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Sequential decisions with tests

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Author Info
Gill, David
Sgroi, Daniel

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Abstract

We consider a principal-agent problem where the principal wishes to be endorsed by a sequence of agents, but cannot truthfully reveal type. In the standard "herding" model, the agents learn from each other's decisions, which can lead to cascades on a given decision when later agents' private information is swamped. We augment the standard model to allow the principal to subject herself to a test designed to provide public information about her type. She must decide how tough a test to attempt from a continuum of test types, which involves trading off the higher probability of passing an easier test against the greater impact from passing a tougher test. We find that the principal will always choose to be tested, and will prefer a tough test to a neutral or easy one.

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File URL: http://www.sciencedirect.com/science/article/B6WFW-4KWK147-2/1/f6123485edc563959ad6601be2e0adea
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Publisher Info
Article provided by Elsevier in its journal Games and Economic Behavior.

Volume (Year): 63 (2008)
Issue (Month): 2 (July)
Pages: 663-678
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Handle: RePEc:eee:gamebe:v:63:y:2008:i:2:p:663-678

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Web page: http://www.elsevier.com/locate/inca/622836

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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. Albano, Gian Luigi & Lizzeri, Alessandro, 2001. "Strategic Certification and Provision of Quality," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 42(1), pages 267-83, February.
  3. David Gill & Daniel Sgroi, 2004. "The Superiority of Biased Reviewers in a Model of Simultaneous Sales," Economics Series Working Papers 206, University of Oxford, Department of Economics. [Downloadable!]
  4. 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)
  5. Taylor, Curtis R, 1999. "Time-on-the-Market as a Sign of Quality," Review of Economic Studies, Blackwell Publishing, vol. 66(3), pages 555-78, July. [Downloadable!] (restricted)
  6. Marco Ottaviani & Andrea Prat, 2001. "The Value of Public Information in Monopoly," Econometrica, Econometric Society, vol. 69(6), pages 1673-1683, November. [Downloadable!] (restricted)
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  7. 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)
  8. Lones Smith & Peter Sorensen, 2000. "Pathological Outcomes of Observational Learning," Econometrica, Econometric Society, vol. 68(2), pages 371-398, March.
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  9. Josh Lerner & Jean Tirole, 2004. "A Model of Forum Shopping, with Special Reference to Standard Setting Organizations," NBER Working Papers 10664, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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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. Klaus Kultti & Paavo Miettinen, 2007. "Herding with Costly Observation," Topics in Theoretical Economics, Berkeley Electronic Press, vol. 7(1), pages 1320-1320. [Downloadable!] (restricted)
  2. Gill, David & Sgroi, Daniel, 2008. "The Optimal Choice of Pre-launch Reviewer : How Best to Transmit Information using Tests and Conditional Pricing," The Warwick Economics Research Paper Series (TWERPS) 877, University of Warwick, Department of Economics. [Downloadable!]
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