被国内外专家学者称之为“经济宪法”的《中华人民共和国反不正当竞争法》已于1993年12月1日正式施行,这是我国在社会主义市场制度建设方面的重大进展,更是克服和纠正我国经济生活中已大量存在的不正当竞争行为的需要。在我国虽然不正当竞争行为反映在经济生活诸多方面,然而,其突出的问题是市场垄断。因此,在我国市场化进程中,反不正当竞争的一个重要方面,就是反对市场垄断。一般来说,在我们经济生活中通常见到的市场垄断有四种情形: The “Anti-Unfair Competition Law of the People’s Republic of China”, which was called “the Economic Constitution,” by domestic and foreign experts and scholars, came into force on December 1, 1993. This is a significant progress made by our country in building the socialist market system. Overcome and Correct the Needs of Unfair Competition in Our Economic Life That Are Exist in Large Number. Although the unfair competition in our country is reflected in many aspects of economic life, its prominent problem is the monopoly of the market. Therefore, in the process of marketization in our country, one important aspect of anti-unfair competition is the opposition to market monopoly. In general, there are four types of market monopolies commonly seen in our economic life: