Evaluation of energy efficiency and spatial distribution in china: based on non-separable hybrid DEA model

The increasing tension between energy supply and demand is making it difficult for China to sustain the extensive economic development pattern. The most realistic way of solving the problem lies in increasing the energy efficiency. This paper introduces a non-separable hybrid DEA model that consider...

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Bibliographic Details
Published inIOP conference series. Materials Science and Engineering Vol. 392; no. 6; pp. 62096 - 62102
Main Author Yao, Jiong
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 03.08.2018
Subjects
Economic development
Energy distribution
Energy efficiency
Low level
Pollutants
Spatial distribution
China
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Summary:The increasing tension between energy supply and demand is making it difficult for China to sustain the extensive economic development pattern. The most realistic way of solving the problem lies in increasing the energy efficiency. This paper introduces a non-separable hybrid DEA model that considers undesirable output to measure the energy efficiencies of 285 prefecture or higher-level cities in China during 2003-2016, and then analyses the spatial distribution of energy efficiencies. The results indicate that, for the investigation period, the overall energy efficiency of China with regard to pollutants remained at a low level and presented a "U-shaped" decreasing-increasing trend. To be specific, China's energy efficiency distribution presented a trend of "high in the east and low in the west". The energy efficiency of East China changed relatively gently, while the energy efficiencies of Central China and West China changed dramatically. China's energy efficiency also presented a significant spatial agglomeration effect, i.e., cities with close energy efficiencies are usually adjacent to each other.
ISSN:1757-8981
1757-899X
1757-899X
DOI:10.1088/1757-899X/392/6/062096