中国绿色农业技术效率及其省际差异分析——基于1998—2012年的面板数据

基于1998—2012年面板数据,运用熵值法和DEA模型测算中国绿色农业产出和绿色农业技术效率,并分析其省际差异。研究表明,中国农业已经初具绿色转型的趋势,除东北地区外,其他地区绿色农业技术效率均上升;中国绿色农业技术效率有所提升,但整体水平仍然低下。东部、西部、东北、中部地区效率依次递减;全国省域间效率绝对差距没有缩小趋势,但相对差距明显缩小。东部、中部、西部和东北地区各地区内省域间绝对差距均没有缩小趋势,但东部、中部地区各地区内省域间相对差距存在缩小趋势,而西部、东北地区没有缩小趋势。全国2/3的省份绿色农业技术效率低下但处于增长态势;东北三省和内蒙古、宁夏、新疆陷入效率低下且呈下降态势的双重困境。

Technical efficiency of China＇s green agriculture economy and inter-provincial differences： Based on the panel data from 1998 to 2012

Based on the panel data of provinces from 1998 to 2012, the paper measures the output and technical efficiency of green agriculture economy in China by Entropy Evaluation Method （EEM） and DEA, and furthermore analyzes the changes and inter-provincial differences of the technical efficiency of green agriculture economy （TEGAE） The empirical results indicate as follows： China＇s agriculture has been undergoing a green transformation. The TEGAE in China has been increasing but is still low. The TEGAE decreases in turn from the East, the West, and the Northeast to the Centre in China. The TEGAE of every area except the Northeast in China is on the increase. The absolute disparity of TEGAE among provinces in China has not been decreasing, while the relative disparity has. The absolute disparity of TEGAE among provinces in the East, in the Centre, in the West, or in the Northeast has not been decreasing The relative disparity of TEGAE among provinces in the East or in the Centre has been decreasing, but that in the West or in the Northeast has not. The green agriculture economy is inefficient in two thirds of provinces in China, but the TEGAE is increasing. However, some provinces, like three provinces in the northeast of China , Inner Mongolia, Ningxia province and Xinjiang province, are in double binds the green agriculture economy being inefficient and the TEGAE having been declining.