Endogeneity and nonlinearity in the environmental Kuznets curve: A control function approach

This study investigates the existence and shape of an environmental Kuznets curve (EKC) across 16 developed countries and 58 developing countries during the period 1995-2010. The basic model of the EKC is a polynomial equation of real GDP per capita. The EKC model estimated for CO2 emission per capi...

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Main Authors: Caglayan-Akay Ebru, Kangalli-Uyar Sinem Guler
Format: Article
Language:English
Published: Economists' Association of Vojvodina 2021-01-01
Series:Panoeconomicus
Subjects:
Online Access:http://www.doiserbia.nb.rs/img/doi/1452-595X/2021/1452-595X1900012C.pdf
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author Caglayan-Akay Ebru
Kangalli-Uyar Sinem Guler
author_facet Caglayan-Akay Ebru
Kangalli-Uyar Sinem Guler
author_sort Caglayan-Akay Ebru
collection DOAJ
description This study investigates the existence and shape of an environmental Kuznets curve (EKC) across 16 developed countries and 58 developing countries during the period 1995-2010. The basic model of the EKC is a polynomial equation of real GDP per capita. The EKC model estimated for CO2 emission per capita was extended by using control variables, such as trade, urban population, fossil fuel consumption, and service sector. Based on the nonparametric test of poolability of Badi H. Baltagi, Javier Hidalgo, and Qi Li (1996), the relationship was found to have structural stability. A nonparametric pooled regression model was constructed, which allowed functional form flexibility and considered the endogeneity problem often emphasized in the EKC literature. The estimation results show the nonexistence of an EKC for both groups. The study also indicates the existence of nonlinearity and heterogeneity in the relationships between CO2 emission and the control variables across both groups.
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spelling doaj.art-275d7cc52a224cffa5cb1e3448b911de2022-12-21T21:24:46ZengEconomists' Association of VojvodinaPanoeconomicus1452-595X2217-23862021-01-0168455557610.2298/PAN171009012C1452-595X1900012CEndogeneity and nonlinearity in the environmental Kuznets curve: A control function approachCaglayan-Akay Ebru0Kangalli-Uyar Sinem Guler1Marmara University, Faculty of Economics, Department of Econometrics, Istanbul, TurkeyPamukkale University, Faculty of Economics and Administrative Sciences, Department of Econometrics, Denizli, TurkeyThis study investigates the existence and shape of an environmental Kuznets curve (EKC) across 16 developed countries and 58 developing countries during the period 1995-2010. The basic model of the EKC is a polynomial equation of real GDP per capita. The EKC model estimated for CO2 emission per capita was extended by using control variables, such as trade, urban population, fossil fuel consumption, and service sector. Based on the nonparametric test of poolability of Badi H. Baltagi, Javier Hidalgo, and Qi Li (1996), the relationship was found to have structural stability. A nonparametric pooled regression model was constructed, which allowed functional form flexibility and considered the endogeneity problem often emphasized in the EKC literature. The estimation results show the nonexistence of an EKC for both groups. The study also indicates the existence of nonlinearity and heterogeneity in the relationships between CO2 emission and the control variables across both groups.http://www.doiserbia.nb.rs/img/doi/1452-595X/2021/1452-595X1900012C.pdfenvironmental kuznets curveco2 emissionsnonparametric modelsendogeneitycontrol function approach
spellingShingle Caglayan-Akay Ebru
Kangalli-Uyar Sinem Guler
Endogeneity and nonlinearity in the environmental Kuznets curve: A control function approach
Panoeconomicus
environmental kuznets curve
co2 emissions
nonparametric models
endogeneity
control function approach
title Endogeneity and nonlinearity in the environmental Kuznets curve: A control function approach
title_full Endogeneity and nonlinearity in the environmental Kuznets curve: A control function approach
title_fullStr Endogeneity and nonlinearity in the environmental Kuznets curve: A control function approach
title_full_unstemmed Endogeneity and nonlinearity in the environmental Kuznets curve: A control function approach
title_short Endogeneity and nonlinearity in the environmental Kuznets curve: A control function approach
title_sort endogeneity and nonlinearity in the environmental kuznets curve a control function approach
topic environmental kuznets curve
co2 emissions
nonparametric models
endogeneity
control function approach
url http://www.doiserbia.nb.rs/img/doi/1452-595X/2021/1452-595X1900012C.pdf
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