讲座:Beyond Monopolistic Competition 发布时间:2022-09-26

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  目:Beyond Monopolistic Competition

  宾:刘熙莹 特聘研究员,副教授 武汉大学经济与管理学院

主持人:喻洋 助理教授 上海交通大学安泰经济与管理学院

  间:2022928日(周三)14:30-16:00

 点:腾讯会议(校内师生如需会议号和密码,请发邮件至yueqiwang@sjtu.edu.cn获取)

内容简介:

Symmetry is a central assumption of Chamberlin’s model of monopolistic competition. It gives rise to monopolies rather than oligopolies, both in its determinist (Dixit and Stiglitz 1977) and stochastic (Melitz 2003) versions. We relax this assumption. As a result, depending on strategic considerations, entering firms may choose to engage in face-to-face competition rather than create their own variety. The extended model provides a tractable unified general equilibrium theory of oligopolistic competition, allows for endogenous product differentiation, and includes monopolistic and perfect competition as special cases. We characterize the free entry equilibrium, under Bertrand and Cournot competition respectively, and the efficient and constrained efficient allocations. We demonstrate the advantages of our unified approach, such as the Kaldor-Chamberlin controversy, the competitive effects of trade, and the strengths and weaknesses of monopolistic competitive models.

演讲人简介:

主讲人刘熙莹是武汉大学经济与管理学院的特聘研究员,副教授。她2015年毕业于爱荷华州立大学经济系。主要研究方向包括宏观视角与经济增长框架下的人口与收入、财富不平等,以及市场竞争的模式(完全竞争、垄断、寡头)。她的文章发表于宏观经济学领域顶级期刊Journal of Monetary Economics, 理论经济学顶级期刊 Theoretical Economics 以及家庭人口经济学的国际一流期刊 Journal of Demographic Economics

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