Multiplicity of equilibria in search markets with free entry and exit
In this paper I identify an instance of multiplicity of equilibria, in search markets with production cost heterogeneity. I show that if firms may enter or exit the market, there may be multiple equilibria. I provide a monotonicity property, which is necessary and sufficient for uniqueness. Multiplicity vanishes as the search cost gets small. Multiple equilibria can be ranked by welfare.
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