关键词: 西部地区 , 生态效率 , DEA模型 , Malmquist指数

Abstract: This paper evaluated the eco-efficiency based on DEA model and Malmquist productivity index based on the data of western China's provinces from 2000 to 2010. The results showed as follows:the average value of eco-efficiency was less than 1 since the west development, which did not reach the most effective production frontier, but the whole eco-efficiency increased with fluctuations cross periods; there were the striking differences among provinces from two respects of efficiency and redundancy rate; such pollutants as waste gas, industrial waste water and solid wastes and such natural resources as energy were major factors influencing the eco-efficiency; the promotion of western eco-efficiency was mainly due to the contribution of technological advance, however, the contribution of technical efficiency was insignificant and the contribution of scale efficiency was negative. Finally, this paper pointed out the policy implications on the basis of the empirical conclusions.

Key words: western China , eco-efficiency , DEA model , Malmquist productivity index