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Jump Bidding and Overconcentration in Decentralized Simultaneous Ascending Auctions

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Author Info
Zheng, Charles Zhoucheng
Abstract

A model of English auction that allows jump bidding is proposed. When two objects are sold separately via such English auctions, I construct an equilibrium such that bidders signal via jump bids, thereby forming rational expectations of the prices without relying on any central mediator. This equilibrium eliminates the exposure problem for a bidder whose valuation function is superadditive. Consequently, the auction game overly concentrates the goods to a multi-item bidder and never overly diffuses them to single-item bidders.

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Paper provided by Iowa State University, Department of Economics in its series Staff General Research Papers with number 12698.

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Length: 21 pages
Date of creation: 16 Nov 2006
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Handle: RePEc:isu:genres:12698

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Related research
Keywords: auction; multiple object aucrtions; simultaneous auctions; synergy; complementarity; exposure problem; threshold problem;

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C7 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory

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  1. Brusco, Sandro & Lopomo, Giuseppe, 2002. "Collusion via Signalling in Simultaneous Ascending Bid Auctions with Heterogeneous Objects, with and without Complementarities," Review of Economic Studies, Blackwell Publishing, vol. 69(2), pages 407-36, April.
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  2. Gul, Faruk & Stacchetti, Ennio, 2000. "The English Auction with Differentiated Commodities," Journal of Economic Theory, Elsevier, vol. 92(1), pages 66-95, May. [Downloadable!] (restricted)
  3. Vijay Krishna & Robert Rosenthal, 1995. "Simultaneous Auctions with Synergies," Game Theory and Information 9503004, EconWPA. [Downloadable!]
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  4. Sandro Brusco & Giuseppe Lopomo, 2009. "Simultaneous ascending auctions with complementarities and known budget constraints," Economic Theory, Springer, vol. 38(1), pages 105-124, January. [Downloadable!] (restricted)
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  5. Sandro Brusco & Giuseppe Lopomo, 2004. "Simultaneous Ascending Bid Auctions with Privately Known Budget Constraints," Levine's Bibliography 122247000000000373, UCLA Department of Economics. [Downloadable!]
  6. Lawrence M. Ausubel & Paul R. Milgrom, 2002. "Ascending Auctions with Package Bidding," The B.E. Journal of Theoretical Economics, Berkeley Electronic Press, vol. 0(1). [Downloadable!]
  7. Bykowsky, Mark M & Cull, Robert J & Ledyard, John O, 2000. "Mutually Destructive Bidding: The FCC Auction Design Problem," Journal of Regulatory Economics, Springer, vol. 17(3), pages 205-28, May. [Downloadable!] (restricted)
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  8. Gul, Faruk & Stacchetti, Ennio, 1999. "Walrasian Equilibrium with Gross Substitutes," Journal of Economic Theory, Elsevier, vol. 87(1), pages 95-124, July. [Downloadable!] (restricted)
  9. Paul Milgrom, 2000. "Putting Auction Theory to Work: The Simultaneous Ascending Auction," Journal of Political Economy, University of Chicago Press, vol. 108(2), pages 245-272, April. [Downloadable!] (restricted)
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  10. Ruqu Wang & Alan Gunderson, 1998. "Signally by Jump Bidding in Private Value Auctions," Working Papers 975, Queen's University, Department of Economics. [Downloadable!]
  11. Albano, Gian Luigi & Germano, Fabrizio & Lovo, Stefano, 2001. "A comparison of standard multi-unit auctions with synergies," Economics Letters, Elsevier, vol. 71(1), pages 55-60, April. [Downloadable!] (restricted)
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  12. Avery, Christopher, 1998. "Strategic Jump Bidding in English Auctions," Review of Economic Studies, Blackwell Publishing, vol. 65(2), pages 185-210, April. [Downloadable!] (restricted)
  13. Rosenthal, Robert W. & Wang, Ruqu, 1996. "Simultaneous Auctions with Synergies and Common Values," Games and Economic Behavior, Elsevier, vol. 17(1), pages 32-55, November. [Downloadable!] (restricted)
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  14. Vijay Krishna & Motty Perry, 1997. "Efficient Mechanism Design," Game Theory and Information 9703010, EconWPA, revised 28 Apr 1998. [Downloadable!]
  15. Gian Albano & Fabrizio Germano & Stefano Lovo, 2006. "Ascending auctions for multiple objects: the case for the Japanese design," Economic Theory, Springer, vol. 28(2), pages 331-355, 06. [Downloadable!] (restricted)
  16. Lawrence M. Ausubel & Paul Milgrom, 2002. "Ascending Auctions with Package Bidding," Working Papers 02004, Stanford University, Department of Economics. [Downloadable!]
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