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本文将从搜寻理论的角度说明不完全竞争存在的经济原因,并在此基础上分析反垄断政策的目标。本文试图说明,对搜寻费用的节约以及对搜寻费用支出的激励之间的矛盾将是决定市场竞争结构演进的重要因素之一。具有一定不完全竞争程度的市场结构可能恰恰提高了经济信息的交流效率,进而提高了市场配置资源的效率。因此,反垄断政策目标之一应该是维护市场有效率的信息交流,而非单纯地降低市场的集中度。
This article will explain the economic reasons of imperfect competition from the perspective of search theory, and on this basis, analyze the objectives of antitrust policy. This article attempts to show that the contradiction between the search cost savings and the incentive to search for expenses will be an important factor in determining the evolution of the market competition structure. The market structure with a certain degree of imperfect competition may just improve the efficiency of economic information exchange and further improve the efficiency of market allocation of resources. Therefore, one of the objectives of antitrust policy should be to maintain an efficient exchange of information in the marketplace, rather than simply reduce market concentration.