我国各地区的农业生产率与收敛:1980～2005

Estimate the Agricultural Production Efficiencies and Analysis It's Convergence:1980～2005

本文用DEA方法估算了我国28个省份1980-2005年的农业生产率，分析表明：①我国农业生产率在1980～2005年间平均年增长速度为2．2%，其中技术进步率为4．2％，而相对技术效率则以1．9％的速度恶化；②1980～1989年间，农业生产率的变化较好地解释了农业生产的波动，而1990年以后，农业生产波动更多地受到生产率以外因素的影响；③从地域上看，东部地区的生产率增长率与技术进步率要快于中、西部地区。在技术效率上，中、西部地区均有不同程度的恶化；④我国农业生产率增长的主要源泉是技术进步。收敛性检验表明，我国农业生产率在总体上存在收敛趋势。

Using DEA approach, we have estimated the agricultural produc- tion efficiencies of 28 provinces during 1980 to 2005. Our analysis indicates： ①The growth of China＇s agricultural productivity effieieneies is about 2. 2%, and the technological progress about 4.2%, but the technology efficiency is worsen with the speed of 1.9% every year during 1980 to 2005; ②During 1980 to 1989, the change of efficiency had made a good explanation of the growth of agriculture produces ; ③The TFP growth and the technological progress is faster in eastern regions than in middle and western regions, and the technology efficiency is worsen in middle and western regions; OIt is the technological progress who boost the TFP growth in China＇s agriculture. And there exists σ-convergence in the agricultural production efficiency of our country as a whole.