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A Simple Note on Informational Cascades

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  • Fiore, Annamaria
  • Morone, Andrea

Abstract

Seminal models of herd behaviour and informational cascades point out existence of negative information externalities, and propose to ?destroy? information in order to achieve social improvements. Although in the last years many features of herd behaviour and informational cascades have been studied, this particular aspect has never been extensively analysed. In this article we try to fill this gap, investigating both theoretically and experimentally whether and to which extent destroying information can improve welfare. Our empirical results show that this decisional mechanism actually leads to a behaviour pattern more consistent with the theory that in turn produces the predicted efficiency gain. --

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File URL: http://dx.doi.org/10.5018/economics-ejournal.ja.2008-1
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Bibliographic Info

Article provided by Kiel Institute for the World Economy in its journal Economics: The Open-Access, Open-Assessment E-Journal.

Volume (Year): 2 (2008)
Issue (Month): 1 ()
Pages: 1-21

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Handle: RePEc:zbw:ifweej:6905

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Keywords: Informational cascades; information externality; individual decision making; experiment;

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References

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  1. Becker, Gary S, 1991. "A Note on Restaurant Pricing and Other Examples of Social Influences on Price," Journal of Political Economy, University of Chicago Press, vol. 99(5), pages 1109-16, October.
  2. 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.
  3. Louise Allsopp & John Hey, 2000. "Two Experiments to Test a Model of Herd Behaviour," Experimental Economics, Springer, vol. 3(2), pages 121-136, October.
  4. Anderson, Lisa R & Holt, Charles A, 1997. "Information Cascades in the Laboratory," American Economic Review, American Economic Association, vol. 87(5), pages 847-62, December.
  5. Jeffrey M. Wooldridge, 2005. "Simple solutions to the initial conditions problem in dynamic, nonlinear panel data models with unobserved heterogeneity," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 20(1), pages 39-54.
  6. Abhijit Banerjee & Drew Fudenberg, 2010. "Word of Mouth Learning," Levine's Working Paper Archive 723, David K. Levine.
  7. Andrea Morone, 2004. "Financial Market in the Laboratory," Experimental 0401002, EconWPA.
  8. Andrea Morone & Eleni Samanidou, 2007. "A simple note on Herd Behaviour," series 0013, Dipartimento di Scienze Economiche e Metodi Matematici - Università di Bari, revised Feb 2007.
  9. Annamaria Fiore & Andrea Morone, 2005. "Is playing alone in the darkness sufficient to prevent informational cascades?," Experimental 0503002, EconWPA.
  10. Ivan Pastine & Tuvana Pastine, 2006. "Signal Accuracy and Informational Cascades," Working Papers 200620, School Of Economics, University College Dublin.
  11. Selten, Reinhard & Joachim Buchta, 1994. "Experimental Sealed Bid First Price Auctions with Directly Observed Bid Functions," Discussion Paper Serie B 270, University of Bonn, Germany.
  12. John D. Hey & Andrea Morone, 2004. "Do Markets Drive Out Lemmings-or Vice Versa?," Economica, London School of Economics and Political Science, vol. 71(284), pages 637-659, November.
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Cited by:
  1. Andrea Morone & Eleni Samanidou, 2008. "A simple note on herd behaviour," Journal of Evolutionary Economics, Springer, vol. 18(5), pages 639-646, October.
    • Andrea Morone & Eleni Samanidou, 2007. "A simple note on Herd Behaviour," series 0013, Dipartimento di Scienze Economiche e Metodi Matematici - Universit√† di Bari, revised Feb 2007.
  2. Andrea Morone & Giovanni Ferri, 2008. "The Effect of Rating Agencies on Herd Behaviour," series 0022, Dipartimento di Scienze Economiche e Metodi Matematici - Università di Bari, revised Nov 2008.

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