THE PROBLEM OF IMPUTING A CHARGE FOR FARMERS‘ MANAGEMENT: A COMMENT
评论Simon（1979）提出的从FMS数据估算农场主管理投入价值的模型，指出其依赖未经检验的武断假设，且对农民实际行为和成本估算目的存在误解。
In a recent article in this journal, Simon (1979) presented a model intended to provide a basis for the empirical estimation, from FMS data, of the value of the farmer's management input. Unfortunately, Simon's model can be used for this purpose only with the aid of some apparently arbitrary assumptions which are produced without critical examination or empirical evidence. We believe that his approach reveals a mistaken view of how farmers actually behave and a confusion as to the problem and purpose of imputing costs to non‐traded items.