A Dynamic Model of Bertrand Competition with Entry
14 Pages Posted: 11 Feb 1997 Last revised: 31 Oct 2017
Date Written: December 1, 1996
This paper analyzes a simple, repeated game of simultaneous entry and pricing. We report a surprising property of the symmetric equilibrium solution: If the number of potential competitors is increased above two, the market breaks down with higher probability, and the competitive outcome becomes less likely. More potential competition lowers welfare--another Bertrand paradox. The model can also be applied to auctions to explore whether a revenue maximizing auctioneer should restrict the number of bidders if bidder participation is costly.
JEL Classification: D43, D44, L13
Suggested Citation: Suggested Citation