the deficits in the economies; instead, they should be more determined in employing these funds in the areas that will create national value-added production and, thus, future income. JEL Classification: C10, F34, H63.Book Part Citation Count: The goal of achieving a single European market for electricity has been one of the main objectives for European countries since the “Single European Act” of 1988. The main purpose of this study is to examine whether the aim of unified electricity market has been achieved in terms of the convergence of electricity prices. Β-Convergence and s-convergence tests, are applied for 12 European Union states electricity price data through the period of 2003-2017. For this reason, along with conventional applied techniques, recently improved unit root tests are implemented for both linear and nonlinear data generating processes. The results suggest that convergence did not occur for most of the considered countries.The convergence of electricity prices for european union countries(2020) Telatar, M. Erdinç; Yaşar, Nermin; 230528The goal of achieving a single European market for electricity has been one of the main objectives for European countries since the “Single European Act” of 1988. The main purpose of this study is to examine whether the aim of unified electricity market has been achieved in terms of the convergence of electricity prices. Β-Convergence and s-convergence tests, are applied for 12 European Union states electricity price data through the period of 2003-2017. For this reason, along with conventional applied techniques, recently improved unit root tests are implemented for both linear and nonlinear data generating processes. The results suggest that convergence did not occur for most of the considered countries.Article Citation Count: Yaşar, Nermin (2017). "The relationship between energy consumption and economic growth: Evidence from different income country groups", International Journal of Energy Economics and Policy, Vol. 7, No. 2, pp. 86-97.The relationship between energy consumption and economic growth: Evidence from different income country groups(2017) Yaşar, Nermin; 230528This study analyses the relationship between energy consumption and economic growth for 119 countries during the period of 1970-2015, classified into four groups regarding to the World Bank income ranking. The main motivation of this study is to analyze whether the causal relationship differs between different income groups of countries. For this purpose, panel auto regressive distributed lag boundary approach and Granger causality test were used. The results of the study indicate that the causal relationship between energy use and economic growth differs depending on which income group country belongs to. We conclude that the feedback hypothesis is supported for upper-middle income group in the long run and high-income group, while conservation hypothesis is supported for upper-middle income group in the short run and lower-middle income group in the long run. Finally, neutrality hypothesis is supported for low and lower middle-income groups in the short run.Book Part Citation Count: Yaşar, Nermin; Telatar, M.E. (2018). "The relationship between foreign direct investment and CO 2 emissions across a panel of countries", Energy Economy, Finance and Geostrategy, pp. 157-169.The relationship between foreign direct investment and CO 2 emissions across a panel of countries(2018) Yaşar, Nermin; Telatar, M.E.; 230528This paper analyses the relationship between foreign direct investment inflows and pollution emissions for 139 countries during the period of 1970-2015 and the countries are classified into four groups regarding to the World Bank income ranking. The main motivation of this study is to analyse, whether the causal relationship differs between different income groups. For this purpose, panel ARDL (Auto Regressive Distributed Lag) boundary approach and Granger causality test are used. The results of the study indicate that the causal relationship between FDI (Foreign Direct Investment) and CO 2 emissions differs depending on which income group country belongs to. We conclude that, while there is not statistically significant short-run causality relationship running from FDI to CO 2 emission for high income, upper middle income and low income group countries, the pollution haven hypothesis is supported for lower middle income group countries.Article Citation Count: Yaşar Başkaraağaç, Nermin (2014). "The Stochastic Futures of the Natural Gas Prices: Russian Federation in Caspian Region", Vol.1, No.2, pp.8-16.The Stochastic Futures of the Natural Gas Prices: Russian Federation in Caspian Region(2014) Yaşar Başkaraağaç, Nermin; 230528This study examines the convergence hypothesis of natural gas price series of Russian Federation and USA using both linear and nonlinear time series techniques Russian Federation and USA during the period of 1991-2011. Although the linear Augmented Dickey Fuller (ADF), Philips Perron (PP), test provide evidence of the existence of a unit root, which means that the series are nonstationary, KPSS test result support the null hypothesis of existence of the stationary series. A nonlinear test as an alternative approach to investigate whether there are nonlinearities in the series is also taken into consideration. KSS, the nonlinear testing procedure provide some supportive evidence of a nonlinear price convergence among the Russian Federation and USA.
