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Choices Under Ambiguity With Familiar And Unfamiliar Outcomes

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

Theory and Decision, 2005, vol. 58, issue 2, 195-207

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 capacities and probabilities. A characterization of the decision-maker’s behavior 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. Copyright Springer 2005

Keywords: ambiguity; capacity; choquet integral; representation theorem; cumulative prospect theory; D81 (search for similar items in EconPapers)
Date: 2005
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Working Paper: Choices under ambiguity with familiar and unfamilar outcomes (2005)
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