DEA-based Efficiency Analysis of the Construction of Key Small-scale Irrigation and Water Conservancy Counties——The Case Study of Jiangxi Province
Based on the method of DEA and Malmquist,this paper calculated the technical efficiency and the total factor productivity of the first nineteen key small-scale irrigation and water conservancy counties of Jiangxi province during the period of 2009 to 2011.The findings of the research are: the technical efficiency of the first key small-scale irrigation and water conservancy counties is of a higher level.The average pure technical efficiency is 0.894,and the average comprehensive technical efficiency is 0.836,and the average scale efficiency is 0.934.The lower pure technical efficiency is the major reason for the invalid comprehensive efficiency of the construction of these counties; the construction scale of these major small-scale irrigation and water conservancy counties is continuously optimizing; the average growth rate of the total factor productivity is 3.7%.It is mainly derived from the push of technical efficiency and technical progress.The technical efficiency contributes 2.5% and technical progress contributes1.2%.