Measuring ambiguity aversion: A systematic experimental approach
This paper provides a systematic analysis of individual attitudes towards ambiguity, based on laboratory experiments. The design of the analysis allows to capture individual behavior across various levels of ambiguity, ranging from low to high. Attitudes towards risk and attitudes towards ambiguity are disentangled, providing pure measures of ambiguity aversion. Ambiguity aversion is captured in several ways, i.e. as a discount factor net of a risk premium, and as an estimated parameter in a generalized utility function. We find that ambiguity aversion varies across individuals, and with the level of ambiguity, being most prominent for intermediate levels. Around one third of subjects show no aversion, one third show maximum aversion, and one third show intermediate levels of ambiguity aversion, while there is almost no ambiguity seeking. While most theoretical work on ambiguity builds on maxmin expected utility, our results provide evidence that MEU does not adequately capture individual attitudes towards ambiguity for the majority of individuals. Instead, our results support models that allow for intermediate levels of ambiguity aversion. Moreover, we find risk aversion to be statistically unrelated to ambiguity aversion on average. Taken together, the results support the view that ambiguity is an important and distinct argument in decision making under uncertainty.
|Date of creation:||2014|
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- Marciano Siniscalchi, 2009.
"Vector Expected Utility and Attitudes Toward Variation,"
Econometric Society, vol. 77(3), pages 801-855, 05.
- Marciano Siniscalchi, 2007. "Vector Expected Utility and Attitudes toward Variation," Discussion Papers 1455, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
- Charles A. Holt & Susan K. Laury, 2002. "Risk Aversion and Incentive Effects," American Economic Review, American Economic Association, vol. 92(5), pages 1644-1655, December.
- Boyarchenko, Nina, 2012. "Ambiguity shifts and the 2007–2008 financial crisis," Journal of Monetary Economics, Elsevier, vol. 59(5), pages 493-507.
- Ghirardato, Paolo & Maccheroni, Fabio & Marinacci, Massimo, 2004. "Differentiating ambiguity and ambiguity attitude," Journal of Economic Theory, Elsevier, vol. 118(2), pages 133-173, October.
- Lubos Pastor & Pietro Veronesi, 2010.
"Uncertainty about Government Policy and Stock Prices,"
2010-008, Becker Friedman Institute for Research In Economics.
- Lubos Pástor & Pietro Veronesi, 2012. "Uncertainty about Government Policy and Stock Prices," Journal of Finance, American Finance Association, vol. 67(4), pages 1219-1264, 08.
- Lubos Pastor & Pietro Veronesi, 2010. "Uncertainty about Government Policy and Stock Prices," NBER Working Papers 16128, National Bureau of Economic Research, Inc.
- Pietro Veronesi & Lubos Pastor, 2011. "Uncertainty about Government Policy and Stock Prices," 2011 Meeting Papers 86, Society for Economic Dynamics.
- Pástor, Luboš & Veronesi, Pietro, 2010. "Uncertainty about Government Policy and Stock Prices," CEPR Discussion Papers 7897, C.E.P.R. Discussion Papers.
- Halevy, Yoram, 2005.
"Ellsberg Revisited: an Experimental Study,"
Microeconomics.ca working papers
halevy-05-07-26-11-51-13, Vancouver School of Economics, revised 25 Feb 2014.
- Cosmin Ilut, 2012.
"Ambiguity Aversion: Implications for the Uncovered Interest Rate Parity Puzzle,"
American Economic Journal: Macroeconomics,
American Economic Association, vol. 4(3), pages 33-65, July.
- Cosmin Ilut, 2009. "Ambiguity Aversion: Implications For The Uncovered Interest Rate Parity Puzzle," 2009 Meeting Papers 328, Society for Economic Dynamics.
- Cosmin L. Ilut, 2010. "Ambiguity Aversion: Implications for the Uncovered Interest Rate Parity Puzzle," Working Papers 10-53, Duke University, Department of Economics.
- Ricardo J. Caballero & Pablo Kurlat, 2009. "The surprising origin and nature of financial crises: a macroeconomic policy proposal," Proceedings - Economic Policy Symposium - Jackson Hole, Federal Reserve Bank of Kansas City, pages 19-68.
- Schmeidler, David, 1989.
"Subjective Probability and Expected Utility without Additivity,"
Econometric Society, vol. 57(3), pages 571-87, May.
- David Schmeidler, 1989. "Subjective Probability and Expected Utility without Additivity," Levine's Working Paper Archive 7662, David K. Levine.
- Tsogbadral Galaabaatar & Edi Karni, 2013. "Subjective Expected Utility With Incomplete Preferences," Econometrica, Econometric Society, vol. 81(1), pages 255-284, 01.
- Larry Epstein & Martin Schneider, 2005.
"Ambiguity, Information Quality and Asset Pricing,"
RCER Working Papers
519, University of Rochester - Center for Economic Research (RCER).
- Anderson, Evan W. & Ghysels, Eric & Juergens, Jennifer L., 2009. "The impact of risk and uncertainty on expected returns," Journal of Financial Economics, Elsevier, vol. 94(2), pages 233-263, November.
- Einhorn, Hillel J & Hogarth, Robin M, 1986. "Decision Making under Ambiguity," The Journal of Business, University of Chicago Press, vol. 59(4), pages S225-50, October.
- Gilboa, Itzhak & Schmeidler, David, 1989. "Maxmin expected utility with non-unique prior," Journal of Mathematical Economics, Elsevier, vol. 18(2), pages 141-153, April.
- Fabio Maccheroni & Massimo Marinacci & Aldo Rustichini, 2006.
"Ambiguity Aversion, Robustness, and the Variational Representation of Preferences,"
Econometric Society, vol. 74(6), pages 1447-1498, November.
- Fabio Maccheroni & Massimo Marinacci & Aldo Rustichini, 2004. "Ambiguity Aversion, Robustness, and the Variational Representation of Preferences," Carlo Alberto Notebooks 12, Collegio Carlo Alberto, revised 2006.
- H. Henry Cao & Tan Wang & Harold H. Zhang, 2005. "Model Uncertainty, Limited Market Participation, and Asset Prices," Review of Financial Studies, Society for Financial Studies, vol. 18(4), pages 1219-1251.
- Urs Fischbacher, 2007. "z-Tree: Zurich toolbox for ready-made economic experiments," Experimental Economics, Springer, vol. 10(2), pages 171-178, June.
- David Easley & Maureen O'Hara, 2009. "Ambiguity and Nonparticipation: The Role of Regulation," Review of Financial Studies, Society for Financial Studies, vol. 22(5), pages 1817-1843, May.
- Eric Danan & Anthony Ziegelmeyer, 2006. "Are preferences complete? An experimental measurement of indecisiveness under risk," Papers on Strategic Interaction 2006-01, Max Planck Institute of Economics, Strategic Interaction Group.
- Judson A. Caskey, 2009. "Information in Equity Markets with Ambiguity-Averse Investors," Review of Financial Studies, Society for Financial Studies, vol. 22(9), pages 3595-3627, September.
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