再次，分析临沂市农村公共品供给存在问题的原因。
Once more, the paper has analyzed the reasons of the problems which existed in the countryside public supply of LinYi.
本文通过规范分析，无论在何种农村公共品供给的假定条件下，农村公共品供给的结果都与理论假定偏离。
With normative analysis, this paper concludes that the result of rural public goods supply deviates from theoretic analysis.
基于此，作者赴农村实地展开了农村公共品自愿供给的实证调研，透过大量案例，观察到了农民合作的起源、过程、困境以及相应的惩罚机制。
Through these cases about the public goods'voluntary provision in the rural area, the thesis finds the source, process, dilemma and punishment of the peasant cooperation.
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