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The effect of collusion on efficiency in experimental auctions

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  • Noussair, Charles N.
  • Seres, Gyula
Abstract
This paper examines the effect of collusion on allocative efficiency in a second-price sealed-bid auction, in which bidders' valuations have both private and common value components. We present a theoretical model which shows that explicit collusion improves average efficiency. Furthermore, a reduction in common value signal variance increases the efficiency of allocations when a cartel is present. We test for the presence of these patterns in a laboratory experiment. Subjects can choose whether to compete or to form a cartel. Colluding bidders can communicate and make side payments using a knockout auction. Our results show that a large majority of bidders joins a cartel and collusion has a negative impact on efficiency.

Suggested Citation

  • Noussair, Charles N. & Seres, Gyula, 2020. "The effect of collusion on efficiency in experimental auctions," Games and Economic Behavior, Elsevier, vol. 119(C), pages 267-287.
    • Handle: RePEc:eee:gamebe:v:119:y:2020:i:c:p:267-287
    DOI: 10.1016/j.geb.2019.11.002
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    Cited by:

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    3. Argenton, Cédric & Ivanova-Stenzel, Radosveta & Müller, Wieland, 2024. "Cournot meets Bayes-Nash: A discontinuity in behavior in finitely repeated duopoly games," Games and Economic Behavior, Elsevier, vol. 144(C), pages 1-12.
    4. Pacharasut Sujarittanonta & Ajalavat Viriyavipart, 2021. "Deterring collusion with a reserve price: an auction experiment," Experimental Economics, Springer;Economic Science Association, vol. 24(2), pages 536-557, June.
    5. Llorente-Saguer, Aniol & Zultan, Ro’i, 2017. "Collusion and information revelation in auctions," European Economic Review, Elsevier, vol. 95(C), pages 84-102.
    6. Agranov, Marina & Yariv, Leeat, 2018. "Collusion through communication in auctions," Games and Economic Behavior, Elsevier, vol. 107(C), pages 93-108.

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    More about this item

    Keywords

    Auction; Bidding ring; Information asymmetry; Experiment;
    All these keywords.

    JEL classification:

    • D44 - Microeconomics - - Market Structure, Pricing, and Design - - - Auctions
    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design
    • L41 - Industrial Organization - - Antitrust Issues and Policies - - - Monopolization; Horizontal Anticompetitive Practices
    • C92 - Mathematical and Quantitative Methods - - Design of Experiments - - - Laboratory, Group Behavior

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