IDEAS home Printed from https://ideas.repec.org/p/zbw/vfsc12/62041.html
   My bibliography  Save this paper

On the Optimal Size of Committees of Experts

Author

Listed:
  • 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
    as

    Download full text from publisher

    File URL: https://www.econstor.eu/bitstream/10419/62041/1/VfS_2012_pid_310.pdf
    Download Restriction: no
    ---><---

    Other versions of this item:

    References listed on IDEAS

    as
    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. Hahn, Volker, 2011. "Sequential aggregation of verifiable information," Journal of Public Economics, Elsevier, vol. 95(11), pages 1447-1454.
    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. 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.
    6. Dino Gerardi & Leeat Yariv, 2008. "Costly Expertise," American Economic Review, American Economic Association, vol. 98(2), pages 187-193, May.
    7. 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.
    8. César Martinelli, 2007. "Rational ignorance and voting behavior," International Journal of Game Theory, Springer;Game Theory Society, vol. 35(3), pages 315-335, February.
    9. 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.
    10. Stergios Skaperdas, 1996. "Contest success functions (*)," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 7(2), pages 283-290.
    11. Marco Ottaviani & Peter Norman Sørensen, 2006. "Reputational cheap talk," RAND Journal of Economics, RAND Corporation, vol. 37(1), pages 155-175, March.
    12. 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.
    13. 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.
    14. Bengt Holmstrom, 1999. "Managerial Incentive Problems: A Dynamic Perspective," NBER Working Papers 6875, National Bureau of Economic Research, Inc.
    15. 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.
    16. 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.
    17. Milgrom, Paul R, 1979. "A Convergence Theorem for Competitive Bidding with Differential Information," Econometrica, Econometric Society, vol. 47(3), pages 679-688, May.
    18. , & ,, 2009. "A resurrection of the Condorcet Jury Theorem," Theoretical Economics, Econometric Society, vol. 4(2), June.
    19. Marco Ottaviani & Peter Norman Sorensen, 2006. "Reputational Cheap Talk," RAND Journal of Economics, The RAND Corporation, vol. 37(1), pages 155-175, Spring.
    20. Hahn, Volker, 2008. "Committees, sequential voting and transparency," Mathematical Social Sciences, Elsevier, vol. 56(3), pages 366-385, November.
    21. Nicola Persico, 2004. "Committee Design with Endogenous Information," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 71(1), pages 165-191.
    22. 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.
    23. 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.
    24. Milgrom, Paul R & Weber, Robert J, 1982. "A Theory of Auctions and Competitive Bidding," Econometrica, Econometric Society, vol. 50(5), pages 1089-1122, September.
    25. Mathis, Jã‰Rã”Me, 2011. "Deliberation with Evidence," American Political Science Review, Cambridge University Press, vol. 105(3), pages 516-529, August.
    26. Wit, Jorgen, 1998. "Rational Choice and the Condorcet Jury Theorem," Games and Economic Behavior, Elsevier, vol. 22(2), pages 364-376, February.
    27. 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.
    28. Crawford, Vincent P & Sobel, Joel, 1982. "Strategic Information Transmission," Econometrica, Econometric Society, vol. 50(6), pages 1431-1451, November.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Hahn, Volker, 2017. "Committee design with endogenous participation," Games and Economic Behavior, Elsevier, vol. 102(C), pages 388-408.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Volker Hahn, 2017. "On the drawbacks of large committees," International Journal of Game Theory, Springer;Game Theory Society, vol. 46(2), pages 563-582, May.
    2. Hahn, Volker, 2017. "Committee design with endogenous participation," Games and Economic Behavior, Elsevier, vol. 102(C), pages 388-408.
    3. Hahn, Volker, 2011. "Sequential aggregation of verifiable information," Journal of Public Economics, Elsevier, vol. 95(11), pages 1447-1454.
    4. Alexander Lundberg, 2020. "The importance of expertise in group decisions," Social Choice and Welfare, Springer;The Society for Social Choice and Welfare, vol. 55(3), pages 495-521, October.
    5. Li Hao & Wing Suen, 2009. "Viewpoint: Decision-making in committees," Canadian Journal of Economics, Canadian Economics Association, vol. 42(2), pages 359-392, May.
    6. Breitmoser, Yves & Valasek, Justin, 2017. "A rationale for unanimity in committees," Discussion Papers, Research Unit: Economics of Change SP II 2017-308, WZB Berlin Social Science Center.
    7. Jun Chen, 2021. "The Condorcet Jury Theorem with Information Acquisition," Games, MDPI, vol. 12(4), pages 1-33, October.
    8. Triossi, Matteo, 2013. "Costly information acquisition. Is it better to toss a coin?," Games and Economic Behavior, Elsevier, vol. 82(C), pages 169-191.
    9. Keiichi Morimoto, 2021. "Information Use and the Condorcet Jury Theorem," Mathematics, MDPI, vol. 9(10), pages 1-22, May.
    10. Midjord, Rune & Rodríguez Barraquer, Tomás & Valasek, Justin, 2021. "When voters like to be right: An analysis of the Condorcet Jury Theorem with mixed motives," Journal of Economic Theory, Elsevier, vol. 198(C).
    11. Jean-François Laslier & Jörgen Weibull, 2008. "Committee decisions: Optimality and Equilibrium," Working Papers halshs-00121741, HAL.
    12. 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.
    13. Gersbach, Hans & Mamageishvili, Akaki & Tejada, Oriol, 2022. "Appointed learning for the common good: Optimal committee size and monetary transfers," Games and Economic Behavior, Elsevier, vol. 136(C), pages 153-176.
    14. Jianan Wang, 2021. "Evidence and fully revealing deliberation with non-consequentialist jurors," Public Choice, Springer, vol. 189(3), pages 515-531, December.
    15. Hongbin Cai, 2009. "Costly participation and heterogeneous preferences in informational committees," RAND Journal of Economics, RAND Corporation, vol. 40(1), pages 173-189, March.
    16. Xie, Yinxi & Xie, Yang, 2017. "Machiavellian experimentation," Journal of Comparative Economics, Elsevier, vol. 45(4), pages 685-711.
    17. Liu, Shuo, 2019. "Voting with public information," Games and Economic Behavior, Elsevier, vol. 113(C), pages 694-719.
    18. Jianan Wang, 2022. "Partially verifiable deliberation in voting," Public Choice, Springer, vol. 190(3), pages 457-481, March.
    19. Sourav Bhattacharya, 2006. "Preference Monotonicity and Information Aggregation in Elections," Working Paper 325, Department of Economics, University of Pittsburgh, revised Dec 2008.
    20. Kawamura, Kohei, 2013. "Eliciting information from a large population," Journal of Public Economics, Elsevier, vol. 103(C), pages 44-54.

    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

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:zbw:vfsc12:62041. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: ZBW - Leibniz Information Centre for Economics (email available below). General contact details of provider: https://edirc.repec.org/data/vfsocea.html .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.