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Social learning with private and common values

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  • Jacob Goeree

    ()

  • Thomas Palfrey
  • Brian Rogers

Abstract

We consider an environment where individuals sequentially choose among several actions. The payoff to an individual depends on her action choice, the state of the world, and an idiosyncratic, privately observed preference shock. Under weak conditions, as the number of individuals increases, the sequence of choices always reveals the state of the world. This contrasts with the familiar result for pure common-value environments where the state is never learned, resulting in herds or informational cascades. The medium run dynamics to convergence can be very complex and non-monotone: posterior beliefs may be concentrated on a wrong state for a long time, shifting suddenly to the correct state. Copyright Springer-Verlag Berlin/Heidelberg 2006

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Bibliographic Info

Article provided by Springer in its journal Economic Theory.

Volume (Year): 28 (2006)
Issue (Month): 2 (06)
Pages: 245-264

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Handle: RePEc:spr:joecth:v:28:y:2006:i:2:p:245-264

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Related research

Keywords: Social learning; Information aggregation.;

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Cited by:
  1. Levin, Dan & Peck, James, 2008. "Investment dynamics with common and private values," Journal of Economic Theory, Elsevier, vol. 143(1), pages 114-139, November.
  2. Kaufman, Noah, 2014. "Overcoming the barriers to the market performance of green consumer goods," Resource and Energy Economics, Elsevier, vol. 36(2), pages 487-507.
  3. Erik Eyster & Andrea Galeotti & Navin Kartik & Matthew Rabin, 2012. "Congested Observational Learning," Economics Discussion Papers 706, University of Essex, Department of Economics.
  4. Bar Ifrach & Costis Maglaras & Marco Scarsini, 2012. "Monopoly Pricing in the Presence of Social Learning," Working Papers 12-01, NET Institute, revised Sep 2012.
  5. Jacob Goeree & Thomas Palfrey & Brian Rogers, 2004. "Self-Correcting Information Cascades," Levine's Bibliography 122247000000000153, UCLA Department of Economics.
  6. Wiseman, Thomas, 2008. "Disagreement leads to complete learning: Sequential choice with continuous types," Economics Letters, Elsevier, vol. 100(1), pages 53-55, July.
  7. S. Ali & Navin Kartik, 2012. "Herding with collective preferences," Economic Theory, Springer, vol. 51(3), pages 601-626, November.
  8. Christoph Brunner & Jacob K. Goeree, 2009. "Wise crowds or wise minorities?," IEW - Working Papers 439, Institute for Empirical Research in Economics - University of Zurich.

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