第五部分，通过一个案例用实证分析法从理论和实际上分析球员价值的差距及这种差距形成的原因。

In the fifth part, a case in point using empirical analysis analyzed theoretically and practically the differences among the valuation of players and the causes of these differences.

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在此基础上，提出论文研究的思路和方法，采用了波特竞争力模型、实证与案例分析法、基于供给链的市场营销模式等作为分析的理论基础。

On this basis, the proposed thesis research ideas and methods, the use of the Porter competitive model, empirical and case analysis, supply chain marketing model as the theoretical basis for analysis.

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本文采用实证分析法和比较分析法相结合的方法，结合案例分析，拟对农村公共物品供给中的需求表达进行全面、系统的论述。

This thesis makes use of method of demonstration and comparison, and method of analyzing cases, and tries to analyze systematically the problems existing in the supplies of rural public goods.

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