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Optimal collusion-proof auctions

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  • Che, Yeon-Koo
  • Kim, Jinwoo

Abstract

We study an optimal collusion-proof auction in an environment where subsets of bidders may collude not just on their bids but also on their participation. Despite their ability to collude on participation, informational asymmetry facing the potential colluders can be exploited significantly to weaken their collusive power. The second-best auction -- i.e., the optimal auction in a collusion-free environment -- can be made collusion-proof, if at least one bidder is not collusive, or there are multiple bidding cartels, or the second-best outcome involves a non-trivial probability of the object not being sold. Regardless, optimal collusion-proof auction prescribes non-trivial exclusion of collusive bidders, i.e., a refusal to sell to any collusive bidder with positive probability.

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Bibliographic Info

Article provided by Elsevier in its journal Journal of Economic Theory.

Volume (Year): 144 (2009)
Issue (Month): 2 (March)
Pages: 565-603

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Handle: RePEc:eee:jetheo:v:144:y:2009:i:2:p:565-603

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Web page: http://www.elsevier.com/locate/inca/622869

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Keywords: Collusion on participation Subgroup collusion Multiple bidding cartels An exclusion principle;

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Citations

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Cited by:
  1. Antonio Estache & A. Iimi, 2008. "Procurement Efficiency for Infrastructure Development and Financial Needs Reassessed," Working Papers ECARES 2008_022, ULB -- Universite Libre de Bruxelles.
  2. Antonio Estache & A. Iimi, 2009. "Auctions with Endogenous Participation and Quality Thresholds: Evidence from ODA Infrastructure Procurement," Working Papers ECARES 2009_006, ULB -- Universite Libre de Bruxelles.
  3. Kaplan, Todd R & Zamir, Shmuel, 2014. "Advances in Auctions," MPRA Paper 54656, University Library of Munich, Germany.
  4. Hu, Audrey & Offerman, Theo & Onderstal, Sander, 2011. "Fighting collusion in auctions: An experimental investigation," International Journal of Industrial Organization, Elsevier, vol. 29(1), pages 84-96, January.
  5. Biran, Omer, 2011. "Mécanismes d'échange en présence d'externalités," Economics Thesis from University Paris Dauphine, Paris Dauphine University, number 123456789/7238 edited by Forges, Françoise, November.

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