Lexicographic Solutions for Coalitional Rankings Based on Individual and Collective Performances.Béal S., Rémila E., Solal P.

Title : Lexicographic Solutions for Coalitional Rankings Based on Individual and Collective Performances.

Authors : Béal S., Rémila E., Solal P.

Abstract : A coalitional ranking describes a situation where a finite set of agents can form coalitions that are ranked according to a weak order. A social ranking solution on a domain of coalitional rankings assigns a social ranking, that is a weak order over the agent set, to each coalitional ranking of this domain. We introduce two lexicographic solutions for a variable population domain of coalitional rankings. These solutions are computed from the individual performance of the agents, then, when this performance criterion does not allow to decide between two agents, a collective performance criterion is applied to the coalitions of higher size. We provide parallel axiomatic characterizations of these two solutions.

Publié dans Journal of Mathematical Economics, (2022) : article

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