Mediators in position auctions
A mediator is a reliable entity which plays on behalf of the players who give her the right to play. The mediator acts in a pre-specified way based on messages received from the players. However, a mediator cannot enforce behavior; that is, players can play in the game directly without the mediator's help. A mediator generates a new game for the players, the mediated game. The outcome in the original game of an equilibrium in the mediated game is called a mediated equilibrium. Monderer and Tennenholtz introduced a theory of mediators for games with complete information. We extend the theory of mediators to games with incomplete information, and apply the new theory to position auctions, a central topic in electronic commerce. We provide a minimal set of conditions on position auctions, which is sufficient to guarantee that the VCG outcome function is a mediated equilibrium in these auctions.
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- FORGES, Françoise, .
"An approach to communication equilibria,"
CORE Discussion Papers RP
721, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
- Ehud Kalai & Robert W. Rosenthal, 1976. "Arbitration of Two-Party Disputes Under Ignorance," Discussion Papers 215, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
- R. Aumann, 2010.
"Subjectivity and Correlation in Randomized Strategies,"
Levine's Working Paper Archive
389, David K. Levine.
- Aumann, Robert J., 1974. "Subjectivity and correlation in randomized strategies," Journal of Mathematical Economics, Elsevier, vol. 1(1), pages 67-96, March.
- AUMANN, Robert J., . "Subjectivity and correlation in randomized strategies," CORE Discussion Papers RP 167, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
- Myerson, Roger B, 1986.
"Multistage Games with Communication,"
Econometric Society, vol. 54(2), pages 323-58, March.
- Benjamin Edelman & Michael Ostrovsky & Michael Schwarz, 2007.
"Internet Advertising and the Generalized Second-Price Auction: Selling Billions of Dollars Worth of Keywords,"
American Economic Review,
American Economic Association, vol. 97(1), pages 242-259, March.
- Benjamin Edelman & Michael Ostrovsky & Michael Schwarz, 2005. "Internet Advertising and the Generalized Second Price Auction: Selling Billions of Dollars Worth of Keywords," NBER Working Papers 11765, National Bureau of Economic Research, Inc.
- Dov Monderer & Moshe Tennenholtz, 2004. "K-price auctions: Revenue inequalities, utility equivalence, and competition in auction design," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 24(2), pages 255-270, August.
- McAfee, R. Preston & McMillan, John., 1990.
726, California Institute of Technology, Division of the Humanities and Social Sciences.
- Holzman, Ron & Kfir-Dahav, Noa & Monderer, Dov & Tennenholtz, Moshe, 2004. "Bundling equilibrium in combinatorial auctions," Games and Economic Behavior, Elsevier, vol. 47(1), pages 104-123, April.
- Mas-Colell, Andreu & Whinston, Michael D. & Green, Jerry R., 1995. "Microeconomic Theory," OUP Catalogue, Oxford University Press, number 9780195102680, December.
- Graham, Daniel A & Marshall, Robert C, 1987. "Collusive Bidder Behavior at Single-Object Second-Price and English Auctions," Journal of Political Economy, University of Chicago Press, vol. 95(6), pages 1217-39, December.
- Tauman, Yair, 2002. "A note on k-price auctions with complete information," Games and Economic Behavior, Elsevier, vol. 41(1), pages 161-164, October.
- Varian, Hal R., 2007. "Position auctions," International Journal of Industrial Organization, Elsevier, vol. 25(6), pages 1163-1178, December.
- Holzman, Ron & Monderer, Dov, 2004. "Characterization of ex post equilibrium in the VCG combinatorial auctions," Games and Economic Behavior, Elsevier, vol. 47(1), pages 87-103, April.
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