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Information Aggregation with Random Ordering: Cascades and Overconfidence

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Author Info
Markus Noeth (University of Mannheim)
Martin Weber (University of Mannheim)
Abstract

In economic models, it is usually assumed that agents aggregate their private and all available public information correctly and completely. In this experiment, we identify subjects' updating procedures and analyze the consequences for the aggregation process. Decisions can be based on private information with known quality and observed decisions of other participants. In this setting with random ordering, information cascades are observable and agents' overconfidence has a positive effect on avoiding a non-revealing aggregation process but it reduces welfare in general.

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Paper provided by Econometric Society in its series Econometric Society World Congress 2000 Contributed Papers with number 1592.

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Date of creation: 01 Aug 2000
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Handle: RePEc:ecm:wc2000:1592

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Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:

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  3. De Long, J Bradford & Andrei Shleifer & Lawrence H. Summers & Robert J. Waldmann, 1990. "Noise Trader Risk in Financial Markets," Journal of Political Economy, University of Chicago Press, vol. 98(4), pages 703-38, August. [Downloadable!] (restricted)
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  4. Camerer, Colin, 1989. " Bubbles and Fads in Asset Prices," Journal of Economic Surveys, Blackwell Publishing, vol. 3(1), pages 3-41.
  5. Banerjee, Abhijit V, 1992. "A Simple Model of Herd Behavior," The Quarterly Journal of Economics, MIT Press, vol. 107(3), pages 797-817, August. [Downloadable!] (restricted)
  6. Jianbo Zhang, 1997. "Strategic Delay and the Onset of Investment Cascades," RAND Journal of Economics, The RAND Corporation, vol. 28(1), pages 188-205, Spring. [Downloadable!] (restricted)
  7. Camerer, Colin & Weigelt, Keith, 1991. "Information Mirages in Experimental Asset Markets," Journal of Business, University of Chicago Press, vol. 64(4), pages 463-93, October. [Downloadable!] (restricted)
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  11. Gul, Faruk & Lundholm, Russell, 1995. "Endogenous Timing and the Clustering of Agents' Decisions," Journal of Political Economy, University of Chicago Press, vol. 103(5), pages 1039-66, October. [Downloadable!] (restricted)
  12. Gervais, Simon & Odean, Terrance, 2001. "Learning to be Overconfident," Review of Financial Studies, Oxford University Press for Society for Financial Studies, vol. 14(1), pages 1-27.
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  13. 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. [Downloadable!] (restricted)
  14. Avery, Christopher & Zemsky, Peter, 1998. "Multidimensional Uncertainty and Herd Behavior in Financial Markets," American Economic Review, American Economic Association, vol. 88(4), pages 724-48, September. [Downloadable!] (restricted)
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  16. KENT D. DANIEL & David Hirshleifer & AVANIDHAR SUBRAHMANYAM, 2004. "A Theory of Overconfidence, Self-Attribution, and Security Market Under- and Over-reactions," Finance 0412006, EconWPA. [Downloadable!]
  17. Lee, In Ho, 1998. "Market Crashes and Informational Avalanches," Review of Economic Studies, Blackwell Publishing, vol. 65(4), pages 741-59, October. [Downloadable!] (restricted)
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  1. Dittrich, Dennis & Gueth, Werner & Maciejovsky, Boris, 2001. "Overconfidence in Investment Decisions: An Experimental Approach," CESifo Working Paper Series CESifo Working Paper No. , CESifo Group Munich. [Downloadable!]
    Other versions:
  2. Shunichiro Sasaki, 2004. "Signal Qualities, Order of Decisions, and Informational Cascades: Experimental Evidences," ISER Discussion Paper 0621, Institute of Social and Economic Research, Osaka University. [Downloadable!]
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