The value of an informed bidder in common value auctions
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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- Stephen Morris & Hanming Fang, 2004.
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- Stephen Morris & Hanming Fang, 2004. "Multidimensional Private Value Auctions," Yale School of Management Working Papers ysm387, Yale School of Management.
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- 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.
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