FEEM working papers "Note di lavoro"
2021.08
Date: 26/3/2021

The Role of Education and Income Inequality on Environmental Quality. A Panel Data Analysis of the EKC Hypothesis on OECD Countries


Authors:

Paolo Maranzano (University of Milano-Bicocca); Joao Paulo Cerdeira Bento (University of Aveiro); Matteo Manera (University of Milano-Bicocca, Fondazione Eni Enrico Mattei)

JEL n.: Q56, I24, I25, C51, C52, O15, O44
Keywords: Pollution-Income, Environmental Kunzets Curve, Education, Income-Inequality, Panel Data, Clustering

Abstract

We study the impact of human capital and the level of education on the pollution-income relationship controlling for income inequality in 17 OECD countries. By applying an innovative approach to country grouping, based on the temporal evolution of income inequality and clustering techniques to feature the annual value of the Gini Index on disposable income from 1987 to 2015, we have estimated panel data models by distinguishing between low and high levels of income inequality country clusters. Robustness checks and endogeneity tests are further performed considering as the discriminant factor the income inequality affecting the countries in the sample. The findings highlight the role of the educational level and years of schooling in validating the EKC hypothesis. We recommend that this variable should not be neglected in future EKC studies. Therefore, any EKC theory should also acknowledge a new EKC model specification that we named the Educational EKC.

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Suggested citation: P. Maranzano, J. P. Cerdeira Bento, M. Manera, (2021), 'The Role of Education and Income Inequality on Environmental Quality. A Panel Data Analysis of the EKC Hypothesis on OECD', Nota di Lavoro 8.2021, Milano, Italy: Fondazione Eni Enrico Mattei

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The Role of Education and Income Inequality on Environmental Quality. A Panel Data Analysis of the EKC Hypothesis on OECD Countries

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