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Simultaneity modeling analysis of the environmental Kuznets curve hypothesis
Journal article   Open access   Peer reviewed

Simultaneity modeling analysis of the environmental Kuznets curve hypothesis

Adel Ben Youssef, Shawkat Hammoudeh and Anis Omri
Energy economics, v 60, pp 266-274
Nov 2016
url
https://mpra.ub.uni-muenchen.de/82609/1/MPRA_paper_82609.pdfView

Abstract

Economic growth EKC hypothesis Environment Simultaneous-equation models
The environmental Kuznets curve (EKC) hypothesis has been recognized in the environmental economics literature since the 1990's. Various statistical tests have been used on time series, cross section and panel data related to single and groups of countries to validate this hypothesis. In the literature, the validation has always been conducted by using a single equation. However, since both the environment and income variables are endogenous, the estimation of a single equation model when simultaneity exists produces inconsistent and biased estimates. Therefore, we formulate simultaneous two-equation models to investigate the EKC hypothesis for fifty-six countries, using annual panel data from 1990 to 2012, with the end year is determined by data availability for the panel. To make the panel data analysis more homogeneous, we investigate this issue for a three income-based panels (namely, high-, middle-, and low-income panels) given several explanatory variables. Our results indicate that there exists a bidirectional causality between economic growth and pollution emissions in the overall panels. We also find that the relationship is nonlinear and has an inverted U-shape for all the considered panels. Policy implications are provided. •We have given a new look for the validity of the EKC hypothesis.•We formulate two-simultaneous equation models to validate this hypothesis for fifty-six countries.•We find a bidirectional causality between economic growth and pollution emissions.•We also discover an inverted U-shaped between environmental degradation and economic growth.•This relationship varies at different stages of economic development.

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UN Sustainable Development Goals (SDGs)

This publication has contributed to the advancement of the following goals:

#12 Responsible Consumption & Production
#13 Climate Action
#8 Decent Work and Economic Growth
#7 Affordable and Clean Energy
#9 Industry, Innovation and Infrastructure

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Collaboration types
Domestic collaboration
International collaboration
Web of Science research areas
Economics
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