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Informational Herding and Optimal Experimentation

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Author Info
Smith, L.
Sorensen, P.

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Abstract

We explore the constrained efficient observational learning model - as when individuals care about successors, or are so induced by an informationlly-constrained social planner. We find that when the herding externality is correctly internalized in this fashion, incorrect herds still obtain. To describe behaviour in this model, we exhibit a set of indices that capture the privately extimated social value of every action.

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Publisher Info
Paper provided by Economics Group, Nuffield College, University of Oxford in its series Economics Papers with number 139.

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Length: 24 pages
Date of creation: 1997
Date of revision:
Handle: RePEc:nuf:econwp:139

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Web page: http://www.nuff.ox.ac.uk/economics/

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Related research
Keywords: LEARNING INFORMATION EXPERIMENTATION

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Find related papers by JEL classification:
C90 - Mathematical and Quantitative Methods - - Design of Experiments - - - General
D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search, Learning, and Information

References listed on IDEAS
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.:

  1. Sgroi, Daniel, 2002. "Optimizing Information in the Herd: Guinea Pigs, Profits, and Welfare," Games and Economic Behavior, Elsevier, vol. 39(1), pages 137-166, April. [Downloadable!] (restricted)
    Other versions:
  2. Chamley, Christophe & Gale, Douglas, 1994. "Information Revelation and Strategic Delay in a Model of Investment," Econometrica, Econometric Society, vol. 62(5), pages 1065-85, September. [Downloadable!] (restricted)
    Other versions:
  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. [Downloadable!] (restricted)
  4. Burdett, Kenneth, 1996. "Truncated means and variances," Economics Letters, Elsevier, vol. 52(3), pages 263-267, September. [Downloadable!] (restricted)
  5. Doyle, Matthew, 2002. "Informational Externalities, Strategic Delay, and the Search for Optimal Policy," Staff General Research Papers 10046, Iowa State University, Department of Economics. [Downloadable!]
  6. 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)
  7. Rothschild, Michael, 1974. "A two-armed bandit theory of market pricing," Journal of Economic Theory, Elsevier, vol. 9(2), pages 185-202, October. [Downloadable!] (restricted)
  8. Aghion Philippe & Bolton, Patrick & Harris Christopher & Jullien Bruno, 1991. "Optimal learning by experimentation," CEPREMAP Working Papers (Couverture Orange) 9104, CEPREMAP.
    Other versions:
  9. Lones Smith & Peter Sorensen, 2000. "Pathological Outcomes of Observational Learning," Econometrica, Econometric Society, vol. 68(2), pages 371-398, March.
    Other versions:
  10. McLennan, Andrew, 1984. "Price dispersion and incomplete learning in the long run," Journal of Economic Dynamics and Control, Elsevier, vol. 7(3), pages 331-347, September. [Downloadable!] (restricted)
  11. Vives, Xavier, 1993. "How Fast Do Rational Agents Learn?," Review of Economic Studies, Blackwell Publishing, vol. 60(2), pages 329-47, April. [Downloadable!] (restricted)
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  12. Dow, James, 1991. "Search Decisions with Limited Memory," Review of Economic Studies, Blackwell Publishing, vol. 58(1), pages 1-14, January. [Downloadable!] (restricted)
  13. Amir, Rabah, 1996. "Sensitivity analysis of multisector optimal economic dynamics," Journal of Mathematical Economics, Elsevier, vol. 25(1), pages 123-141. [Downloadable!] (restricted)
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  14. Aghion, Philippe, et al, 1991. "Optimal Learning by Experimentation," Review of Economic Studies, Blackwell Publishing, vol. 58(4), pages 621-54, July. [Downloadable!] (restricted)
Full references

Cited by:
(explanations, 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.)

  1. Christos Koulovatianos & Leonard J. Mirman & Marc Santugini, 2006. "Investment in a Monopoly with Bayesian Learning," Vienna Economics Papers 0603, University of Vienna, Department of Economics. [Downloadable!]
  2. Jacob K. Goeree & Thomas R. Palfrey & Brian W. Rogers & Richard D. McKelvey, 2006. "Self-Correcting Information Cascades," Levine's Bibliography 321307000000000211, UCLA Department of Economics. [Downloadable!]
    Other versions:
  3. Doyle, Matthew, 2002. "Informational Externalities, Strategic Delay, and the Search for Optimal Policy," Staff General Research Papers 10046, Iowa State University, Department of Economics. [Downloadable!]
  4. Alessandro Lizzeri & Marciano Siniscalchi, 2006. "Parental Guidance and Supervised Learning," Discussion Papers 1432, Northwestern University, Center for Mathematical Studies in Economics and Management Science. [Downloadable!]
    Other versions:
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