粮食类专业合作社的增收效果评价——基于PSM-DID模型分析

Participation in Grain Cooperative and Effect on Agricultural Income: An Analysis Based on PSM-DID Model

运用PSM-DID模型对江苏省海安县水稻种植户加入合作社的增收效果进行分析。结果表明,在消除选择性偏差后,合作社能够明显提高水稻种植户的销售收入,且对规模较大农户的增收效果要好于规模较小农户。因此,在粮食安全的新形势下,大力发展粮食专业合作社是改变种粮比较效益低、粮农增收缓慢的有效途径。

Taking comprehensive consideration of the selection biases, this paper estimates the effect of grain cooperatives on increasing farmers income by using the PSM-DID model based on the data of rice farmers in Haian County ,Jiangsu Province.The empirical results show that the grain cooperatives have significantly pos- itive effect on farmers＇ income, which is greater on large-scaled farmers＇ income than on that of the small- scaled farmers.Therefore,under the new situation of food security,to develop the grain cooperatives is one of the effective ways to improve farmers＇ economic welfare.