Market structure and welfare under monopolistic competition

被引：1
|
作者：
Sa, Nelson [1 ]
机构：
[1] Vassar Coll, Dept Econ, Poughkeepsie, NY 12604 USA
来源：
ECONOMICS LETTERS | 2015年 / 132卷
关键词：
Sunk costs; Monopolistic competition; Welfare; DIFFERENTIATION;
D O I：
10.1016/j.econlet.2015.04.018
中图分类号：
F [经济];
学科分类号：
02 ;
摘要：
This paper analyzes the relationship between market structure and welfare by developing a model of monopolistic competition in which exogenous entry costs and endogenous differentiation costs determine market concentration and market power. A non-monotonic link is identified between these costs and welfare under a decentralized equilibrium. These results detail new reasons why simple market concentration indicators are a misleading statistic for welfare evaluations. (C) 2015 Elsevier B.V. All rights reserved.
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页码：69 / 72
页数：4
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