西部地区农业生产效率的DEA分析

Analysis on Agricultural Productive Efficiency in West China——DEA Method

本文利用DEA方法分析了西部地区县域层面上农业生产的效率,包括规模效率、技术效率及全要素生产率的变化;并分析了规模效率、技术效率及全要素生产率与农业可持续性的关系。本文认为西部地区农业生产如果依靠外界投入,产生规模效益时,将导致农业可持续性的下降,而规模效率递减的情况下,将有助于农业可持续性的增强。也就是说,对外界依赖越少,农业的可持续性就增强,相反,农业可持续性则下降。西部地区农业生产技术的应用,对增强西部地区农业可持续性是有效的。西部地区越来越多的县(市)农业可持续性是增强的。

This paper analyzes the agricultural productive efficiency of West China,including scale efficiency,technical efficiency and total factors efficiency,at the county level by DEA method,and the relationship between them and agricultural sustainability.The results indicate that if the scale efficiency of agricultural production depends on outside inputs in West China,the agricultural sustainability decreases.On the contrary,the decrease of scale efficiency will improve the agricultural sustainability.That is to say,if the less dependence on outside inputs,the more of agricultural sustainability.The application of agricultural productive technology is effective in improving the agricultural sustainability.In more and more counties,the agricultural sustainability is improved.