On a diversity ranking of choice profiles

Nicolas Gravel (), Ernesto Savaglio and Stefano Vannucci
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Ernesto Savaglio: DEA, University of Chieti-Pescara and GRASS
Stefano Vannucci: DEPS, University of Siena

Social Choice and Welfare, 2025, vol. 65, issue 3, No 6, 655-673

Abstract: Abstract The different 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 differ is introduced and characterized. An axiomatic characterization of the ranking of choice profiles based on the aggregation of the singularities of the chosen alternatives is also provided.

Date: 2025
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DOI: 10.1007/s00355-025-01586-x

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