The genetics of economic risk preferences
Version of Record online: 4 JUN 2009
Copyright © 2009 John Wiley & Sons, Ltd.
Journal of Behavioral Decision Making
Volume 22, Issue 4, pages 367–377, October 2009
How to Cite
Zyphur, M. J., Narayanan, J., Arvey, R. D. and Alexander, G. J. (2009), The genetics of economic risk preferences. J. Behav. Decis. Making, 22: 367–377. doi: 10.1002/bdm.643
- Issue online: 26 AUG 2009
- Version of Record online: 4 JUN 2009
- economic risk preferences;
- Minnesota Twin Registry
We examine the influence of genetics on economic risk preferences by administering a measure of these preferences to monozygotic (MZ) (i.e., identical) and dizygotic (DZ) (i.e., non-identical) twin pairs. Our analysis supports a dominant genetic effect and virtually no additive genetic effect on economic risk preferences, with the heritability of preferences estimated at 0.63. These findings suggest that over half of the variation in such preferences can be explained by genetic factors, with the remainder of the variance explained by environmental influences not shared among sibling twins. We discuss the implications of our findings for the study of individual differences in economic risk preferences. Copyright © 2009 John Wiley & Sons, Ltd.