西藏“一江两河”地区农户生产效率分析及改进方案——基于三阶段DEA模型和农户微观数据

THE ANALYSIS AND IMPROVEMENT FOR AGRICULTURAL PRODUCTION EFFICIENCY OF HOUSEHOLDS IN THE YLN REGION OF TIBET——BASED ON A THREE-STAGE DEA MODEL AND THE MICRO-DATA OF RURAL HOUSEHOLDS

为剔除环境效应和随机因素对生产效率值测算结果的影响,以三阶段DEA模型和农户实地调查数据为基础,进行了西藏"一江两河"地区2009年农业生产效率的实证分析,结果显示:农户的生产补贴、受教育年限和非农收入等环境变量和随机因素显著影响了其农业生产效率,而将生产环境和随机因素同质化之后,农户在农业生产过程中的决策与管理效率较为有效,且区域间并未呈现出显著差异,规模效益成为制约农业生产效率提升的最主要瓶颈。在此基础之上,基于投影分析,本文提出了发展农区畜牧业、优化农业投入和提高人力资源配置效率三个方面的政策建议。

In order to eliminate the adverse effects of environmental and random factors on the production efficiency,the paper makes an empirical study on the agricultural production efficiency of households in the YLN region of Tibet in 2009 through a three-stage DEA model and the micro-data of rural households.The results shown as follows： environmental and random factors,such as the amount of subsidy,the average education years,and nonfarm income of rural households,has a remarkable influence on production efficiency of rural households.Under the homogeneous background,the decision-making and management efficiency of rural households is relatively high,and the regional differences of efficiency are small statistically,the scale efficiency is proved to be the bottleneck of the improvement of the agriculture production efficiency.Then,based on the projection analysis,this study proposes policy recommendations,such as structural readjustment in agriculture,material input optimization and reasonable allocation of labor resources