Costly Renegotiation in Repeated Bertrand Games
This paper extends the concept of weak renegotiation-proof equilibrium (WRP) to allow for costly renegotiation and shows that even small renegotiation costs can have dramatic effects on the set of equilibria. More specifically, the paper analyzes the infinitely repeated Bertrand game. It is shown that for every level of renegotiation cost there exists a discount factor such that any collusive profit can be supported as an equilibrium outcome. Hence, any arbitrary small renegotiation cost will suffice to facilitate collusive outcomes for sufficiently patient firms. This result stands in stark contrast to the unique pure-strategy WRP equilibrium without renegotiation costs, which implies marginal-cost pricing in every period. Moreover, in comparison to the findings of McCutcheon (1997), who states that renegotiation costs have to be substantial to facilitate collusion, this result points to a quite different conclusion.
|Date of creation:||22 Mar 2010|
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- van Damme, E.E.C., 1989.
"Renegotiation-proof equilibria in repeated prisoners' dilemma,"
Other publications TiSEM
df9180a1-537e-4331-9f2a-7, Tilburg University, School of Economics and Management.
- van Damme, Eric, 1989. "Renegotiation-proof equilibria in repeated prisoners' dilemma," Journal of Economic Theory, Elsevier, vol. 47(1), pages 206-217, February.
- van Damme,Eric, 1986. "Renegotiation-proof equilibria in repeated Prisoner`s dilemma," Discussion Paper Serie A 84, University of Bonn, Germany.
- Asheim, G.B., 1988.
"Extending Renegotiation-Proofness To Infinite Horizon Games,"
16-88, Norwegian School of Economics and Business Administration-.
- Asheim, Geir B., 1991. "Extending renegotiation-proofness to infinite horizon games," Games and Economic Behavior, Elsevier, vol. 3(3), pages 278-294, August.
- David Genesove & Wallace P. Mullin, 2001.
"Rules, Communication and Collusion: Narrative Evidence from the Sugar Institute Case,"
NBER Working Papers
8145, National Bureau of Economic Research, Inc.
- David Genesove & Wallace P. Mullin, 2001. "Rules, Communication, and Collusion: Narrative Evidence from the Sugar Institute Case," American Economic Review, American Economic Association, vol. 91(3), pages 379-398, June.
- Genesove, David & Mullin, Wallace P, 2001. "Rules, Communication and Collusion: Narrative Evidence from the Sugar Institute Case," CEPR Discussion Papers 2739, C.E.P.R. Discussion Papers.
- Farrell, Joseph & Maskin, Eric, 1989.
"Renegotiation in repeated games,"
Games and Economic Behavior,
Elsevier, vol. 1(4), pages 327-360, December.
- Farrell, Joseph & Maskin, Eric, 1987. "Renegotiation in Repeated Games," Department of Economics, Working Paper Series qt9wv3h5jb, Department of Economics, Institute for Business and Economic Research, UC Berkeley.
- Joseph Farrell and Eric Maskin., 1987. "Renegotiation in Repeated Games," Economics Working Papers 8759, University of California at Berkeley.
- Motta,Massimo, 2004. "Competition Policy," Cambridge Books, Cambridge University Press, number 9780521016919, 1.
- Blume, A., 1991.
"Intra-Play Communication in Repeated Games,"
91-29, University of Iowa, Department of Economics.
- Aramendia, Miguel & Larrea, Concepcion & Ruiz, Luis, 2005. "Renegotiation in the repeated Cournot model," Games and Economic Behavior, Elsevier, vol. 52(1), pages 1-19, July.
- Motta,Massimo, 2004. "Competition Policy," Cambridge Books, Cambridge University Press, number 9780521816632, 1.
- McCutcheon, Barbara, 1997. "Do Meetings in Smoke-Filled Rooms Facilitate Collusion?," Journal of Political Economy, University of Chicago Press, vol. 105(2), pages 330-50, April.
- Bernheim, B. Douglas & Peleg, Bezalel & Whinston, Michael D., 1987. "Coalition-Proof Nash Equilibria I. Concepts," Journal of Economic Theory, Elsevier, vol. 42(1), pages 1-12, June.
- Andersson, Ola & Wengstrom, Erik, 2007. "A note on renegotiation in repeated Bertrand duopolies," Economics Letters, Elsevier, vol. 95(3), pages 398-401, June.
- Kranz, Sebastian & Ohlendorf, Susanne, 2009. "Renegotiation-Proof Relational Contracts with Side Payments," Discussion Paper Series of SFB/TR 15 Governance and the Efficiency of Economic Systems 259, Free University of Berlin, Humboldt University of Berlin, University of Bonn, University of Mannheim, University of Munich.
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