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The Effect of Shill Bidding upon Prices: Experimental Evidence

Author

Listed:
  • Georgia Kosmopoulou

    (University of Oklahoma)

  • Dakshina G. De Silva

    (Texas Tech University)

Abstract

This paper explores, through a series of experiments, the effect of shill bidding upon revenues and prices in auctions. We study the practice of shill bidding in a common value framework. Our findings are consistent with the theoretical prediction that, if bidders are aware of the possibility of seller participation in an auction, shill bidding lowers profits on average. Shill bidding can alleviate the problem of the winner's curse by lowering the price and it can, thus, provide benefits to the bidders. Finally, even though there were too many bidders that submitted bids in these auctions, the number of entrants was not affected by the possibility of seller participation, which is also consistent with the theory.

Suggested Citation

  • Georgia Kosmopoulou & Dakshina G. De Silva, 2005. "The Effect of Shill Bidding upon Prices: Experimental Evidence," Experimental 0512002, EconWPA.
  • Handle: RePEc:wpa:wuwpex:0512002
    Note: Type of Document - pdf; pages: 38
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    File URL: https://econwpa.ub.uni-muenchen.de/econ-wp/exp/papers/0512/0512002.pdf
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    References listed on IDEAS

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    1. Brannman, Lance & Klein, J Douglass & Weiss, Leonard W, 1987. "The Price Effects of Increased Competition in Auction Markets," The Review of Economics and Statistics, MIT Press, vol. 69(1), pages 24-32, February.
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    4. Indranil Chakraborty & Georgia Kosmopoulou, 2004. "Auctions with shill bidding," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 24(2), pages 271-287, August.
    5. McAfee, R Preston & Vincent, Daniel, 1992. "Updating the Reserve Price in Common-Value Auctions," American Economic Review, American Economic Association, vol. 82(2), pages 512-518, May.
    6. Bikhchandani, Sushil & Riley, John G., 1991. "Equilibria in open common value auctions," Journal of Economic Theory, Elsevier, vol. 53(1), pages 101-130, February.
    7. Baye, Michael & GATTI, RUPERT J & Kattuman, Paul & Morgan, John, 2004. "Estimating Firm-Level Demand at a Price Comparison Site: Accounting for Shoppers and the Number of Competitors," Competition Policy Center, Working Paper Series qt923692d1, Competition Policy Center, Institute for Business and Economic Research, UC Berkeley.
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    16. Engelbrecht-Wiggans, Richard & Nonnenmacher, Tomas, 1999. "A Theoretical Basis for 19th-Century Changes to the Port of New York Imported Goods Auction," Explorations in Economic History, Elsevier, vol. 36(3), pages 232-245, July.
    17. John H. Kagel & Colin M. Campbell & Dan Levin, 1999. "The Winner's Curse and Public Information in Common Value Auctions: Reply," American Economic Review, American Economic Association, vol. 89(1), pages 325-334, March.
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    Citations

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    Cited by:

    1. Bose, Subir & Daripa, Arup, 2017. "Shills and snipes," Games and Economic Behavior, Elsevier, vol. 104(C), pages 507-516.
    2. repec:eee:ijoais:v:16:y:2015:i:c:p:42-54 is not listed on IDEAS
    3. Axel Ockenfels & David Reiley & Abdolkarim Sadrieh, 2006. "Online Auctions," NBER Working Papers 12785, National Bureau of Economic Research, Inc.
    4. Lorentziadis, Panos L., 2016. "Optimal bidding in auctions from a game theory perspective," European Journal of Operational Research, Elsevier, vol. 248(2), pages 347-371.
    5. Herzog, Dominic, 2014. "Shill Bidder’s Behavior in a Second-Price Online Auction," Working papers 2014/03, Faculty of Business and Economics - University of Basel.
    6. Coatney, Kalyn & Harri, Ardian, 2015. "Auctioneer Versus a Dominant Bidder: Evidence from a Cattle Auction," 2015 AAEA & WAEA Joint Annual Meeting, July 26-28, San Francisco, California 207368, Agricultural and Applied Economics Association;Western Agricultural Economics Association.
    7. Tim Hoppe & Abdolkarim Sadrieh, 2007. "An Experimental Assessment of Confederate Reserve Price Bids in Online Auction," FEMM Working Papers 07011, Otto-von-Guericke University Magdeburg, Faculty of Economics and Management.
    8. David Grether & David Porter & Matthew Shum, 2015. "Cyber-Shilling in Automobile Auctions: Evidence from a Field Experiment," American Economic Journal: Microeconomics, American Economic Association, vol. 7(3), pages 85-103, August.

    More about this item

    Keywords

    Auctions; Experiment; Shill Bidding; Entry;

    JEL classification:

    • C91 - Mathematical and Quantitative Methods - - Design of Experiments - - - Laboratory, Individual Behavior
    • D44 - Microeconomics - - Market Structure, Pricing, and Design - - - Auctions

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