IT TAKES 2 TO TANGO - EQUILIBRIA IN A MODEL OF SALES

被引:77
作者
BAYE, MR
KOVENOCK, D
DEVRIES, CG
机构
[1] PURDUE UNIV,DEPT ECON,W LAFAYETTE,IN 47907
[2] CATHOLIC UNIV LEUVEN,CTR ECON STUDIES,B-3000 LOUVAIN,BELGIUM
关键词
D O I
10.1016/0899-8256(92)90033-O
中图分类号
F [经济];
学科分类号
02 ;
摘要
We show that the Varian model of sales with more than two firms has two types of equilibria: a unique symmetric equilibrium, and a continuum of asymmetric equilibria. In contrast, the 2-firm game has a unique equilibrium that is symmetric. For the n-firm case the asymmetric equilibria imply mixed strategies that can be ranked by first-order stochastic dominance. This enables one to rule out asymmetric equilibria on economic grounds by constructing a metagame in which both firms and consumers are players. The unique subgame perfect equilibrium of this metagame is symmetric. © 1992.
引用
收藏
页码:493 / 510
页数:18
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