El grup té una experiència de gairebé vint anys en el seu camp d’expertesa, la teoria de jocs i les seves aplicacions, des d’aleshores fins ara el grup ha mantingut una línia creixent tant pel que fa a la producció científica contrastada com al nombre de membres que l’integren. El grup és avui un referent internacional en àrees específiques com ara els sistemes de votació i els jocs cooperatius així com en les seves aplicacions: tecnològiques, econòmiques, polítiques i sociològiques.

Els seus treballs són matemàticament rigorosos i concisos, i els seus membres són bons coneixedors de l’àlgebra, la matemàtica discreta, la probabilitat o la computació. Nombroses situacions extretes de la vida quotidiana els han estimulat a modelitzar, simular i proposar propostes de solució o de millora.

Els seus membres comparteixen nombroses publicacions de prestigi, vetllen per la creixent internacionalització del grup, tenen cura de la formació i divulguen els seus treballs.

http://futur.upc.edu/GRTJ

Research in the foundations and applications of game theory. The main theoretical lines are the following: (a) cooperative games and solution concepts; (b) collective decision-making mechanisms and power indices; (c) restrictions to cooperation; (d) multiplicity of alternatives; and (e) software. The areas of application include economics, political science, sociology, management, industrial scheduling and technologies such as cryptography and reliability.

http://futur.upc.edu/GRTJ

Recent Submissions

  • On the time decay of solutions for non-simple elasticity with voids 

    Liu, Zhuangyi; Magaña Nieto, Antonio; Quintanilla de Latorre, Ramón (Wiley-VCH, 2016-07-01)
    Article
    Restricted access - publisher's policy
    In this work we consider the non-simple theory of elastic material with voids and we investigate how the coupling of these two aspects of the material affects the behavior of the solutions. We analyze only two kind of ...
  • Decisiveness indices are semiindices 

    Freixas Bosch, Josep; Pons Vallès, Montserrat (2016-06)
    Article
    Restricted access - publisher's policy
    In this note we prove that any decisiveness index, defined for any voter as the probability of him/her being decisive, is a semiindex when the probability distribution over coalitions is anonymous, and it is a semiindex ...
  • Some properties for probabilistic and multinomial (probabilistic) values on cooperative games 

    Domènech Blázquez, Margarita; Giménez Pradales, José Miguel; Puente del Campo, María Albina (2016-01-01)
    Article
    Restricted access - publisher's policy
    We investigate the conditions for the coefficients of probabilistic and multinomial values of cooperative games necessary and/or sufficient in order to satisfy some properties, including marginal contributions, balanced ...
  • Some advances in the theory of voting systems based on experimental algorithms 

    Freixas Bosch, Josep; Molinero Albareda, Xavier (2006-01)
    External research report
    Open Access
    In voting systems, game theory, switching functions, threshold logic, hypergraphs or coherent structures there is an important problem that consists in determining the weightedness of a voting system by means of trades ...
  • The cost of getting local monotonicity 

    Freixas Bosch, Josep; Kurz, Sascha (Elsevier, 2016-06-01)
    Article
    Restricted access - publisher's policy
    Committees with yes-no-decisions are commonly modeled as simple games and the ability of a member to influence the group decision is measured by so-called power indices. For a weighted game we say that a power index satisfies ...
  • Minimal representations for majority games 

    Freixas Bosch, Josep; Molinero Albareda, Xavier; Roura Ferret, Salvador (2007-02)
    External research report
    Open Access
    This paper presents some new results about majority games. Isbell (1959) was the first to find a majority game without a minimum normalized representation; he needed 12 voters to construct such a game. Since then, it has ...
  • On the complexity of exchanging 

    Molinero Albareda, Xavier; Olsen, Martin; Serna Iglesias, María José (2016-02-04)
    Article
    Restricted access - publisher's policy
    We analyze the computational complexity of the problem of deciding whether, for a given simple game, there exists the possibility of rearranging the participants in a set of j given losing coalitions into a set of j winning ...
  • Components with higher and lower risk in a reliability system 

    Freixas Bosch, Josep; Pons Vallès, Montserrat (Fundación Mapfre, 2015)
    Conference report
    Open Access
    A new reliability importance measure for components in a system, that we call Representativeness measure, is introduced. It evaluates to which extent the performance of a component is representative of the erformance of ...
  • Power in voting rules with abstention: an axiomatization of a two components power index 

    Freixas Bosch, Josep; Lucchetti, Roberto (2016-02-09)
    Article
    Restricted access - publisher's policy
    In order to study voting situations when voters can also abstain and the output is binary, i.e., either approval or rejection, a new extended model of voting rule was defined. Accordingly, indices of power, in particular ...
  • Exponential decay in nonsimple thermoelasticity of type III 

    Magaña Nieto, Antonio; Quintanilla de Latorre, Ramón (2016-01-15)
    Article
    Open Access
    This paper deals with the model proposed for nonsimple materials with heat conduction of type III.We analyze rst the general system of equations, determine the behavior of its solutions with respect to the time and show ...

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