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Predictors of carbon emissions: an empirical evidence from NAFTA countries

Abstract

This study examined the predictors of carbon emissions in member countries of the North American Free Trade Agreement (NAFTA). Panel models robust to cross-sectional dependence and slope heterogeneity were used for the study. From the heterogeneity and cross-sectional dependence tests, the studied panel was heterogeneous and cross-sectionally dependent. Also, the unit root and cointegration tests established the series to be first differenced stationary and cointegrated in the long run. Additionally, results of the CCEMG regression estimator in the whole panel affirmed economic growth (GDP) to be a significantly positive predictor of CO2 emissions, while foreign direct investments (FDI) and population growth (POP) were trivial determinants of CO2 emissions. The discoveries were however diverse in the individual countries. Finally, there was no causality between GDP and CO2 emissions and between POP and CO2 emissions. However, there was a one-way causality from CO2 emissions to FDI. Policy recommendations are further discussed.

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Abbreviations

GDP:

economic growth

POP:

population

FDI:

foreign direct investments

CO2 emissions:

carbon emissions

NRE:

non-renewable energy

EC:

energy consumption

NAFTA:

North American Free Trade Agreement

PCA:

principal components analysis

CADF:

cross-sectionally augmented Dickey-Fuller

CIPS:

cross-sectional Im, Pesaran and Shin

CD:

cross-sectional dependence

LM:

Lagrangian multiplier

VIF:

variance inflation factor

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Funding

This study was funded by the Nature Fund 2020 (Project Approval Number: 71973054)

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Correspondence to Mohammed Musah.

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Musah, M., Kong, Y. & Vo, X.V. Predictors of carbon emissions: an empirical evidence from NAFTA countries. Environ Sci Pollut Res 28, 11205–11223 (2021). https://doi.org/10.1007/s11356-020-11197-x

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  • DOI: https://doi.org/10.1007/s11356-020-11197-x

Keywords

  • Predictors
  • Carbon emissions
  • Economic growth
  • Foreign direct investments
  • Population growth
  • CCEMG regression estimator
  • NAFTA countries