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Consistency and Heterogeneity of Individual Behavior under Uncertainty

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Author Info
Syngjoo Choi
Raymond Fisman
Douglas Gale
Shachar Kariv

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Abstract

By using graphical representations of simple portfolio choice problems, we generate a very rich dataset to study behavior under uncertainty at the level of the individual subject. We test the data for consistency with the maximization hypothesis, and we estimate preferences using a two-parameter utility function based on Faruk Gul (1991). This specification provides a good interpretation of the data at the individual level and can account for the highly heterogeneous behaviors observed in the laboratory. The parameter estimates jointly describe attitudes toward risk and allow us to characterize the distribution of risk preferences in the population. (JEL D11, D14, D81, G11)

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File URL: http://hdl.handle.net/10.1257/aer.97.5.1921
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Publisher Info
Article provided by American Economic Association in its journal American Economic Review.

Volume (Year): 97 (2007)
Issue (Month): 5 (December)
Pages: 1921-1938
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Handle: RePEc:aea:aecrev:v:97:y:2007:i:5:p:1921-1938

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  1. Alessandro Bucciol & Raffaele Miniaci, 2008. "Household Portfolios and Implicit Risk Aversion," Working Papers 0808, University of Brescia, Department of Economics. [Downloadable!]
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This page was last updated on 2008-11-9.


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