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Information Use and the Condorcet Jury Theorem

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  • Keiichi Morimoto

    (School of Political Science and Economics, Meiji University, 1-1, Kanda-Surugadai, Chiyoda-ku, Tokyo 101-8301, Japan)

Abstract

Using a simple model of a coordination game, this paper explores how the information use of individuals affects an optimal committee size. Although enlarging the committee promotes information aggregation, it also stimulates the members’ coordination motive and distorts their voting behavior through higher-order beliefs. On the determination of a finite optimal committee size, the direction and degree of strategic interactions matter. When the strategic complementarity among members is strong, a finite optimal committee size exists. In contrast, it does not exist under strategic substitution. This mechanism is applied to the design of monetary policy committees in a New Keynesian model in which a committee conducts monetary policy under imperfect information.

Suggested Citation

  • Keiichi Morimoto, 2021. "Information Use and the Condorcet Jury Theorem," Mathematics, MDPI, vol. 9(10), pages 1-22, May.
    • Handle: RePEc:gam:jmathe:v:9:y:2021:i:10:p:1098-:d:553633
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    References listed on IDEAS

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    1. Beetsma, Roel M W J & Jensen, Henrik, 1998. "Inflation Targets and Contracts with Uncertain Central Banker Preferences," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 30(3), pages 384-403, August.
    2. Andrea Prat, 2005. "The Wrong Kind of Transparency," American Economic Review, American Economic Association, vol. 95(3), pages 862-877, June.
    3. 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.
    4. Gilat Levy, 2007. "Decision Making in Committees: Transparency, Reputation, and Voting Rules," American Economic Review, American Economic Association, vol. 97(1), pages 150-168, March.
    5. Keiichi Morimoto, 2018. "Further Results on Preference Uncertainty and Monetary Conservatism," Economics Bulletin, AccessEcon, vol. 38(1), pages 583-592.
    6. Mechtenberg, Lydia & Tyran, Jean-Robert, 2019. "Voter motivation and the quality of democratic choice," Games and Economic Behavior, Elsevier, vol. 116(C), pages 241-259.
    7. 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.
    8. Stephen Hansen & Michael McMahon & Andrea Prat, 2018. "Transparency and Deliberation Within the FOMC: A Computational Linguistics Approach," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 133(2), pages 801-870.
    9. 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.
    10. Keiichi Morimoto, 2009. "Optimal Structure of Monetary Policy Committees," Discussion Papers in Economics and Business 09-36, Osaka University, Graduate School of Economics.
    11. Helge Berger & Volker Nitsch, 2011. "Too Many Cooks? Committees in Monetary Policy," Southern Economic Journal, John Wiley & Sons, vol. 78(2), pages 452-475, October.
    12. Sebastian Fehrler & Niall Hughes, 2018. "How Transparency Kills Information Aggregation: Theory and Experiment," American Economic Journal: Microeconomics, American Economic Association, vol. 10(1), pages 181-209, February.
    13. Großer, Jens & Seebauer, Michael, 2016. "The curse of uninformed voting: An experimental study," Games and Economic Behavior, Elsevier, vol. 97(C), pages 205-226.
    14. 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.
    15. Blinder, Alan S., 2007. "Monetary policy by committee: Why and how?," European Journal of Political Economy, Elsevier, vol. 23(1), pages 106-123, March.
    16. Martinelli, Cesar, 2006. "Would rational voters acquire costly information?," Journal of Economic Theory, Elsevier, vol. 129(1), pages 225-251, July.
    17. 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.
    18. , & ,, 2009. "A resurrection of the Condorcet Jury Theorem," Theoretical Economics, Econometric Society, vol. 4(2), June.
    19. Levy, Gilat, 2004. "Anti-herding and strategic consultation," European Economic Review, Elsevier, vol. 48(3), pages 503-525, June.
    20. Gerardi, Dino & Yariv, Leeat, 2008. "Information acquisition in committees," Games and Economic Behavior, Elsevier, vol. 62(2), pages 436-459, March.
    21. Anne Sibert, 2006. "Central Banking by Committee," International Finance, Wiley Blackwell, vol. 9(2), pages 145-168, August.
    22. Nicola Persico, 2004. "Committee Design with Endogenous Information," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 71(1), pages 165-191.
    23. EllenE. Meade & David Stasavage, 2008. "Publicity of Debate and the Incentive to Dissent: Evidence from the US Federal Reserve," Economic Journal, Royal Economic Society, vol. 118(528), pages 695-717, April.
    24. 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.
    25. Hao Li, 2001. "A Theory of Conservatism," Journal of Political Economy, University of Chicago Press, vol. 109(3), pages 617-636, June.
    26. Hongbin Cai, 2009. "Costly participation and heterogeneous preferences in informational committees," RAND Journal of Economics, RAND Corporation, vol. 40(1), pages 173-189, March.
    27. Oliveros, Santiago, 2013. "Abstention, ideology and information acquisition," Journal of Economic Theory, Elsevier, vol. 148(3), pages 871-902.
    28. Stephen Morris & Hyun Song Shin, 2002. "Social Value of Public Information," American Economic Review, American Economic Association, vol. 92(5), pages 1521-1534, December.
    29. Helge Berger & Volker Nitsc, 2011. "Too Many Cooks? Committees in Monetary Policy," Southern Economic Journal, John Wiley & Sons, vol. 78(2), pages 452-475, October.
    30. Bhattacharya, Sourav & Duffy, John & Kim, SunTak, 2017. "Voting with endogenous information acquisition: Experimental evidence," Games and Economic Behavior, Elsevier, vol. 102(C), pages 316-338.
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