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| Type | Working Paper |
| Scope | Discipline-based scholarship |
| Title | Risk and Rationality: Uncovering Heterogeneity in Probability Distortion |
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| Institution | University of Zurich |
| Series Name | Working paper series / Institute for Empirical Research in Economics |
| Number | No. 414 |
| ISSN | 1424-0459 |
| Date | 2009 |
| Abstract Text | It has long been recognized that there is considerable heterogeneity in individual risk taking behavior but little is known about the distributionnof risk taking types. We present a parsimonious characterization of risk taking behavior by estimating a finite mixture regression model for three different experimental data sets, two Swiss and one Chinese, over a large number of real gains and losses. We find two distinct types of individuals: In all three data sets, the choices of roughly 80% of the subjects exhibitnsignificant deviations from linear probability weighting, consistent with prospect theory. 20% of the subjects weight probabilities near linearly and behave essentially as expected value maximizers. Moreover, individuals are cleanly assigned to one type with probabilities close to unity. The reliability and robustness of our classification suggest using a mix of preference theories in applied economic modeling. |
| Official URL | http://www.econ.uzh.ch/wp.html |
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