A dynamic model of Bertrand competition with entry
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.
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- Sharkey, William W. & Sibley, David S., 1993. "A Bertrand model of pricing and entry," Economics Letters, Elsevier, vol. 41(2), pages 199-206.
- McAfee, R. Preston & McMillan, John, 1987. "Auctions with a stochastic number of bidders," Journal of Economic Theory, Elsevier, vol. 43(1), pages 1-19, October.
- Roger Sherman & Thomas D. Willett, 1967. "Potential Entrants Discourage Entry," Journal of Political Economy, University of Chicago Press, vol. 75, pages 400.
- Wolfstetter, Elmar, 1996.
" Auctions: An Introduction,"
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Wiley Blackwell, vol. 10(4), pages 367-420, December.
- Edward L. Millner & Michael D. Pratt & Robert J. Reilly, 1990. "Contestability in Real-Time Experimental Flow Markets," RAND Journal of Economics, The RAND Corporation, vol. 21(4), pages 584-599, Winter.
- L. Wade, 1988. "Review," Public Choice, Springer, vol. 58(1), pages 99-100, July.
- Joseph Farrell, 1987. "Cheap Talk, Coordination, and Entry," RAND Journal of Economics, The RAND Corporation, vol. 18(1), pages 34-39, Spring.
- Dasgupta, P. & Stiglitz, J. E., 1988. "Potential competition, actual competition, and economic welfare," European Economic Review, Elsevier, vol. 32(2-3), pages 569-577, March.
- Posner, Richard A, 1975. "The Social Costs of Monopoly and Regulation," Journal of Political Economy, University of Chicago Press, vol. 83(4), pages 807-27, August.
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