The Value of Privacy in Cartels: An Analysis of the Inner Workings of a Bidding Ring

Working Paper: NBER ID: w28539

Authors: Kei Kawai; Jun Nakabayashi; Juan M. Ortner

Abstract: We study the inner workings of a bidding cartel focusing on the way in which bidders communicate with one another regarding how each bidder should bid. We show that the designated winner of the cartel can attain higher payoffs by randomizing its bid and keeping it secret from other bidders when defection is a concern. Intuitively, randomization makes defection less attractive as potential defectors face the risk of not winning the auction even if they deviate. We illustrate how our theoretical predictions are borne out in practice by studying a bidding cartel that operated in the town of Kumatori, Japan.

Keywords: No keywords provided

JEL Codes: L41


Causal Claims Network Graph

Edges that are evidenced by causal inference methods are in orange, and the rest are in light blue.


Causal Claims

CauseEffect
secrecy of the winning bid (D44)incentive to defect (C72)
randomizing bids (D44)secrecy of the winning bid (D44)
secrecy of the winning bid (D44)higher payoffs for designated winner (J33)
incentive compatibility (IC) constraints (D10)potential for defection (F55)
secrecy of the winning bid (D44)reduced attractiveness of defection (C72)
public knowledge of the bid (D44)defection (Y60)

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