基于Malmquist分析的中国玉米生产率增长及收敛性研究

Research the Corn Production Efficiency of China Based on Malmquist Model and Astringency

玉米是中国的主要粮食作物之一,本文使用省级农产品成本收益面板数据,运用DEA的Malmquist指数分析方法,实证分析了中国玉米生产率(TFP)增长状况。结果显示,1990～2004年中国玉米TFP的平均增长率为3.7%,呈现U形增长趋势。在此基础上,进一步分析了中国玉米生产TFP指数的收敛性,以此来衡量中国玉米生产发展水平及其变化状况,考察中国玉米生产发展地区差距的变化趋势。

Corn is one of three main food of our country. This article use province farm produce cost and income panel dates and Malmquist index method of DEA, analysis the total factor productive＇changing . The outcome idicates that the TFPaverage increase of Chnia is 3. 7 % in 1990 1 2004, and present ＂ U＂ shape developing trend. And then analysis corn TFP astringency ,to describe corn TFP developing level and changing ,analysis regional difference changing direction.