中文摘要：

以哈佛学派为代表的结构主义十分强调市场结构对市场行为和市场效果的决定作用,提出了著名的＂集中度-利润率＂假说,主张对经济生活中的垄断和寡占采取规制政策,以恢复和维护有效竞争市场秩序。与之相反,效率主义认为市场绩效或市场行为决定了市场结构,主张放松反托拉斯法实施和政府规制政策。围绕这两种观点,学界展开了激烈的争论,近年来的理论界最新争论,主要围绕结构优先,还是行为优先问题,越来越把研究的视角深入到经济的＂细枝末节＂,从企业决策、个体行为等角度探究现实中的问题。在政策取向上,强调了政府、市场、企业三者之间的互动关系。

英文摘要：

Structuralism represented by the Harvard School strongly emphasizes market structure＇s decisive impact on market behavior and market effect.Structuralism proposes well-known ＂Concentration-Margin＂ hypothesis and advocates regulatory policies on monopoly and oligopoly in the economic life to restore and sustain the market order of effective competition.In contrast,Efficiency believes that market effect or market behavior determines the market structure and advocates to relax the implementation of antitrust laws and government＇s regulatory policies.Between the two points of view,the academic circle has carried out a heated debate.In recent years,the latest debate in the academic circle mainly focuses on the priority issue between structure and behavior and increasingly deepens the research perspective into the economic details to explore the reality issues from the perspectives of enterprise decisions,individual behavior,etc..Policy orientation emphasizes the interactive relations among government,market and enterprise.