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Sequential aggregation of verifiable information

  • Hahn, Volker

We introduce the notion of verifiable information into a model of sequential debate among experts who are motivated by career concerns. We show that self-censorship may hamper the efficiency of information aggregation, as experts withhold evidence contradicting the conventional wisdom. In this case, silence is telling and undermines the prevailing view over time if this view is incorrect. As a result, withholding arguments about the correct state of the world is only a temporary phenomenon, and the probability of a correct decision always converges to one as the group of experts becomes large. For small groups, a simple mechanism the principal can use to improve decision-making is to appoint a devil's advocate.

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Article provided by Elsevier in its journal Journal of Public Economics.

Volume (Year): 95 (2011)
Issue (Month): 11 ()
Pages: 1447-1454

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Handle: RePEc:eee:pubeco:v:95:y:2011:i:11:p:1447-1454
Contact details of provider: Web page: http://www.elsevier.com/locate/inca/505578

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  1. Wolinsky, Asher, 2003. "Information transmission when the sender's preferences are uncertain," Games and Economic Behavior, Elsevier, vol. 42(2), pages 319-326, February.
  2. Mathias Dewatripont & Jean Tirole, 2005. "Modes of Communication," Journal of Political Economy, University of Chicago Press, vol. 113(6), pages 1217-1238, December.
  3. Bikhchandani, Sushil & Hirshleifer, David & Welch, Ivo, 1992. "A Theory of Fads, Fashion, Custom, and Cultural Change in Informational Cascades," Journal of Political Economy, University of Chicago Press, vol. 100(5), pages 992-1026, October.
  4. Paul R. Milgrom, 1979. "Good Nevs and Bad News: Representation Theorems and Applications," Discussion Papers 407R, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
  5. repec:dau:papers:123456789/168 is not listed on IDEAS
  6. 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.
  7. Hans Gersbach & Marten Keil, 2005. "Productivity Improvements in Public Organisations," Economic Journal, Royal Economic Society, vol. 115(505), pages 671-688, 07.
  8. Scharfstein, David S & Stein, Jeremy C, 1990. "Herd Behavior and Investment," American Economic Review, American Economic Association, vol. 80(3), pages 465-79, June.
  9. Bauke Visser & Otto H. Swank, 2007. "On Committees of Experts," The Quarterly Journal of Economics, Oxford University Press, vol. 122(1), pages 337-372.
  10. Eddie Dekel & Michele Piccione, 1997. "On the Equivalence of Simultaneous and Sequential Binary Elections," Discussion Papers 1206, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
  11. Patrick Bolton & Mathias Dewatripont, 2005. "Contract Theory," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262025760.
  12. Abhijit V. Banerjee, 1992. "A Simple Model of Herd Behavior," The Quarterly Journal of Economics, Oxford University Press, vol. 107(3), pages 797-817.
  13. Crawford, Vincent P & Sobel, Joel, 1982. "Strategic Information Transmission," Econometrica, Econometric Society, vol. 50(6), pages 1431-51, November.
  14. Ben-Yashar, Ruth C & Nitzan, Shmuel I, 1997. "The Optimal Decision Rule for Fixed-Size Committees in Dichotomous Choice Situations: The General Result," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 38(1), pages 175-86, February.
  15. Battaglini, Marco, 2005. "Sequential voting with abstention," Games and Economic Behavior, Elsevier, vol. 51(2), pages 445-463, May.
  16. Glazer, Jacob & Rubinstein, Ariel, 1998. "Motives and Implementation: On the Design of Mechanisms to Elicit Opinions," Journal of Economic Theory, Elsevier, vol. 79(2), pages 157-173, April.
  17. Bengt Holmström, 1999. "Managerial Incentive Problems: A Dynamic Perspective," Review of Economic Studies, Oxford University Press, vol. 66(1), pages 169-182.
  18. Steven Callander, 2007. "Bandwagons and Momentum in Sequential Voting," Review of Economic Studies, Oxford University Press, vol. 74(3), pages 653-684.
  19. S. Ali & Navin Kartik, 2012. "Herding with collective preferences," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 51(3), pages 601-626, November.
  20. Elisabeth Schulte, 2006. "Information Aggregation and Preference Heterogeneity in Committees," JEPS Working Papers 06-003, JEPS.
  21. Jerome Mathis, 2006. "Deliberation with Partially Verifiable Information," THEMA Working Papers 2006-03, THEMA (THéorie Economique, Modélisation et Applications), Université de Cergy-Pontoise.
  22. Wit, Jorgen, 1998. "Rational Choice and the Condorcet Jury Theorem," Games and Economic Behavior, Elsevier, vol. 22(2), pages 364-376, February.
  23. Eddie Dekel & Michele Piccione, 2000. "Sequential Voting Procedures in Symmetric Binary Elections," Journal of Political Economy, University of Chicago Press, vol. 108(1), pages 34-55, February.
  24. Giovannoni, Francesco & Seidmann, Daniel J., 2007. "Secrecy, two-sided bias and the value of evidence," Games and Economic Behavior, Elsevier, vol. 59(2), pages 296-315, May.
  25. Marco Ottaviani & Peter Norman Sørensen, 2006. "Reputational cheap talk," RAND Journal of Economics, RAND Corporation, vol. 37(1), pages 155-175, 03.
  26. Hahn, Volker, 2008. "Committees, sequential voting and transparency," Mathematical Social Sciences, Elsevier, vol. 56(3), pages 366-385, November.
  27. H.S. Shin, 1994. "News Management and the Value of Firms," RAND Journal of Economics, The RAND Corporation, vol. 25(1), pages 58-71, Spring.
  28. Masahiro Okuno-Fujiwara & Andrew Postlewaite & Kotaro Suzumura, 1990. "Strategic Information Revelation," Review of Economic Studies, Oxford University Press, vol. 57(1), pages 25-47.
  29. repec:rje:randje:v:37:y:2006:1:p:155-175 is not listed on IDEAS
  30. Sanford Grossman & Oliver Hart, . "Disclosure Laws and Takeover Bids," Rodney L. White Center for Financial Research Working Papers 23-79, Wharton School Rodney L. White Center for Financial Research.
  31. 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.
  32. Grossman, Sanford J, 1981. "The Informational Role of Warranties and Private Disclosure about Product Quality," Journal of Law and Economics, University of Chicago Press, vol. 24(3), pages 461-83, December.
  33. Ottaviani, Marco & Sorensen, Peter, 2001. "Information aggregation in debate: who should speak first?," Journal of Public Economics, Elsevier, vol. 81(3), pages 393-421, September.
  34. Lipman Barton L. & Seppi Duane J., 1995. "Robust Inference in Communication Games with Partial Provability," Journal of Economic Theory, Elsevier, vol. 66(2), pages 370-405, August.
  35. Daniel J. Seidmann & Eyal Winter, 1997. "Strategic Information Transmission with Verifiable Messages," Econometrica, Econometric Society, vol. 65(1), pages 163-170, January.
  36. Forges, Francoise & Koessler, Frederic, 2005. "Communication equilibria with partially verifiable types," Journal of Mathematical Economics, Elsevier, vol. 41(7), pages 793-811, November.
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