垄断是十分复杂的经济现象 ,单纯依靠判例或经验并不能有效地防止或限制垄断 ,因此 ,在垄断问题上 ,普通法国家采用的是制定法与普通法相结合的方法 ,制定法的地位和作用要大于判例法。 Monopoly is a very complicated economic phenomenon. Monopoly can not be effectively prevented or restricted by relying on the precedent or experience alone. Therefore, on the issue of monopoly, common law countries adopt a combination of statutory and common law to formulate the status and role of law More than case law.