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On the Optimal Size of Committees of Experts

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  • Hahn, Volker

Abstract

What is the optimal size of expert committees? To address this question, I present a model of a committee of experts with career concerns. Each expert may observe an argument about the state of the world and is unsure about the argument s soundness. Experts may remain silent or compete for the opportunity to announce an argument. I show that experts become more reluctant to speak in larger committees. This effect is sufficiently strong to make small groups of experts optimal.

Suggested Citation

  • Hahn, Volker, 2012. "On the Optimal Size of Committees of Experts," VfS Annual Conference 2012 (Goettingen): New Approaches and Challenges for the Labor Market of the 21st Century 62041, Verein für Socialpolitik / German Economic Association.
    • Handle: RePEc:zbw:vfsc12:62041
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    1. Patrick Bolton & Mathias Dewatripont, 2005. "Contract Theory," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262025760, December.
    2. Gerling, Kerstin & Gruner, Hans Peter & Kiel, Alexandra & Schulte, Elisabeth, 2005. "Information acquisition and decision making in committees: A survey," European Journal of Political Economy, Elsevier, vol. 21(3), pages 563-597, September.
    3. Bauke Visser & Otto H. Swank, 2007. "On Committees of Experts," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 122(1), pages 337-372.
    4. Timothy Feddersen & Wolfgang Pesendorfer, 1997. "Voting Behavior and Information Aggregation in Elections with Private Information," Econometrica, Econometric Society, vol. 65(5), pages 1029-1058, September.
    5. Hahn, Volker, 2011. "Sequential aggregation of verifiable information," Journal of Public Economics, Elsevier, vol. 95(11), pages 1447-1454.
    6. Feddersen, Timothy & Pesendorfer, Wolfgang, 1998. "Convicting the Innocent: The Inferiority of Unanimous Jury Verdicts under Strategic Voting," American Political Science Review, Cambridge University Press, vol. 92(1), pages 23-35, March.
    7. Milgrom, Paul R, 1979. "A Convergence Theorem for Competitive Bidding with Differential Information," Econometrica, Econometric Society, vol. 47(3), pages 679-688, May.
    8. Dino Gerardi & Leeat Yariv, 2008. "Costly Expertise," American Economic Review, American Economic Association, vol. 98(2), pages 187-193, May.
    9. Kaushik Mukhopadhaya, 2003. "Jury Size and the Free Rider Problem," The Journal of Law, Economics, and Organization, Oxford University Press, vol. 19(1), pages 24-44, April.
    10. César Martinelli, 2007. "Rational ignorance and voting behavior," International Journal of Game Theory, Springer;Game Theory Society, vol. 35(3), pages 315-335, February.
    11. , & ,, 2009. "A resurrection of the Condorcet Jury Theorem," Theoretical Economics, Econometric Society, vol. 4(2), June.
    12. Hans Gersbach & Volker Hahn, 2008. "Should the individual voting records of central bankers be published?," Social Choice and Welfare, Springer;The Society for Social Choice and Welfare, vol. 30(4), pages 655-683, May.
    13. Stergios Skaperdas, 1996. "Contest success functions (*)," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 7(2), pages 283-290.
    14. Marco Ottaviani & Peter Norman Sorensen, 2006. "Reputational Cheap Talk," RAND Journal of Economics, The RAND Corporation, vol. 37(1), pages 155-175, Spring.
    15. Marco Ottaviani & Peter Norman Sørensen, 2006. "Reputational cheap talk," RAND Journal of Economics, RAND Corporation, vol. 37(1), pages 155-175, March.
    16. Hahn, Volker, 2008. "Committees, sequential voting and transparency," Mathematical Social Sciences, Elsevier, vol. 56(3), pages 366-385, November.
    17. Hans Gersbach & Volker Hahn, 2012. "Information acquisition and transparency in committees," International Journal of Game Theory, Springer;Game Theory Society, vol. 41(2), pages 427-453, May.
    18. Nicola Persico, 2004. "Committee Design with Endogenous Information," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 71(1), pages 165-191.
    19. Li Hao & Wing Suen, 2009. "Viewpoint: Decision‐making in committees," Canadian Journal of Economics/Revue canadienne d'économique, John Wiley & Sons, vol. 42(2), pages 359-392, May.
    20. Robert Wilson, 1977. "A Bidding Model of Perfect Competition," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 44(3), pages 511-518.
    21. Austen-Smith, David & Banks, Jeffrey S., 1996. "Information Aggregation, Rationality, and the Condorcet Jury Theorem," American Political Science Review, Cambridge University Press, vol. 90(1), pages 34-45, March.
    22. Milgrom, Paul R & Weber, Robert J, 1982. "A Theory of Auctions and Competitive Bidding," Econometrica, Econometric Society, vol. 50(5), pages 1089-1122, September.
    23. Mathis, Jérôme, 2011. "Deliberation with Evidence," American Political Science Review, Cambridge University Press, vol. 105(3), pages 516-529, August.
    24. Wit, Jorgen, 1998. "Rational Choice and the Condorcet Jury Theorem," Games and Economic Behavior, Elsevier, vol. 22(2), pages 364-376, February.
    25. Bengt Holmström, 1999. "Managerial Incentive Problems: A Dynamic Perspective," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 66(1), pages 169-182.
    26. Crawford, Vincent P & Sobel, Joel, 1982. "Strategic Information Transmission," Econometrica, Econometric Society, vol. 50(6), pages 1431-1451, November.
    27. Ruth Ben-Yashar & Shmuel Nitzan, 2001. "The invalidity of the Condorcet Jury Theorem under endogenous decisional skills," Economics of Governance, Springer, vol. 2(3), pages 243-249, November.
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    Cited by:

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    More about this item

    JEL classification:

    • D71 - Microeconomics - - Analysis of Collective Decision-Making - - - Social Choice; Clubs; Committees; Associations
    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design
    • D70 - Microeconomics - - Analysis of Collective Decision-Making - - - General

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