Rationalizing Choice Functions by Multiple Rationales

Gil Kalai, Ariel Rubinstein () and Ran Spiegler ()

Discussion Paper Series from The Federmann Center for the Study of Rationality, the Hebrew University, Jerusalem

Abstract: The paper presents a notion of rationalizing choice functions that violate the “Independence of Irrelevant Alternatives” axiom. A collection of linear orderings is said to provide a rationalization by multiple rationales for a choice function if the choice from any choice set can be rationalized by one of the orderings. We characterize a tight upper bound on the minimal number of orderings that is required to rationalize arbitrary choice functions, and calculate the minimal number for several specific choice procedures.

Pages: 9 pages
Date: 2001-10
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Citations: View citations in EconPapers (13)

Published in Econometrica, 2002, vol. 70, pp. 2481-2488.

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Related works:
Journal Article: Rationalizing Choice Functions By Multiple Rationales (2002)
Working Paper: Rationalizing Choice Functions by Multiple Rationales (2001)
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