中文摘要：

在剔除了自然环境、社会环境、经济环境等因素与随机误差的影响后，运用三阶段DEA，测算了2009年我国农村公共投资绩效。结果显示：调整环境因素前后的技术效率、纯技术效率、规模效率存在显著差异，调整环境因素后的效率值的波动程度明显减轻，稳定性增强，对农村公共投资效率解释的准确性和可信性增强；农村公共部门在保持产出水平不变的条件下，通过提高资金运作效率可节约12．9％的投入；分区域来看，东、西部地区的农村公共投资效率情况较好，中部地区及西南地区的农村公共投资技术效率相对较低，但规模报酬呈递增趋势；调整环境因素后湖南、广东、广西、贵州、云南五省区的农村公共投资绩效处于规模报酬递增阶段。

英文摘要：

After eliminating the influences of nature environment, social environment, economic environment and stochastic error, this paper evaluates the performance of rural public investment in China in 2009 by the three-stage DEA. The result shows that technical efficiency, pure technical efficiency, and scale efficiency of rural public investment after adjusting the environment factors are significantly different with those before these adjustment,and this adjustment weakens the fluctuation of efficiency and increases the stability,and enhances the accuracy and the credibility of explaining the efficiency of rural public investment; on the condition that the output level is unchanged, the rural public sectors could save 12.9% of total investment by increasing the operational efficiency;the efficiencies of rural public investment in east and west regions are higher, and those in middle and south-west regions are lower,but returns to scale of the latter represents a good increasing trend;the performances of rural public investment in Hunan,Guangdong, Guangxi, Guizhou and Yunnan are in the stage of increasing returns to scale after adjusting the environment factors.