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Entry, exit, and imperfect competition in the long run
Journal article   Peer reviewed

Entry, exit, and imperfect competition in the long run

Rabah Amir and Val E. Lambson
Journal of economic theory, Vol.110(1), pp.191-203
05/01/2003
DOI: 10.1016/S0022-0531(03)00002-4

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Abstract

An infinite-horizon, stochastic model of entry and exit with sunk costs and imperfect competition is constructed. A subgame perfect Nash equilibrium for the general dynamic stochastic game is shown to exist as a limit of finite-horizon equilibria. This equilibrium has a relatively simple structure characterized by two numbers per finite history. Under very general conditions, it tends to exhibit excessive entry and insufficient exit relative to a social optimum.
Dynamic games Entry and exit Integer constraints

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