Journal
MATHEMATICAL AND COMPUTER MODELLING
Volume 58, Issue 5-6, Pages 1068-1073Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.mcm.2012.05.003
Keywords
CO2 emission performance; Malmquist index; Metafrontier function; Undesirable output
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Funding
- Young Teacher Foundation of Soochow University [BV11000611]
- National Social Science Fund Project of China [10BGL066]
- Project of China's Soft Science Plan [2010GXS5D228]
- Project of Science AMP
- Technology Plan of Shandong Province of China [2008RKA086, 2009GG10010003]
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Considering carbon dioxide (CO2) emitters in different groups that may not have the same technology, this paper extends the Malmquist emission performance index (MCPI) for measuring changes in CO2 emission performance using a nonparametric metafrontier. The MCPI can be decomposed into two components: efficiency change index and technological change index. Meanwhile, the interrelationships between two MCPIs, relative to the metafrontier and the group frontier respectively, are also examined by the key factor, technology gap ratio (TGR). (c) 2012 Elsevier Ltd. All rights reserved.
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