Sources of energy productivity change in China during 1997-2012: A decomposition analysis based on the Luenberger productivity indicator

Ke Wang and Yi-Ming Wei

No 86, CEEP-BIT Working Papers from Center for Energy and Environmental Policy Research (CEEP), Beijing Institute of Technology

Abstract: Given that different energy inputs play different roles in production and that energy policy decision making requires an evaluation of productivity change in individual energy input to provide insight into the scope for improvement of the utilization of specific energy input, this study develops, based on the Luenberger productivity indicator and data envelopment analysis models, an aggregated specific energy productivity indicator combining the individual energy input productivity indicators that account for the contributions of each specific energy input towards energy productivity change. In addition, these indicators can be further decomposed into four factors: pure efficiency change, scale efficiency change, pure technology change, and scale of technology change. These decompositions enable a determination of which specific energy input is the driving force of energy productivity change and which of the four factors is the primary contributor of energy productivity change. An empirical analysis of China's energy productivity change over the period 1997-2012 indicates that (i) China's energy productivity growth may be overestimated if energy consumption structure is omitted; (ii) in regard to the contribution of specific energy input towards energy productivity growth, oil and electricity show positive contributions, but coal and natural gas show negative contributions; (iii) energy-specific productivity changes are mainly caused by technical changes rather than efficiency changes; (iv) the Porter Hypothesis is partially supported in China that carbon emissions control regulations may lead to energy productivity growth.

Keywords: Carbon emissions; Data envelopment analysis; Driving force; Input specific productivity indicator (search for similar items in EconPapers)
JEL-codes: Q40 Q54 (search for similar items in EconPapers)
Pages: 37 pages
Date: 2015-10-02
New Economics Papers: this item is included in nep-cna, nep-eff, nep-ene, nep-env and nep-tra
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Journal Article: Sources of energy productivity change in China during 1997–2012: A decomposition analysis based on the Luenberger productivity indicator (2016)
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