农民专业合作社规模经济与适宜社员规模研究——以山西省为例

采用超越对数成本函数模型及确定时点SUR法,对山西省15个县市70家果蔬农民专业合作社调研分析,以资产规模小于(大于)200万元为准,将筛选出的44家合作社分成两组,分别计算其规模经济和适宜社员人数。结论为:资产规模小于200万元的合作社总体上不具有规模经济,资产规模大于200万元的合作社具有轻微规模经济。资产规模小于200万和大于200万元的合作社适宜社员人数分别为66～113人和157～176人。

Study on Economies of Scale and Appropriate Members Scale of Farmers'Professional Co-operatives:Taking Shanxi Province as an Example

The paper uses SUR way to estimate TCF model and analyze economies of scale and appropriate members scale of 44 co-operatives selected from 70 fruit and vegetable farmers' professional co-ops.44 co-operatives are classified into two groups according to whether their asset is beyond 2 million yuan.The first group whose asset is beyond 2 million yuan has slight diseconomies of scale,and the other group has minor economies of scale.The appropriate number of members of the first group is between 66 and 113 people while the appropriate number of members of the second group is between 157 and 176 people.