Hakkari University, Hakkari, Turkey.
Suleyman Demirel University, Isparta, Turkey.
Environ Sci Pollut Res Int. 2020 May;27(13):14702-14710. doi: 10.1007/s11356-020-08000-2. Epub 2020 Feb 12.
Global warming is a serious problem facing the world today. To minimize it, scholars are trying to find the reasons behind increasing CO emissions. This study examines the effects of overall export product diversification, extensive margin, and intensive margin on CO emissions as indicators of environmental degradation in 84 developing countries for the period of 1971-2014 in the context of the environmental Kuznets curve (EKC) hypothesis using three estimators, namely, autoregressive distributed lag (ARDL) bounds test, dynamic ordinary least squares (DOLS), and fully modified ordinary least squares (FMOLS). The empirical findings reveal that EKC hypothesis is valid. The overall empirical findings from various approaches show that overall diversification, extensive margin, and intensive margin have a positive and significant effect on CO emissions.
全球变暖是当今世界面临的一个严重问题。为了最大限度地减少全球变暖，学者们正在努力寻找 CO2 排放不断增加的背后原因。本研究以环境库兹涅茨曲线（EKC）假说为背景，利用自回归分布滞后（ARDL）边界检验、动态普通最小二乘法（DOLS）和完全修正普通最小二乘法（FMOLS）三种估计器，考察了 1971-2014 年间 84 个发展中国家出口产品多样化、广泛边际和集约边际作为环境退化指标对 CO2 排放的影响。实证结果表明 EKC 假说成立。各种方法的总体实证结果表明，总体多样化、广泛边际和集约边际对 CO2 排放有正向和显著的影响。
