On the Structure of Cooperative and Competitive Solutions for a Generalized Assignment Game

We study cooperative and competitive solutions for a many-to-many generalization of Shapley and Shubik’s (1971) assignment game. We consider the Core, three other notions of group stability, and two alternative definitions of competitive equilibrium. We show that (i) each group stable set is closely...

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Main Authors: R. Pablo Arribillaga, Jordi Massó, Alejandro Neme
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:Journal of Applied Mathematics
Online Access:http://dx.doi.org/10.1155/2014/190614
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author R. Pablo Arribillaga
Jordi Massó
Alejandro Neme
author_facet R. Pablo Arribillaga
Jordi Massó
Alejandro Neme
author_sort R. Pablo Arribillaga
collection DOAJ
description We study cooperative and competitive solutions for a many-to-many generalization of Shapley and Shubik’s (1971) assignment game. We consider the Core, three other notions of group stability, and two alternative definitions of competitive equilibrium. We show that (i) each group stable set is closely related to the Core of certain games defined using a proper notion of blocking and (ii) each group stable set contains the set of payoff vectors associated with the two definitions of competitive equilibrium. We also show that all six solutions maintain a strictly nested structure. Moreover, each solution can be identified with a set of matrices of (discriminated) prices which indicate how gains from trade are distributed among buyers and sellers. In all cases such matrices arise as solutions of a system of linear inequalities. Hence, all six solutions have the same properties from a structural and computational point of view.
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spelling doaj-art-eacbffc38b9c410495cb713d0ad764512025-02-03T01:23:26ZengWileyJournal of Applied Mathematics1110-757X1687-00422014-01-01201410.1155/2014/190614190614On the Structure of Cooperative and Competitive Solutions for a Generalized Assignment GameR. Pablo Arribillaga0Jordi Massó1Alejandro Neme2Instituto de Matemática Aplicada San Luis (UNSL-CONICET), Ejército de los Andes 950, 5700 San Luis, ArgentinaDepartament d'Economia i d'Història Econòmica, Universitat Autònoma de Barcelona and Barcelona GSE, Edifici B, Bellaterra, 08193 Barcelona, SpainInstituto de Matemática Aplicada San Luis (UNSL-CONICET), Ejército de los Andes 950, 5700 San Luis, ArgentinaWe study cooperative and competitive solutions for a many-to-many generalization of Shapley and Shubik’s (1971) assignment game. We consider the Core, three other notions of group stability, and two alternative definitions of competitive equilibrium. We show that (i) each group stable set is closely related to the Core of certain games defined using a proper notion of blocking and (ii) each group stable set contains the set of payoff vectors associated with the two definitions of competitive equilibrium. We also show that all six solutions maintain a strictly nested structure. Moreover, each solution can be identified with a set of matrices of (discriminated) prices which indicate how gains from trade are distributed among buyers and sellers. In all cases such matrices arise as solutions of a system of linear inequalities. Hence, all six solutions have the same properties from a structural and computational point of view.http://dx.doi.org/10.1155/2014/190614
spellingShingle R. Pablo Arribillaga
Jordi Massó
Alejandro Neme
On the Structure of Cooperative and Competitive Solutions for a Generalized Assignment Game
Journal of Applied Mathematics
title On the Structure of Cooperative and Competitive Solutions for a Generalized Assignment Game
title_full On the Structure of Cooperative and Competitive Solutions for a Generalized Assignment Game
title_fullStr On the Structure of Cooperative and Competitive Solutions for a Generalized Assignment Game
title_full_unstemmed On the Structure of Cooperative and Competitive Solutions for a Generalized Assignment Game
title_short On the Structure of Cooperative and Competitive Solutions for a Generalized Assignment Game
title_sort on the structure of cooperative and competitive solutions for a generalized assignment game
url http://dx.doi.org/10.1155/2014/190614
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