Journal
JOURNAL OF ECONOMIC STUDIES
Volume 46, Issue 1, Pages 106-168Publisher
EMERALD GROUP PUBLISHING LTD
DOI: 10.1108/JES-09-2017-0249
Keywords
Economic growth; Carbon emissions; Environmental Kuznets curve
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Purpose The purpose of this paper is to provide a survey of the empirical literature on environmental Kuznets curve (EKC) estimation of carbon dioxide (CO2) emissions over the period of 1991-2017. Design/methodology/approach This survey categorizes the studies on the basis of power of income in empirical models of EKC. It has been hypothesized that the EKC shows an inverted U-shaped association between economic growth and CO2 emissions. Findings For all the contexts, the results of EKC estimation for CO2 emissions are inconclusive in nature. The reasons behind this discrepancy can be attributed to the choice of contexts, time period, explanatory variables, and methodological adaptation. Research limitations/implications The future studies in this context should not only consider new set of variables (e.g. corruption index, social indicators, political scenario, energy research and development expenditures, foreign capital inflows, happiness, population education structure, public investment toward alternate energy exploration, etc.), but also the data set should be refined, so that the EKC estimation issues raised by Stern (2004) can be addressed. Originality/value By far, no study in the literature of ecological economics has focused on the empirical estimation of EKC for CO2 emissions. This particular context has been used for this study, as CO2 is one of the highest studied pollutants in the ecological economics, and especially within the EKC hypothesis framework.
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