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The value of public information in common-value Tullock contests

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Abstract

Consider a symmetric common-value Tullock contest with incomplete information in which the players’ cost of effort is the product of a random variable and a deterministic real function of effort, d. We show that the Arrow–Pratt curvature of d, Rd , determines the effect on equilibrium efforts and payoffs of the increased flexibility/ reduced commitment that more information introduces into the contest: If Rd is increasing, then effort decreases (increases) with the level of information when the cost of effort (value) is independent of the state of nature. Moreover, if Rd is increasing (decreasing), then the value of public information is nonnegative (nonpositive).

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  • Benyamin Shitovitz & Diego Moreno, "undated". "The value of public information in common-value Tullock contests," Working Papers WP2017/7, University of Haifa, Department of Economics.
    • Handle: RePEc:haf:huedwp:wp201707
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    Cited by:

    1. Alejandro Melo Ponce, 2018. "The Secret Behind The Tortoise and the Hare: Information Design in Contests," 2018 Papers pme809, Job Market Papers.
    2. Christian Ewerhart & Federico Quartieri, 2020. "Unique equilibrium in contests with incomplete information," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 70(1), pages 243-271, July.
    3. Fu, Qiang & Wu, Zenan & Zhu, Yuxuan, 2022. "On equilibrium existence in generalized multi-prize nested lottery contests," Journal of Economic Theory, Elsevier, vol. 200(C).
    4. Cohen, Din & Sela, Aner, 2020. "Common-value group contests with asymmetric information," Economics Letters, Elsevier, vol. 192(C).
    5. A. Aiche & E. Einy & O. Haimanko & D. Moreno & A. Sela & B. Shitovitz, 2019. "Information in Tullock contests," Theory and Decision, Springer, vol. 86(3), pages 303-323, May.
    6. Robertson, Matthew J., 2025. "Competitive outcomes in a Cournot-Tullock contest," Economics Letters, Elsevier, vol. 250(C).
    7. Christian Ewerhart & Julia Lareida, 2018. "Voluntary disclosure in asymmetric contests," ECON - Working Papers 279, Department of Economics - University of Zurich, revised Jul 2023.
    8. Ezra Einy & Diego Moreno & Aner Sela, 2020. "Continuity and robustness of Bayesian equilibria in Tullock contests," Economic Theory Bulletin, Springer;Society for the Advancement of Economic Theory (SAET), vol. 8(2), pages 333-345, October.
    9. Roy, Jaideep & Silvers, Randy & Sun, Ching-Jen, 2019. "Majoritarian preference, utilitarian welfare and public information in Cournot oligopoly," Games and Economic Behavior, Elsevier, vol. 116(C), pages 269-288.

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    JEL classification:

    • C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative Games
    • D44 - Microeconomics - - Market Structure, Pricing, and Design - - - Auctions
    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design

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