论文部分内容阅读
本文使用2003~2014年全国农村固定观察点河南省样本农户数据所组成的面板数据,选用EBM模型和GML指数分析了2009~2014年河南省小麦生产技术效率和小麦全要素生产率,然后将小麦全要素生产率进行了要素分解,使用相关工具变量和2SLS方法分析了粮食直接补贴对不同经营规模农户小麦生产率的影响。本文研究发现:2009~2014年,河南省小麦生产存在规模效应,而小麦全要素生产率进一步增长,要素投入增加是其小麦全要素生产率增长的主要原因;粮食直接补贴对农户的小麦生产技术效率具有积极作用,而对经营规模为6亩以上农户的小麦全要素生产率作用不大;从粮食直接补贴对小麦全要素生产率的各贡献因素的影响看,粮食直接补贴能促进经营规模为0~6亩农户的人力资本增长率和经营规模为6亩以上农户的要素投入增长率,但是,这些影响不足以促进小麦全要素生产率的提高。
In this paper, we use the panel data from a sample of rural households in Henan Province from 2003 to 2014 to analyze the technical efficiency of wheat production and the total factor productivity of wheat from 2009 to 2014 by using the EBM model and GML index. Then, Factor productivity was factor-decomposed and the effect of direct grain subsidies on wheat productivity of farmers of different scale of operations was analyzed using the relevant instrumental variables and the 2SLS method. This study found that from 2009 to 2014, there was a scale effect on wheat production in Henan Province, while the total factor productivity of wheat increased further. The increase of factor inputs was the main reason for the increase of total factor productivity of wheat. The technical efficiency of wheat direct subsidy Positive effects on the total factor productivity of wheat farmed by more than 6 mu farmers. From the direct contribution of grain subsidies to the contribution of the total factor productivity of wheat, the direct grain subsidies can promote the scale of operation of 0 to 6 mu The growth rate of human capital of farmers and that of farmers whose operation scale is above 6 mu are not enough to promote the improvement of total factor productivity of wheat.