Diminishing Marginal Utility of Wealth Cannot Explain Risk Aversion
Arrow (1971) shows that an expected-utility maximizer with a differentiable utility function will always want to take a sufficiently small stake in any positive-expected-value bet. That is, expected- utility maximizers are arbitrarily close to risk neutral when stakes are arbitrarily small. While most economists understand this formal limit result, fewer appreciate that the approximate risk-neutrality prediction holds not just for very small stakes, but for quite sizable and economically important stakes. Diminishing marginal utility of wealth is not a plausible explanation of people's aversion to risk on the scale of $10, $100, $1000 or even more. After illustrating and providing intuition for these claims, I shall argue that economists often reach misleading conclusions by invoking expected-utility theory to explain substantial risk aversion in contexts where the theory actually predicts virtual risk neutrality.
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- Machina, Mark J, 1987. "Choice under Uncertainty: Problems Solved and Unsolved," Journal of Economic Perspectives, American Economic Association, vol. 1(1), pages 121-54, Summer.
- Shlomo Benartzi & Richard H. Thaler, 1995. "Myopic Loss Aversion and the Equity Premium Puzzle," The Quarterly Journal of Economics, Oxford University Press, vol. 110(1), pages 73-92.
- Amos Tversky & Daniel Kahneman, 1979.
"Prospect Theory: An Analysis of Decision under Risk,"
Levine's Working Paper Archive
7656, David K. Levine.
- Kahneman, Daniel & Tversky, Amos, 1979. "Prospect Theory: An Analysis of Decision under Risk," Econometrica, Econometric Society, vol. 47(2), pages 263-91, March.
- Gneezy, U. & Potters, J.J.M., 1997.
"An experiment on risk taking and evaluation periods,"
Other publications TiSEM
da6ba1bf-e15c-41b2-ae95-c, Tilburg University, School of Economics and Management.
- Gneezy, U. & Potters, J.J.M., 1996. "An experiment on risk taking and evaluation periods," Discussion Paper 1996-61, Tilburg University, Center for Economic Research.
- Richard H. Thaler & Amos Tversky & Daniel Kahneman & Alan Schwartz, 1997. "The Effect of Myopia and Loss Aversion on Risk Taking: An Experimental Test," The Quarterly Journal of Economics, Oxford University Press, vol. 112(2), pages 647-661.
- Harless, David W & Camerer, Colin F, 1994. "The Predictive Utility of Generalized Expected Utility Theories," Econometrica, Econometric Society, vol. 62(6), pages 1251-89, November.
- Uzi Segal & Avia Spivak, 1988.
"First Order Versus Second Order Risk Aversion,"
UCLA Economics Working Papers
540, UCLA Department of Economics.
- Daniel Kahneman & Dan Lovallo, 1993. "Timid Choices and Bold Forecasts: A Cognitive Perspective on Risk Taking," Management Science, INFORMS, vol. 39(1), pages 17-31, January.
- N. Gregory Mankiw & Stephen P. Zeldes, 1990.
"The Consumption of Stockholders and Non-Stockholders,"
NBER Working Papers
3402, National Bureau of Economic Research, Inc.
- Mankiw, N. Gregory & Zeldes, Stephen P., 1991. "The consumption of stockholders and nonstockholders," Journal of Financial Economics, Elsevier, vol. 29(1), pages 97-112, March.
- Mankiw, N.G. & Zeldes, S.P., 1990. "The Consumption Of Stockholders And Non-Stockholders," Weiss Center Working Papers 23-90, Wharton School - Weiss Center for International Financial Research.
- Graham Loomes & Uzi Segal, .
"Observing Different Orders of Risk Aversion,"
92/5, Department of Economics, University of York.
- L. Epstein & S. Zin, 2010.
"First order risk aversion and the equity premium puzzle,"
Levine's Working Paper Archive
1400, David K. Levine.
- Epstein, Larry G. & Zin, Stanley E., 1990. "'First-order' risk aversion and the equity premium puzzle," Journal of Monetary Economics, Elsevier, vol. 26(3), pages 387-407, December.
- Kandel, S. & Stambaugh, R.F., 1990. "Asset Returns, Investment Horizons, And Intertemporal Preferences," Weiss Center Working Papers 7-90, Wharton School - Weiss Center for International Financial Research.
- Uri Gneezy & Jan Potters, 1997. "An Experiment on Risk Taking and Evaluation Periods," The Quarterly Journal of Economics, Oxford University Press, vol. 112(2), pages 631-645.
- Daniel Kahneman & Jack L. Knetsch & Richard H. Thaler, 1991. "Anomalies: The Endowment Effect, Loss Aversion, and Status Quo Bias," Journal of Economic Perspectives, American Economic Association, vol. 5(1), pages 193-206, Winter.
- Read, Daniel & Loewenstein, George & Rabin, Matthew, 1999. "Choice Bracketing," Journal of Risk and Uncertainty, Springer, vol. 19(1-3), pages 171-97, December.
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