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The value of an informed bidder in common value auctions

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  • Kim, Jinwoo

Abstract

I compare two information structures in a common value first-price auction with two bidders: In one, each of the two bidders knows only his own signal about the value of the object, and in the other, one of the bidders learns his opponent's signal as well. Gaining the additional information in the second information structure makes the informed bidder worse off if the value is submodular in the bidders' signals and better off if it is supermodular. If the value is supermodular, then the seller's revenue tends to be lower with the informed bidder than without.

Suggested Citation

  • Kim, Jinwoo, 2008. "The value of an informed bidder in common value auctions," Journal of Economic Theory, Elsevier, vol. 143(1), pages 585-595, November.
  • Handle: RePEc:eee:jetheo:v:143:y:2008:i:1:p:585-595
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    References listed on IDEAS

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    1. Milgrom, Paul R & Weber, Robert J, 1982. "A Theory of Auctions and Competitive Bidding," Econometrica, Econometric Society, vol. 50(5), pages 1089-1122, September.
    2. Hanming Fang & Stephen Morris, 2012. "Multidimensional Private Value Auctions," World Scientific Book Chapters,in: Robust Mechanism Design The Role of Private Information and Higher Order Beliefs, chapter 9, pages 319-356 World Scientific Publishing Co. Pte. Ltd..
    3. Kim, Jinwoo & Che, Yeon-Koo, 2004. "Asymmetric information about rivals' types in standard auctions," Games and Economic Behavior, Elsevier, vol. 46(2), pages 383-397, February.
    4. Milgrom, Paul & Weber, Robert J., 1982. "The value of information in a sealed-bid auction," Journal of Mathematical Economics, Elsevier, vol. 10(1), pages 105-114, June.
    5. Motty Perry & Philip J. Reny, 1999. "On The Failure of the Linkage Principle in Multi-Unit Auctions," Econometrica, Econometric Society, vol. 67(4), pages 895-900, July.
    6. Feinberg Yossi & Tennenholtz Moshe, 2005. "Anonymous Bidding and Revenue Maximization," The B.E. Journal of Theoretical Economics, De Gruyter, vol. 5(1), pages 1-12, October.
    7. Campbell, Colin M. & Levin, Dan, 2000. "Can the Seller Benefit from an Insider in Common-Value Auctions?," Journal of Economic Theory, Elsevier, vol. 91(1), pages 106-120, March.
    8. Fang, Hanming & Parreiras, Sergio O., 2003. "On the failure of the linkage principle with financially constrained bidders," Journal of Economic Theory, Elsevier, vol. 110(2), pages 374-392, June.
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    Cited by:

    1. Celik, Gorkem & Peters, Michael, 2011. "Equilibrium rejection of a mechanism," Games and Economic Behavior, Elsevier, vol. 73(2), pages 375-387.
    2. Florian Morath & Johannes Münster, 2013. "Information acquisition in conflicts," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 54(1), pages 99-129, September.
    3. Erik R. Fasten & Dirk Hofmann, 2010. "Two-sided Certification: The market for Rating Agencies," SFB 649 Discussion Papers SFB649DP2010-007, Sonderforschungsbereich 649, Humboldt University, Berlin, Germany.

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