An International Comparison of Carbon Dioxide Emission Performance Using the Nonparametric Metafrontier Approach
Qunwei Wang1,3, Peng Zhou3, Shilong Ge2,3, Zengyao Zhao1
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1School of Business, Soochow University, 50 Donghuan Road, Suzhou 215021, China
2College of Management Science and Engineering, Nanjing University of Finance and Economics,
3 Wenyuan Road, Nanjing 210046, China
3Research Center for Soft Energy Science, Nanjing University of Aeronautics and Astronautics,
29 Jiangjun Avenue, Nanjing 211106, China
Pol. J. Environ. Stud. 2014;23(3):923-931
Cross-country assessment of carbon dioxide (CO2) emission performance provides quantitative information for determining the responsibility of various countries in reducing global CO2 emissions. This paper proposes a nonparametric metafrontier approach to evaluating the CO2 emission performance of 49 major emitting countries. It has been found that the CO2 emission performance of different countries shows a large discrepancy and the performance level of the group frontier is higher than that of the metafrontier. These countries can be divided into three categories based on their performance levels of group frontier and metafrontier. American’s CO2 emission performance is closest to the best practice of world countries. Although Asia is still further from the efficient frontier and its CO2 reduction potential is the highest, the gap has narrowed over time. The technology gap of the sample countries in CO2 emission performance has experienced two stages of decrease and increase.
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