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Environmental Kuznets curve hypothesis: asymmetry analysis and robust estimation under cross-section dependence

Environmental Science and Pollution Research volume 27, pages 18685–18698 (2020)Cite this article

Abstract

In this paper, we revisit the environmental Kuznets curve (EKC) hypothesis by using estimations that account for cross-sectional dependency (CSD) and asymmetry effect in 76 countries for the period 1971–2014. Our results lend moderate support to the EKC hypothesis. The country-specific results unfold that a total of 16 out of 76 countries support the EKC hypothesis using CCEMG estimator. Results from AMG reveal that the EKC hypothesis holds in 24 out of 76 countries. It is worth highlighting that 11 countries (Australia, China, Congo Dem. Rep., Costa Rica, Gabon, Hong Kong, India, Korea, Myanmar, Turkey, and Uruguay) exhibit an inverted U-shaped curve regardless of whether CCEMG or AMG is used. The asymmetry analysis using PMG is also able to support the EKC hypothesis. We conclude that the EKC hypothesis does not fit all countries. Policy implication and recommendation in designing appropriate energy and economic policies are provided.

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Notes

  1. Given that the WDI does not provide data on CO2 emissions beyond 2014, our data period ends in 2014.

  2. For detailed and technical explanation on the CCEMG and AMG, refer to Pesaran (2006), Bond and Eberhardt (2009), Eberhardt and Teal (2010), and Atasoy (2017).

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Affiliations

  1. Faculty of Business and Finance, Universiti Tunku Abdul Rahman, Jalan Universiti, Bandar Barat, 31900, Kampar, Perak Darul Ridzuan, Malaysia

    Cheong-Fatt Ng, Chee-Keong Choong & Lin-Sea Lau

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  1. Cheong-Fatt Ng
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  2. Chee-Keong Choong
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  3. Lin-Sea Lau
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Correspondence to Cheong-Fatt Ng.

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Ng, CF., Choong, CK. & Lau, LS. Environmental Kuznets curve hypothesis: asymmetry analysis and robust estimation under cross-section dependence. Environ Sci Pollut Res 27, 18685–18698 (2020). https://doi.org/10.1007/s11356-020-08351-w

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  • DOI: https://doi.org/10.1007/s11356-020-08351-w

Keywords

  • EKC
  • Panel analysis
  • Cross-section dependence
  • Asymmetry
  • CCEMG
  • AMG
  • PMG