On the fuzzy interval equal surplus sharing solutions
ISSN: 0368-492X
Article publication date: 10 August 2021
Issue publication date: 5 September 2022
Abstract
Purpose
This paper deals with cooperative games whose characteristic functions are fuzzy intervals, i.e. the worth of a coalition is not a real number but a fuzzy interval. This means that one observes a lower and an upper bound of the considered coalitions. This is very important, for example, from a computational and algorithmic viewpoint. The authors notice that the approach is general, since the characteristic function fuzzy interval values may result from solving general optimization problems.
Design/methodology/approach
This paper deals with cooperative games whose characteristic functions are fuzzy intervals, i.e. the worth of a coalition is not a real number but a fuzzy interval. A situation in which a finite set of players can obtain certain fuzzy payoffs by cooperation can be described by a cooperative fuzzy interval game.
Findings
In this paper, the authors extend a class of solutions for cooperative games that all have some egalitarian flavour in the sense that they assign to every player some initial payoff and distribute the remainder of the worth v(N) of the grand coalition N equally among all players under fuzzy uncertainty.
Originality/value
In this paper, the authors extend a class of solutions for cooperative games that all have some egalitarian flavour in the sense that they assign to every player some initial payoff and distribute the remainder of the worth v(N) of the grand coalition N equally among all players under fuzzy uncertainty. Examples of such solutions are the centre-of-gravity of the imputation-set value, shortly denoted by CIS value, egalitarian non-separable contribution value, shortly denoted by ENSC value and the equal division solution. Further, the authors discuss a class of equal surplus sharing solutions consisting of all convex combinations of the CIS value, the ENSC value and the equal division solution. The authors provide several characterizations of this class of solutions on variable and fixed player set. Specifications of several properties characterize specific solutions in this class.
Keywords
Acknowledgements
The authors are grateful to the referees for their suggestions, which have greatly improved the readability of the paper.
Citation
Özcan, İ. and Alparslan Gök, S.Z. (2022), "On the fuzzy interval equal surplus sharing solutions", Kybernetes, Vol. 51 No. 9, pp. 2753-2767. https://doi.org/10.1108/K-09-2020-0554
Publisher
:Emerald Publishing Limited
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