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Collusion in Auctions with Constrained Bids: Theory and Evidence from Public Procurement

Author

Listed:
  • Sylvain Chassang

    (New York University)

  • Juan Ortner

    (Boston University)

Abstract

We study the mechanics of cartel enforcement and its interaction with bidding constraints in the context of repeated procurement auctions. Under collusion, bidding constraints weaken cartels by limiting the scope for punishment. This yields a test of repeated collusive behavior exploiting the counter-intuitive prediction that introducing minimum prices can lower the distribution of winning bids. The model’s predictions are borne out in procurement data from Japan, where we find evidence that collusion is weakened by the introduction of minimum prices. A robust design insight is that setting a minimum price at the bottom of the observed distribution of winning bids necessarily improves over a minimum price of zero.

Suggested Citation

  • Sylvain Chassang & Juan Ortner, 2017. "Collusion in Auctions with Constrained Bids: Theory and Evidence from Public Procurement," Working Papers 072_2015, Princeton University, Department of Economics, Econometric Research Program..
  • Handle: RePEc:pri:metric:072_2015
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    References listed on IDEAS

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    More about this item

    Keywords

    collusion; cartel enforcement; minimum prices; entry deterrence; procurement;
    All these keywords.

    JEL classification:

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

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