中国农业全要素生产率构成及区域趋同性分析——基于1996-2010年Malmquist指数法

Analysis of Changes of Chinese Agricultural Total Factor Productivity and Its Convergence——From the 1996-2010 Annual Malmquist Index Approach

利用1996-2010年省际面板数据,运用DEA-Malmquist指数法模型,分析了中国农业全要素生产率(TFP)增长的构成即农业技术效率提高(Ech)和农业技术进步(Tch),并解释了不同区域农业全要素生产率(TFP)及其分解值的趋同性。研究结果表明:(1)1996-2010年,中国农业全要素生产率(TFP)年均增长率为4.1%,其中农业技术进步(Tch)年均增长率为4.8%,农业技术效率(Ech)年均增长率为-0.7%;(2)农业技术效率对全国农业全要素增长率区域差异的解释度分别为58%,剩下的42%则由农业技术进步解释;(3)"九.五"到"十一.五"期间,中西部区域农业技术效率和农业技术进步的交替增长,使得东中西区域间农业全要素生产率呈现出长期的趋同效应。

Based on Malmquist productlwty index and the panel aata of the 29 provmces within me penod of 1996 to 2010, the author decomposed the agricultural TFP （total factor productivity） of China into Tch （technical change） and Ech （technical efficiency change） according to the constitutes and analyzed the convergence of agricultural TFP, Eeh and Tch between different areas. The results indicate： （1） from the year 1996 to 2010, the agricultural TFP increases 4.1% per year on average, with the Tch 4.8% and the Ech -0.7%. （2）The Ech accounts for 58% of the regional divergence of Chinese agricultural TFP and the Tch accounts for the left 42%. （3） The alternate high increase of Ech and Teh in the middle and west regions leads the long term convergence of Chinese agricultural TFP from ＂the ninth five year＂ to ＂the eleventh five year＂.