一、引言相对于市场属于横向的制度安排来说,竞争政策或者反垄断法〔1〕应当属于纵向的制度安排,其作用在于从纵向制度安排上来决定平行市场制度安排中企业之间竞争与合作的混合比例,对企业之间竞争的强度和合作的范围进行管理〔2〕。在现代市场经济国家,反垄断法作为一种基本的市场规制手段,是保证 I. Introduction Compared with the institutional arrangement that the market is horizontal, the competition policy or the antitrust law [1] should belong to the vertical institutional arrangement whose role is to determine the competition and cooperation among the enterprises in the parallel market institutional arrangements from the vertical institutional arrangement The proportion of the competition between enterprises, the intensity of competition and the scope of cooperation management 〔2〕. In modern market economy countries, the antitrust law as a basic means of market regulation is a guarantee