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An expected utility maximizer walks into a bar... |
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| Authors: | Daniel R Burghart Paul W Glimcher Stephanie C Lazzaro |
| Institution: | 1. Department of Economics, University of Zürich, Blümlisalpstrasse 10, 8006, Zürich, Switzerland 2. Center for Neuroeconomics, New York University, 4 Washington Place, Room 809, New York, NY, 10003, USA 3. Institute of Cognitive Neuroscience, University College London, 26 Bedford Way, London, WC1H0AP, UK |
| Abstract: | We conducted field experiments at a bar to test whether blood alcohol concentration (BAC) correlates with violations of the generalized axiom of revealed preference (GARP) and the independence axiom. We found that individuals with BACs well above the legal limit for driving adhere to GARP and independence at rates similar to those who are sober. This finding led to the fielding of a third experiment to explore how risk preferences might vary as a function of BAC. We found gender-specific effects: Men did not exhibit variations in risk preferences across BACs. In contrast, women were more risk averse than men at low BACs but exhibited increasing tolerance towards risks as BAC increased. Based on our estimates, men and women’s risk preferences are predicted to be identical at BACs nearly twice the legal limit for driving. We discuss the implications for policy-makers. |
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