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The nexus between environmental regulation and ecological footprint in OECD countries: empirical evidence using panel quantile regression

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Abstract

Environmental regulation is an important tool for policymakers to achieve environmental goals. To better understand the role of environmental regulation in protecting the ecosystem, this paper offers a new perspective on exploring the heterogeneous impact of environmental policy stringency on the ecological footprint in 27 OECD countries during the period 1990–2015. An advanced economic method, panel quantile regression, is conducted to deal with the non-normality and unobserved individual heterogeneity across countries. The estimation outcomes indicate that the environmental effect of policy stringency is heterogeneous along the quantiles and different between the ecological footprint of consumption and production. The beneficial role of environmental regulation in reducing consumption ecological footprint is achieved at quantiles under 80th but the harmful effect starts occurring at extreme high quantiles. In contrast, environmental policy stringency plays a consistently useful role in mitigating production ecological footprint. In addition, the results disclose that the effects of other driving factors such as international trade, energy efficiency, renewable energy, and income are heterogeneous at different quantiles of ecological footprint. These findings help explain the inconsistencies in previous empirical studies on the nexus between environmental regulation and environmental quality in OECD countries. Finally, the current study gives policymakers useful recommendations on how to strengthen the beneficial impacts of environmental policies on the ecosystem.

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Data availability

All data analyzed during this study are available and freely collected from public sources.

Notes

  1. We do not include Slovenia in the sample because the time coverage of this country is quite short, only 5 years from 2008 to 2012.

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Authors and Affiliations

Authors

Contributions

Lan Khanh Chu: conceptualization, methodology, results and discussion, data and software, supervision, review; Tung Huy Tran: introduction, literature review, conclusion.

Corresponding author

Correspondence to Lan Khanh Chu.

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The authors declare no competing interests.

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Responsible Editor: Ilhan Ozturk

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Appendices

Appendix 1

Figure 

Fig. 3
figure 3

Environmental policy stringency and ecological footprint

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Appendix 2

Table

Table 8 Countries (and time periods) in the sample

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Appendix 3

Figure 

Fig. 4
figure 4

The normal Q-Q plot

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Appendix 4

Tables

Table 9 Panel A Shapiro–Wilk test for normal data

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Table 10 Panel B Skewness/Kurtosis tests for normality

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Appendix 5

Figure 

Fig. 5
figure 5

Kernel density estimated and normal density

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Appendix 6

Table

Table 11 Cross-sectional dependence test

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Appendix 7

Table

Table 12 Unit root test

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Appendix 8

Table

Table 13 Co-integration test

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Appendix 9

Figure 

Fig. 6
figure 6

Elasticities of environmental policy stringency. Note: Red and blue lines represent the elasticities of environmental policy stringency between consumption and production ecological footprint by Canay (2011) estimation. Short dotted lines represent the elasticities of environmental policy stringency between consumption and production ecological footprint by Powell (2016) estimation

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Chu, L.K., Tran, T.H. The nexus between environmental regulation and ecological footprint in OECD countries: empirical evidence using panel quantile regression. Environ Sci Pollut Res 29, 49700–49723 (2022). https://doi.org/10.1007/s11356-022-19221-y

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  • DOI: https://doi.org/10.1007/s11356-022-19221-y

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