The current study re-investigates the impact of renewable and non-renewable energy consumption on Turkey’s ecological footprint. This study applies Quantile Autoregressive Lagged (QARDL) approach for the period of 1965Q1-2017Q4. We further apply Granger-causality in Quantiles to check the causal relationship among the variables. The results of QARDL show that error correction parameter is statistically significant with the expected negative sign for all quantiles which confirm an existence of significant reversion to the long-term equilibrium connection between the related variables and ecological footprint in Turkey. In particular, the outcomes suggested that renewable energy decrease ecological footprint in long-run on each quantile. However, the results of economic growth and non-renewable energy impact positively to ecological footprint in long-short run period at all quantiles. Finally, we tested the Environmental Kuznets Curve (EKC) hypothesis and the results of QARDL confirmed the EKC in Turkey. Furthermore, the findings of causal investigation from Granger-causality in quantiles evident the presence of a bi-directional causal relationship between renewable energy consumption, energy consumption and economic growth with ecological footprint in the Turkish economy.

当前的研究重新调查了可再生和不可再生能源消耗对土耳其生态足迹的影响。本研究在1965Q1-2017Q4期间采用分位数自回归滞后（QARDL）方法。我们进一步在分位数中应用格兰杰因果关系来检查变量之间的因果关系。QARDL的结果表明，对于所有分位数，误差校正参数在统计上均具有预期的负号，这确认了土耳其相关变量与生态足迹之间的长期平衡联系存在重大反转。尤其是，结果表明，从长远来看，可再生能源可减少每个分位数的生态足迹。然而，在所有分位数上，经济增长和不可再生能源的结果在长短期内都会对生态足迹产生积极影响。最后，我们测试了环境库兹涅茨曲线（EKC）假设，QARDL的结果证实了土耳其的EKC。此外，因果调查的结果来自Granger-因果关系中位数明显的可再生能源消费，能源消费与经济增长与生态足迹在土耳其经济之间的双向因果关系的存在。