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The value of an informed bidder in common value auctions

  • Kim, Jinwoo
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    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.

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

    Volume (Year): 143 (2008)
    Issue (Month): 1 (November)
    Pages: 585-595

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    Handle: RePEc:eee:jetheo:v:143:y:2008:i:1:p:585-595
    Contact details of provider: Web page: http://www.elsevier.com/locate/inca/622869

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    1. Stephen Morris & Hanming Fang, 2004. "Multidimensional Private Value Auctions," Econometric Society 2004 North American Winter Meetings 174, Econometric Society.
    2. 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.
    3. 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.
    4. Paul Milgrom & Robert J. Weber, 1981. "The Value of Information in a Sealed-Bid Auction," Discussion Papers 462, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
    5. 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.
    6. Milgrom, Paul R & Weber, Robert J, 1982. "A Theory of Auctions and Competitive Bidding," Econometrica, Econometric Society, vol. 50(5), pages 1089-1122, September.
    7. 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.
    8. 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.
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