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The N-shaped environmental Kuznets curve: an empirical evaluation using a panel quantile regression approach
Alexandra Allard1, Johanna Takman2, Gazi Salah Uddin3
1Department of Management and Engineering, Linköping University, 581 83, Linköping, Sweden.
Abstract:
We evaluate the N-shaped environmental Kuznets curve (EKC) using panel quantile regression analysis. We investigate the relationship between CO2 emissions and GDP per capita for 74 countries over the period of 1994-2012. We include additional explanatory variables, such as renewable energy consumption, technological development, trade, and institutional quality. We find evidence for the N-shaped EKC in all income groups, except for the upper-middle-income countries. Heterogeneous characteristics are, however, observed over the N-shaped EKC. Finally, we find a negative relationship between renewable energy consumption and CO2 emissions, which highlights the importance of promoting greener energy in order to combat global warming.
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