‘What's your shape?’ A data-driven approach to estimating the Environmental Kuznets Curve

Antonio Francesco Gravina and Matteo Lanzafame

Energy Economics, 2025, vol. 148, issue C

Abstract: The substantial literature on the existence of an inverted U-shaped relationship between environmental degradation and economic growth—the so-called Environmental Kuznets Curve (EKC)—has produced very mixed evidence. This largely depends on model and variable selection uncertainty. We address these issues relying on Bayesian Model Averaging techniques. Our results indicate that the EKC has an inverted-N shape, with almost all emerging economies on the upward segment of the curve displaying a positive association between per-capita GDP and CO2 emissions, and most advanced economies on the second downward segment of the curve. These findings are robust to the use of different measures of environmental pollution and (non-Bayesian) LASSO regression techniques.

Keywords: Environmental Kuznets Curve; Economic growth; Model uncertainty (search for similar items in EconPapers)
JEL-codes: C52 O13 Q56 (search for similar items in EconPapers)
Date: 2025
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Working Paper: “What’s Your Shape?” A Data-Driven Approach to Estimating the Environmental Kuznets Curve (2024)
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Persistent link: https://EconPapers.repec.org/RePEc:eee:eneeco:v:148:y:2025:i:c:s0140988325004761

DOI: 10.1016/j.eneco.2025.108649

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