A Comparative Study on the Energy Efficiency of Provinces Based on Data Envelopment Analysis
Zhao Yanke, Yin Dong

Abstract
Energy is an important factor of production and subsistence, and is also the driving force for national economic development. Energy development and utilization, as well as the optimization and adjustment of energy structure, seems to be of great significance to the healthy development of the national economy and sustainable development particularly, in the case of higher pressure about resources and environment capacity. According to the characteristics of energy consumption, this paper built an energy efficiency evaluation model, considering the total energy consumption, the total number of employees and the depreciation of fixed assets as the investment indicators, the regional GDP and the positive environment output as the output indicators at the same time, employed a method of DEA based on relevant data of each region in 2009, and made an empirical study as well as comments on China's 26 provincial-level administrative regions’ energy efficiency situation, so as to put forward opinions and suggestions to improve energy efficiency.

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