On a diversity ranking of choice profiles

Nicolas Gravel (), Ernesto Savaglio and Stefano Vannucci
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Nicolas Gravel: AMU - Aix Marseille Université, AMSE - Aix-Marseille Sciences Economiques - EHESS - École des hautes études en sciences sociales - AMU - Aix Marseille Université - ECM - École Centrale de Marseille - CNRS - Centre National de la Recherche Scientifique
Ernesto Savaglio: University of Chieti-Pescara
Stefano Vannucci: DEPS - Dipartimento di Economia Politica e Statistica - UNISI - Università degli Studi di Siena = University of Siena

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Abstract: The di¤erent options people select from a set of non-rival alternatives are compared in terms of singularity. A criterion for ranking these choices on the basis of the number of other choices from which they di¤er is introduced and characterized. An axiomatic characterization of the ranking of choice pro…les based on the aggregation of the singularities of the chosen alternatives is also provided. JEL Classi…cation : D63 Keywords : Diversity, Freedom of choice, Orderings, Choice pro…les. "The prosp ects of freedom in the contem p orary world m ay well lie in the recognition of the plurality of our identities, where p ersonal identity must b e understo o d as an extension of one's own choice of b eing som eone or doing som ething" (A. K. Sen (2006))

Date: 2025-03-20
Note: View the original document on HAL open archive server: https://hal.science/hal-05249644v1
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Published in Social Choice and Welfare, 2025, Social Choice and Welfare, ⟨10.1007/s00355-025-01586-x⟩

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Persistent link: https://EconPapers.repec.org/RePEc:hal:journl:hal-05249644

DOI: 10.1007/s00355-025-01586-x

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