More pessimism than greediness: a characterization of monotone risk aversion in the Rank-Dependent Expected Utility model
This paper studies monotone risk aversion, the aversion to monotone, meanpreserving increase in risk (Quiggin ), in the Rank Dependent Expected Utility (RDEU) model. This model replaces expected utility by another functional, characterized by twofunctions, a utility function u in conjunction with a probability-perception function f.Monotone mean-preserving increases in risk are closely related to the notion of comparative dispersion introduced by Bickel & Lehmann [3, 4] in Non-parametric Statistics. We present a characterization of the pairs (u; f) of monotone risk averse decision makers, based on an index of greediness Gu of the utility function u and an index of pessimism Pf of the probability perception function f: the decision maker is monotone risk averse if and onlyif Pf exceeds Gu. A novel element is that concavity of u is not necessary. In fact, u must be concave only if Pf = 1.
|Date of creation:||2005|
|Date of revision:|
|Publication status:||Published in Economic Theory, Springer Verlag, 2005, 25, pp.649-667. <10.1007/s00199-003-0451-7>|
|Note:||View the original document on HAL open archive server: https://halshs.archives-ouvertes.fr/halshs-00211906|
|Contact details of provider:|| Web page: https://hal.archives-ouvertes.fr/|
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- Alain Chateauneuf & Michèle Cohen & Isaac Meilijson, 2004.
"Four notions of mean preserving increase in risk, risk attitudes and applications to the Rank-Dependent Expected Utility model,"
Université Paris1 Panthéon-Sorbonne (Post-Print and Working Papers)
- Chateauneuf, Alain & Cohen, Michele & Meilijson, Isaac, 2004. "Four notions of mean-preserving increase in risk, risk attitudes and applications to the rank-dependent expected utility model," Journal of Mathematical Economics, Elsevier, vol. 40(5), pages 547-571, August.
- Chateauneuf, Alain & Cohen, Michele, 1994. "Risk Seeking with Diminishing Marginal Utility in a Non-expected Utility Model," Journal of Risk and Uncertainty, Springer, vol. 9(1), pages 77-91, July.
- Quiggin, John, 1982. "A theory of anticipated utility," Journal of Economic Behavior & Organization, Elsevier, vol. 3(4), pages 323-343, December.
- Quiggin, J. & Wakker, P., 1992.
"The Axiomatic Basis of Anticipated Utility: A Clarification,"
9203, Tilburg - Center for Economic Research.
- Quiggin John & Wakker Peter, 1994. "The Axiomatic Basis of Anticipated Utility: A Clarification," Journal of Economic Theory, Elsevier, vol. 64(2), pages 486-499, December.
- Quiggin, J. & Wakker, P.P., 1992. "The Axiomatic Basis of Anticipated Utility : A Clarification," Discussion Paper 1992-3, Tilburg University, Center for Economic Research.
- Yaari, Menahem E, 1987. "The Dual Theory of Choice under Risk," Econometrica, Econometric Society, vol. 55(1), pages 95-115, January.
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