Updating beliefs with imperfect signals : experimental evidence
AbstractThis article analyses belief updating when agents receive a signal that restricts the number of possible states of the world. We create an experiment on individual choice under uncertainty. In this experiment, the subject observes an urn, containing yellow and blue balls, whose composition is partially revealed. The subject has to assess the composition of the urn and form an initial belief. Then, he receives a signal that restricts the set of the possible urns from which the initial observed sample is drawn. Once again, he has to estimate the composition of the urn. Our results show that, on the whole, this type of signal increases the frequency of correct assessment. However, differences appear between validating and invalidating signals (i.e. signals that either confirm or disprove the initial belief). The later significantly increase the probability to make a correct assessment whereas validating signals reduce the frequency of correct estimations. We find evidences of lack of persistence in choice under uncertainty. The literature shows that people may persist with their choice even when they are wrong. We show that they may also change even if they are right.
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Bibliographic InfoPaper provided by Groupe d'Analyse et de Théorie Economique (GATE), Centre national de la recherche scientifique (CNRS), Université Lyon 2, Ecole Normale Supérieure in its series Working Papers with number 1033.
Length: 28 pages
Date of creation: 2010
Date of revision:
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Beliefs; Imperfect Information; Experiment;
Other versions of this item:
- François Poinas & Julie Rosaz & Béatrice Roussillon, 2012. "Updating beliefs with imperfect signals: Experimental evidence," Journal of Risk and Uncertainty, Springer, vol. 44(3), pages 219-241, June.
- François Poinas & Julie Rosaz & Béatrice Roussillon, 2010. "Updating beliefs with imperfect signals: experimental evidence," Post-Print halshs-00550350, HAL.
- D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search, Learning, and Information
- C91 - Mathematical and Quantitative Methods - - Design of Experiments - - - Laboratory, Individual Behavior
This paper has been announced in the following NEP Reports:
- NEP-ALL-2011-01-03 (All new papers)
- NEP-CBE-2011-01-03 (Cognitive & Behavioural Economics)
- NEP-EXP-2011-01-03 (Experimental Economics)
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.:
- Grether, David M., .
"Bayes Rule as a Descriptive Model: The Representativeness Heuristic,"
Working Papers, California Institute of Technology, Division of the Humanities and Social Sciences
245, California Institute of Technology, Division of the Humanities and Social Sciences.
- Grether, David M, 1980. "Bayes Rule as a Descriptive Model: The Representativeness Heuristic," The Quarterly Journal of Economics, MIT Press, MIT Press, vol. 95(3), pages 537-57, November.
- Ouwersloot, Hans & Nijkamp, Peter & Rietveld, Piet, 1998. "Errors in probability updating behaviour : Measurement and impact analysis," Journal of Economic Psychology, Elsevier, vol. 19(5), pages 535-563, October.
- Charness, Gary & Levin, Dan, 2003.
"When Optimal Choices Feel Wrong: A Laboratory Study of Bayesian Updating, Complexity, and Affect,"
University of California at Santa Barbara, Economics Working Paper Series
qt7g63k28w, Department of Economics, UC Santa Barbara.
- Gary Charness & Dan Levin, 2005. "When Optimal Choices Feel Wrong: A Laboratory Study of Bayesian Updating, Complexity, and Affect," American Economic Review, American Economic Association, vol. 95(4), pages 1300-1309, September.
- Hoffman, Ross M. & Kagel, John H. & Levin, Dan, 2011. "Simultaneous versus sequential information processing," Economics Letters, Elsevier, vol. 112(1), pages 16-18, July.
- Friedman, Daniel, 1998. "Monty Hall's Three Doors: Construction and Deconstruction of a Choice Anomaly," American Economic Review, American Economic Association, vol. 88(4), pages 933-46, September.
- Aurélien Baillon & Han Bleichrodt & Umut Keskin & Olivier L'Haridon & Author-Name: Chen Li, 2013. "Learning under ambiguity: An experiment using initial public offerings on a stock market," Economics Working Paper Archive (University of Rennes 1 & University of Caen) 201331, Center for Research in Economics and Management (CREM), University of Rennes 1, University of Caen and CNRS.
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