Environmental Kuznets Curve: Tipping Points, Uncertainty and Weak Identification

We consider an empirical estimation of the Environmental Kuznets Curve (EKC) for carbon dioxide and sulphur, with a focus on confidence set estimation of the tipping point. Various econometric – parametric and nonparametric – methods are considered, reflecting the implications of persistence, endogeneity, the necessity of breaking down our panel regionally, and the small number of countries within each panel. In particular, we propose an inference method that corrects for potential weak-identification of the tipping point. Weak identification may occur if the true EKC is linear while a quadratic income term is nevertheless imposed into the estimated equation. Relevant literature to date confirms that non-linearity of the EKC is indeed not granted, which provides the motivation for our work. Viewed collectively, our results confirm an inverted U-shaped EKC in the OECD countries but generally not elsewhere, although a local-pollutant analysis suggest favorable exceptions beyond the OECD. Our measures of uncertainty confirm that it is difficult to identify economically plausible tipping points. Policy-relevant estimates of the tipping point can nevertheless be recovered from a local-pollutant long-run or non-parametric perspective.

[1]  Edward B. Barbier,et al.  Economic growth and environmental degradation: The environmental Kuznets curve and sustainable development , 1996 .

[2]  M. Wagner,et al.  The Carbon Kuznets Curve: A Cloudy Picture Emitted by Bad Econometrics? , 2008 .

[3]  Gary O. Zerbe,et al.  On multivariate confidence regions and simultaneous confidence limits for ratios , 1982 .

[4]  Marie-Claude Beaulieu,et al.  Identification-Robust Estimation and Testing of the Zero-Beta CAPM , 2011 .

[5]  Roger Perman,et al.  Evidence from Panel Unit Root and Cointegration Tests that the Environmental Kuznets Curve Does Not Exist , 2003 .

[6]  Matthew A. Cole,et al.  The environmental Kuznets curve: an empirical analysis , 1997, Environment and Development Economics.

[7]  J. Kiviet,et al.  The Effects of Dynamic Feedbacks on Ls and Mm Estimator Accuracy in Panel Data Models , 2002 .

[8]  Jordi Roca,et al.  Do individual preferences explain the Environmental Kuznets curve , 2003 .

[9]  Lynda Khalaf,et al.  Finite sample inference methods for dynamic energy demand models , 2007 .

[10]  E. C. Fieller The Biological Standardization of Insulin , 1940 .

[11]  M. Arellano,et al.  Some Tests of Specification for Panel Data: Monte Carlo Evidence and an Application to Employment Equations , 1991 .

[12]  Daniel L. Millimet,et al.  Effects of Environmental Regulations on Manufacturing Plant Births: Evidence from a Propensity Score Matching Estimator , 2003, Review of Economics and Statistics.

[13]  Théophile T. Azomahou,et al.  Economic Development and Co2 Emissions: A Nonparametric Panel Approach , 2006 .

[14]  M. Pesaran,et al.  Estimating Long-Run Relationships From Dynamic Heterogeneous Panels , 1995 .

[15]  Chia-Hung Sun,et al.  The environmental Kuznets curve hypothesis for water pollution: do regions matter? , 2010 .

[16]  T. Panayotou Economic Growth and the Environment , 2000 .

[17]  B. EugenioFigueroa,et al.  COUNTRY-SPECIFIC ENVIRONMENTAL KUZNETS CURVES: A RANDOM COEFFICIENT APPROACH APPLIED TO HIGH-INCOME COUNTRIES , 2009 .

[18]  D. Bolduc,et al.  Identification robust confidence set methods for inference on parameter ratios with application to discrete choice models , 2010 .

[19]  David I Stern,et al.  Global sulfur emissions from 1850 to 2000. , 2005, Chemosphere.

[20]  R. Blundell,et al.  Initial Conditions and Moment Restrictions in Dynamic Panel Data Models , 1998 .

[21]  E. C. Fieller SOME PROBLEMS IN INTERVAL ESTIMATION , 1954 .

[22]  T. Panayotou,et al.  Demystifying the environmental Kuznets curve: turning a black box into a policy tool , 1997, Environment and Development Economics.

[23]  T. Selden,et al.  Environmental Quality and Development: Is There a Kuznets Curve for Air Pollution Emissions? , 1994 .

[24]  John A. List,et al.  The Environmental Kuznets Curve: Real Progress or Misspecified Models? , 2003, Review of Economics and Statistics.

[25]  D. Stern Between estimates of the emissions-income elasticity , 2010 .

[26]  M. Hashem Pesaran,et al.  Pooled Mean Group Estimation of Dynamic Heterogeneous Panels , 1999 .

[27]  Jeffrey S. Racine,et al.  Additive Regression Splines With Irrelevant Categorical and Continuous Regressors , 2013 .

[28]  Jean-Marie Dufour,et al.  Identification, Weak Instruments, and Statistical Inference in Econometrics , 2003 .

[29]  Edward Elgar,et al.  The Economics of Nature and the Nature of Economics , 2004, Biodiversity & Conservation.

[30]  Giovanni S. F. Bruno,et al.  Estimation and Inference in Dynamic Unbalanced Panel-data Models with a Small Number of Individuals , 2005 .

[31]  R. Berrens,et al.  Economic growth and environmental quality: a meta-analysis of environmental Kuznets curve studies , 2007 .

[32]  G. MauriceJ.,et al.  Bias-corrected estimation in dynamic panel data models , 2002 .

[33]  Robert Costanza,et al.  The economics of nature and the nature of economics. , 2001 .

[34]  D. Stern The Rise and Fall of the Environmental Kuznets Curve , 2004 .

[35]  Matthew A. Cole,et al.  Trade, the pollution haven hypothesis and the environmental Kuznets curve: examining the linkages , 2004 .

[36]  J. List,et al.  The environmental Kuznets curve: does one size fit all? , 1999 .

[37]  David I. Stern,et al.  Is there an environmental Kuznets curve for sulfur , 2001 .

[38]  Jan F. Kiviet,et al.  On bias, inconsistency and efficiency of various estimators in dynamic panel data models , 1995 .

[39]  R. Kaufmann,et al.  Is there a turning point in the relationship between income and energy use and/or carbon emissions? , 2006 .

[40]  A. Levinson The Ups and Downs of the Environmental Kuznets Curve , 2001 .

[41]  Diego Romero-Ávila Questioning the empirical basis of the environmental Kuznets curve for CO2: New evidence from a panel stationarity test robust to multiple breaks and cross-dependence , 2008 .

[42]  Brisne J. V. Céspedes,et al.  Forecasting Brazilian output and its turning points in the presence of breaks: a comparison of linear and nonlinear models , 2006 .

[43]  Soumyananda Dinda,et al.  Income and Emission: A Panel Data based Cointegration Analysis , 2006 .

[44]  A. Jalil,et al.  Environment Kuznets curve for CO2 emissions: A cointegration analysis for China , 2009 .

[45]  B. Yandle,et al.  Environmental Kuznets Curves: a review of findings, methods, and policy implications. PERC Research study 02-1 update , 2004 .

[46]  Simone Valente,et al.  Growth and pollution convergence: Theory and evidence , 2011 .

[47]  B. Melenberg,et al.  Identifying reduced-form relations with panel data: The case of pollution and income , 2009 .

[48]  N. Shafik Economic Development and Environmental Quality: An Econometric Analysis , 1994 .

[49]  S. Dasgupta,et al.  Confronting the Environmental Kuznets Curve , 2002 .

[50]  Ann L. Owen,et al.  Estimating dynamic panel data models: a guide for , 1999 .

[51]  Cheng Hsiao,et al.  Formulation and estimation of dynamic models using panel data , 1982 .

[52]  Maurice J.G Bun,et al.  Bias-Corrected Estimation in Dynamic Panel Data Models , 2005 .

[53]  Jean-Marie Dufour,et al.  Some Impossibility Theorems in Econometrics with Applications to Structural and Dynamic Models , 1997 .

[54]  Qi Li,et al.  A Note on the Estimation of Simultaneous Equations with Error Components , 1992, Econometric Theory.

[55]  Soumyananda Dinda Environmental Kuznets Curve Hypothesis: A Survey , 2004 .

[56]  Peter Schmidt,et al.  GMM estimation of linear panel data models with time-varying individual effects , 2001 .

[57]  Richard T. Carson,et al.  The Environmental Kuznets Curve: Seeking Empirical Regularity and Theoretical Structure , 2010, Review of Environmental Economics and Policy.

[58]  D. Holtz-eakin,et al.  Stoking the Fires? Co2 Emissions and Economic Growth , 1992 .

[59]  Jonathan H. Wright,et al.  A Survey of Weak Instruments and Weak Identification in Generalized Method of Moments , 2002 .

[60]  H. H. Burbank The Other Transformation in Econometric Practice : Robust Tools for Inference , 2012 .

[61]  J. List,et al.  Recent Advances in Environmental Economics , 2002 .