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在分析垄断行为对市场竞争造成影响的过程中进行经济学分析是必不可少的环节。相较分析垄断协议和滥用市场支配地位行为,市场集中度在合并审查分析过程中发挥着较大作用;市场集中度测量方法经过了从CRn到HHI的转变。美国作为反垄断法的鼻祖,关于市场集中度的立法经历了HHI未入法阶段、前HHI阶段和后HHI阶段。针对我国市场集中度适用存在的问题,美国的适用经验能够为我们提供启示:我国应当明确市场集中度仅为开端性审查因素,合理设定测量方法临界值和变化值,在体现多方效应的案例中加强对HHI的适用。
In the analysis of monopolistic behavior on the market competition in the process of economic analysis is an essential part. Compared with the analysis of monopoly agreements and abuse of market dominance, market concentration plays a greater role in the process of merger review and analysis; and the market concentration measurement method has undergone a shift from CRn to HHI. As the originator of the antitrust law, the legislation on market concentration has gone through the stages of HHI Immersion, Pre-HHI and Post-HHI. In view of the problems existing in the application of market concentration in our country, the applicable experience of the United States can provide enlightenment to us: our country should make it clear that market concentration is only an initial reviewing factor, and that the threshold and variation of measurement methods should be set reasonably. In strengthening the application of HHI.