On the Conjunction Fallacy in Probability Judgment: New Experimental Evidence
Abstract
This paper reports the results of a series of experiments designed to test whether and to what extent individuals succumb to the conjunction fallacy. Using an experimental design of Kahneman and Tversky (1983), it finds that given mild incentives, the proportion of individuals who violate the conjunction principle is significantly lower than that reported by Kahneman and Tversky. Moreover, when subjects are allowed to consult with other subjects, these proportions fall dramatically, particularly when the size of the group rises from two to three. These findings cast serious doubts about the importance and robustness of such violations for the understanding of real-life economic decisions.Download Info
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Paper provided by Department of Economics, UC Santa Barbara in its series University of California at Santa Barbara, Economics Working Paper Series with number qt2dn4t727.Length:
Date of creation: 11 Oct 2008
Date of revision:
Handle: RePEc:cdl:ucsbec:qt2dn4t727
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Keywords: Conjunction fallacy; representativeness bias; group consultation; incentives;References
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Citations
Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.Cited by:
- Matthias Sutter, 2008.
"Individual behavior and group membership: Comment,"
Jena Economic Research Papers
2008-075, Friedrich-Schiller-University Jena, Max-Planck-Institute of Economics.
- Matthias Sutter, 2009. "Individual Behavior and Group Membership: Comment," American Economic Review, American Economic Association, vol. 99(5), pages 2247-57, December.
- Matthias Sutter, 2008. "Individual behavior and group membership: Comment," Working Papers 2008-23, Faculty of Economics and Statistics, University of Innsbruck.
- Charness, Gary & Karni, Edi & Levin, Dan, 2010.
"On the conjunction fallacy in probability judgment: New experimental evidence regarding Linda,"
Games and Economic Behavior,
Elsevier, vol. 68(2), pages 551-556, March.
- Edi Karni, 2009. "On the Conjunction Fallacy in Probability Judgment: New Experimental Evidence Regarding Linda," Economics Working Paper Archive 552, The Johns Hopkins University,Department of Economics.
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