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Bids as a Vehicle of (Mis)Information: Collusion in English Auctions with Affiliated Values

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Abstract

During an English auction, bidders' behaviour conveys information on their valuation of the prize. So whenever valuations are not independent, a bidder's strategy depends on the price at which his competitors drop out before he does. A ring of bidders can strategically manipulate the information reported through its members' bids, in order to mislead other bidders into bidding less aggressively and so allow a ring member to bid more aggressively. Collusion increases the probability that a ring bidder wins the auction and reduces the price he pays. The presence of a ring harms other bidders (as well as the seller) and reduces efficiency.

Suggested Citation

  • Marco Pagnozzi, 2004. "Bids as a Vehicle of (Mis)Information: Collusion in English Auctions with Affiliated Values," CSEF Working Papers 127, Centre for Studies in Economics and Finance (CSEF), University of Naples, Italy.
    • Handle: RePEc:sef:csefwp:127
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    Cited by:

    1. Wang, Hong, 2017. "Information acquisition versus information manipulation in multi-period procurement markets," Information Economics and Policy, Elsevier, vol. 40(C), pages 48-59.
    2. Paul Klemperer, 2007. "Bidding Markets," Journal of Competition Law and Economics, Oxford University Press, vol. 3(1), pages 1-47.
    3. Ceesay, Muhammed, 2023. "Secret vs Public Rings in Common Value Auctions," EconStor Preprints 279484, ZBW - Leibniz Information Centre for Economics.
    4. Seres, Gyula, 2017. "Auction cartels and the absence of efficient communication," International Journal of Industrial Organization, Elsevier, vol. 52(C), pages 282-306.

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    More about this item

    Keywords

    auctions; collusion;

    JEL classification:

    • D44 - Microeconomics - - Market Structure, Pricing, and Design - - - Auctions

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