Abstract
We examine the causal relationship between globalisation and CO2 emissions for 25 developed economies in Asia, North America, Western Europe and Oceania using both time series and panel data techniques, spanning the annual data period of 1970–2014. Because of the presence of cross-sectional dependence in the panel, we employ Pesaran’s Journal of Applied Econometrics 22, 265–312 (2007) cross-sectional augmented panel unit root (CIPS) test to ascertain unit root properties. The Westerlund Oxford Bulletin of Economics and Statistics 69, 709–748 (2007) cointegration test is also used to ascertain the presence of a long-run association between globalisation and carbon emissions. The long-run heterogeneous panel elasticities are estimated using the Pesaran Econometrica, 74(4), 967–1012 (2006) common correlated effect mean group (CCEMG) estimator and the Eberhardt and Teal Productivity analysis in global manufacturing production (2010) augmented mean group (AMG) estimator. The causality between the variables is examined by employing the Dumitrescu and Hurlin Economic Modelling, 29, 1450–1460 (2012) and Emirmahmutoglu and Kose Economic Modelling, 28, 870–876 (2011) Granger causality tests. The empirical results reveal that globalisation increases carbon emissions, and thus, the globalisation-driven carbon emission hypothesis is valid. This empirical analysis suggests insightful policy guidelines for policy makers using ‘globalisation’ as an economic tool for better long-run environmental policy.
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It is argued that any efforts by policy makers and governments of developing and developed countries to improve the quality of the environment will not be effective enough in the long term unless and until they control for the role of globalization on the environment in the CO2 emissions function.
Environmental loss or degradation comes in various forms, including loss of a country’s landmass, the disappearance of small island nations, a widespread destruction of life and property, heavy population displacement, and statelessness.
Available at http://infographics.pbl.nl/website/globalco2-2015/
Four developed countries, USA, Japan, Germany and UK, as well as China account for 68.7% of the global investments in clean energy projects [47].
Imposing homogeneity restrictions on the parameters and cross-section independence across individual units can further mislead empirical results. To solve this issue, we apply the cross-sectional independence and slope homogeneity tests to decide the appropriate panel causality approaches proposed by Pesaran et al. [53] and Pesaran and Yamagata [54].
The Environmental Kuznets Curve (EKC) theory suggests an inverted U-shaped relationship between environmental quality and economic growth in the course of economic development. Environmental degradation first increases and then decreases as economies grow [34]. Their argument for such a finding is that after a certain level of income, concern for environmental degradation becomes more relevant, and hence, institutional quality mechanisms are put in place to reduce the environmental consequences of economic development.
More details of overall globalization index have been discussed in the subsequent section of results interpretation.
The null hypothesis is that slope coefficients (no heterogeneity) are homogenous against no homogeneity (heterogeneity).
There is no need to test for the presence or absence of cointegration between the variables, while investigating cointegration between the variables by applying the T-Y causality test.
We are thankful to the anonymous referee for highlighting that the test statistics for G t are significant at 10%, and hence should be interpreted with caution. We have only reported the bootstrapped, 400 bootstraps, p values. The asymptotic p values, not reported, are however significant at 5% for both group tests. Although asymptotically not an issue, the normalization of G α by T may cause the test to reject the null too frequently. Based on the bootstrapped p values, we end up with one rejection, for G t , at the 10% level. However, as this rejection is marginal, we choose to interpret these results as evidence in favour of cointegration between the selected variables.
The potential reason for the emergence of the feedback causal effect between the series is also explained in the result explanation of the D-H (2012) panel Granger causality model.
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Shahbaz, M., Shahzad, S.J.H., Mahalik, M.K. et al. Does Globalisation Worsen Environmental Quality in Developed Economies?. Environ Model Assess 23, 141–156 (2018). https://doi.org/10.1007/s10666-017-9574-2
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DOI: https://doi.org/10.1007/s10666-017-9574-2