Journal
ECOLOGICAL MODELLING
Volume 437, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.ecolmodel.2020.109289
Keywords
Environmental Kuznets curve; environmental convergence; CO2 emissions; regressor endogeneity; semiparametric panel data model
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Existing studies disjointly addressed the environmental convergence and environmental Kuznets curve hypotheses, though these research lines are theoretically interconnected. This paper proposes a unified empirical methodology to simultaneously investigate both hypotheses, relying on a semiparametric dynamic panel data model that accounts for regressor endogeneity. The approach, when applied to CO2 emissions in 106 countries, suggests that there is no global level evidence supporting the environmental Kuznets hypothesis, while a convergence process is taking place. Our results imply that current international agreements have not been sufficiently binding to globally curb CO2 emissions, especially in high-income countries, as aimed by Sustainable Development Goals.
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