A Banzhaf value for games with fuzzy communication structure: Computing the power of the political groups in the European Parliament

In 2013, Jiménez-Losada et al. introduced several extensions of the Myerson value for games with fuzzy communication structure. In a fuzzy communication structure the membership of the players and the relations among them are leveled. Now we study a Banzhaf value for these situations. The Myerson mo...

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Detalles Bibliográficos
Autores: Gallego Sánchez, Inés Magdalena, Fernández García, Julio R., Jiménez Losada, Andrés, Ordóñez Sánchez, Manuel
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2014
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/161631
Acceso en línea:https://hdl.handle.net/11441/161631
https://doi.org/10.1016/j.fss.2013.12.012
Access Level:acceso abierto
Palabra clave:Game theory
Fuzzy graphs
Banzhaf value
Power indices
European Parliament
Descripción
Sumario:In 2013, Jiménez-Losada et al. introduced several extensions of the Myerson value for games with fuzzy communication structure. In a fuzzy communication structure the membership of the players and the relations among them are leveled. Now we study a Banzhaf value for these situations. The Myerson model is followed to define the fuzzy graph Banzhaf value taking as base point the Choquet integral. We propose an axiomatization for this value introducing leveled amalgamation of players. An algorithm to calculate this value is provided and its complexity is studied. Finally we show an applied example computing by this fuzzy value the power of the groups in the European Parliament.