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Choices under ambiguity with familiar and unfamiliar outcomes

Marcello Basili (), Alain Chateauneuf () and Fulvio Fontini

Cahiers de la Maison des Sciences Economiques from Université Panthéon-Sorbonne (Paris 1)

Abstract: This paper considers a decision-making process under ambiguity in which the decision-maker is supposed to split outcomes between familiar and unfamiliar ones. She is assumed to behave differently with respect to unfamiliar gains, unfamiliar losses and customary (familiar) outcomes. In particular, she is supposed to be pessimistic on gains, optimistic on losses and ambiguity neutral on the familiar outcomes. A generalization of the usual Choquet integral is formalized when the decision-maker holds both capacities and probabilities. A characterization of the decision-maker's behaviour is provided for a specific subset of capacities, in which it is shown that the decision-maker underestimates the unfamiliar outcomes while is linear in probabilities on customary ones.

Keywords: Ambiguity; capacity; Choquet integral; representation theorem; cumulative prospect theory. (search for similar items in EconPapers)
JEL-codes: D81 (search for similar items in EconPapers)
Pages: 11 pages
Date: 2004-10
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ftp://mse.univ-paris1.fr/pub/mse/cahiers2004/B04115.pdf (application/pdf)

Related works:
Journal Article: Choices Under Ambiguity With Familiar And Unfamiliar Outcomes (2005) Downloads
Working Paper: Choices under ambiguity with familiar and unfamilar outcomes (2005)
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Persistent link: https://EconPapers.repec.org/RePEc:mse:wpsorb:b04115

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