General Information
    • ISSN: 1793-821X
    • Frequency: Quarterly (2013-2014); Bimonthly (Since 2015)
    • DOI: 10.18178/JOCET
    • Editor-in-Chief: Prof. Haider F. Abdul Amir
    • Executive Editor: Ms. Julia S. Ma
    • Abstracting/ Indexing: EI (INSPEC, IET), Electronic Journals Library, Chemical Abstracts Services (CAS), Ulrich's Periodicals Directory, Google Scholar, ProQuest.
    • E-mail: jocet@ejournal.net
  • Jul 03, 2017 News! JOCET Vol.4, No.5 has been indexed by EI(Inspec)!   [Click]
  • Jul 25, 2017 News! JOCET Vol. 6, No. 1 is available online now. 16 papers which cover 5 specific areas are published in this issue.   [Click]
Editor-in-chief
School of Science and Technology Universiti Malaysia Sabah, Malaysia.
I would like to express my appreciation to all authors, reviewers and edtors.
JOCET 2018 Vol.6(2): 178-182 ISSN: 1793-821X
DOI: 10.18178/JOCET.2018.6.2.456

Is There An Environmental Kuznets Curve in MENAP Countries? Quadratic and Cubic Polynomial Random Coefficient Panel Regression Model

Aynur Pala
Abstract—The paper aims to study the relationship between economic growth and CO2 emissions in MENAP countries over the period 1994 to 2011. Breusch-Pagan LM cross-sectional dependency test, CADF panel unit-root test and Westerlund panel cointegration test have been used for the estimation. Quadratic and cubic polynomial random coefficient panel regression models (RCM) were estimated using carbon emission, economic growth and energy consumption variables. Quadratic and cubic RCM models were estimated for two sub-sample individual countries, oil-exported MENAP countries and others MENAP countries. As a result of panel unit-root test, all variables are stationary in first difference. Panel cointegration test represented that there is a long term relation among carbon emission, economic growth and energy consumption variables. In oil-exported MENAP countries, quadratic random coefficient panel regression model results proved that there is U-shaped and monotonically increasing shape, cubic random coefficient panel regression model showed that there is monotonically decreasing and N-shaped. In others MENAP countries, quadratic random coefficient panel regression model results proved that there is an inverted U-shaped, cubic random coefficient panel regression model showed that there is N-shaped. Consequently, Environmental Kuznets Curve (EKC), inverted U-shape, is valid only other MENAP countries, excluding Morocco, at the quadratic model. And, EKC reformed N-shaped in cubic model in the same sub-sample.

Index Terms—Economic growth, carbon emissions, panel regression model, MENAP countries.

Aynur Pala is with Okan University, Turkey (e-mail: aynur.pala@okan.edu.tr)

[PDF]

Cite:Aynur Pala, "Is There An Environmental Kuznets Curve in MENAP Countries? Quadratic and Cubic Polynomial Random Coefficient Panel Regression Model," Journal of Clean Energy Technologies vol. 6, no. 2, pp. 178-182, 2018.

Copyright © 2008-2016. Journal of Clean Energy Technologies. All rights reserved.
E-mail: jocet@ejournal.net