This paper selects the interest group theory as the basic theoretical framework and tries to explore the hidden problem behind the high medical expense.

本文以公共选择中的利益集团理论作为基本的理论框架，试图探索在药品价格虚高的背后存在着的问题。

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The group decision Theory is made up of the group decision that embodies the collective interest and the analysis with conflicts that means the game problems are among the companies of an ISC.

群决策理论主要由体现集体利益的集体决策与强调成员之间存在博弈问题的冲突分析所组成。

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