Functional sensitivity of testing the environmental Kuznets curve hypothesis
Conventional tests for the environmental Kuznets curve (EKC) hypothesis mostly apply a quadratic equation in modeling the non-linear relationship between environmental indices (such as air pollutants) and welfare measures (such as income per capita). If their inverted-U shaped pattern is empirically accepted with two significant regressors, the income per capita and its square transformation, the EKC hypothesis is supported. Using an OECD sample, this paper shows that the validity of testing the EKC hypothesis is sensitive to how we transform income non-linearly in sulfur and carbon EKC regressions. This paper carries out experiments on different powers of γ for transforming income non-linearly and concludes that only when 0<γ<1 and 1<γ<2 will the EKC regression demonstrate a testable non-linear cointegration relationship between the two air pollutants and income per capita. In the generalized EKC regressions estimated in this paper, although we find sulfur and carbon EKC patterns in the OECD sample, none of the EKC regressions using different γ is a cointegrating equation. This finding implies an inside critique to the EKC literature that failure of cointegration of the conventional EKC regression is not because of using the quadratic functional form, but because of the fundamentally spurious relationship between the trends of pollutants and income levels.
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Volume (Year): 35 (2013)
Issue (Month): 4 ()
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- Peter Pedroni, 1999.
"Critical Values for Cointegration Tests in Heterogeneous Panels with Multiple Regressors,"
Department of Economics Working Papers
2000-02, Department of Economics, Williams College.
- Pedroni, Peter, 1999. " Critical Values for Cointegration Tests in Heterogeneous Panels with Multiple Regressors," Oxford Bulletin of Economics and Statistics, Department of Economics, University of Oxford, vol. 61(0), pages 653-670, Special I.
- Pasaran, M.H. & Im, K.S. & Shin, Y., 1995.
"Testing for Unit Roots in Heterogeneous Panels,"
Cambridge Working Papers in Economics
9526, Faculty of Economics, University of Cambridge.
- Gene M. Grossman & Alan B. Krueger, 1995.
"Economic Growth and the Environment,"
The Quarterly Journal of Economics,
Oxford University Press, vol. 110(2), pages 353-377.
- Torras, Mariano & Boyce, James K., 1998. "Income, inequality, and pollution: a reassessment of the environmental Kuznets Curve," Ecological Economics, Elsevier, vol. 25(2), pages 147-160, May.
- Gene M. Grossman & Alan B. Krueger, 1991.
"Environmental Impacts of a North American Free Trade Agreement,"
NBER Working Papers
3914, National Bureau of Economic Research, Inc.
- Grossman, Gene & Krueger, Alan B, 1992. "Environmental Impacts of a North American Free Trade Agreement," CEPR Discussion Papers 644, C.E.P.R. Discussion Papers.
- Grossman, G.M & Krueger, A.B., 1991. "Environmental Impacts of a North American Free Trade Agreement," Papers 158, Princeton, Woodrow Wilson School - Public and International Affairs.
- Perman, Roger & Stern, David I., 2003.
"Evidence from panel unit root and cointegration tests that the Environmental Kuznets Curve does not exist,"
Australian Journal of Agricultural and Resource Economics,
Australian Agricultural and Resource Economics Society, vol. 47(3), September.
- Roger Perman & David I. Stern, 2003. "Evidence from panel unit root and cointegration tests that the Environmental Kuznets Curve does not exist," Australian Journal of Agricultural and Resource Economics, Australian Agricultural and Resource Economics Society, vol. 47(3), pages 325-347, 09.
- Dickey, David A & Fuller, Wayne A, 1981. "Likelihood Ratio Statistics for Autoregressive Time Series with a Unit Root," Econometrica, Econometric Society, vol. 49(4), pages 1057-1072, June.
- Galeotti, Marzio & Lanza, Alessandro & Pauli, Francesco, 2006. "Reassessing the environmental Kuznets curve for CO2 emissions: A robustness exercise," Ecological Economics, Elsevier, vol. 57(1), pages 152-163, April.
- Panayotou, Theodore, 1997. "Demystifying the environmental Kuznets curve: turning a black box into a policy tool," Environment and Development Economics, Cambridge University Press, vol. 2(04), pages 465-484, November.
- Shafik, Nemat & Bandyopadhyay, Sushenjit, 1992. "Economic growth and environmental quality : time series and cross-country evidence," Policy Research Working Paper Series 904, The World Bank.
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