Title
Banzhaf index for multiple voting systems. An application to the European Union.
Abstract
Multi-criteria simple games constitute an extension of the basic framework of voting systems and collective decision-making. The study of power index plays an important role in the theory of multi-criteria simple games. Thus, in this paper, we propose the extended Banzhaf index for these games, as the natural generalization of this index in conventional simple games. This approach allows us to compare various criteria simultaneously. An axiomatic characterization of this power index is established. The Banzhaf index is computed by taking into account the minimal winning coalitions of each class. Since this index depends on the number of ways in which each player can effect a swing, one of the main difficulties for finding this index is that it involves a large number of computations. We propose a combinatorial procedure, based on generating functions, to obtain the Banzhaf index more efficiently for weighted multi-criteria simple games. As an application, the distribution of voting power in the European Union is calculated.
Year
DOI
Venue
2014
10.1007/s10479-013-1374-8
Annals OR
Keywords
Field
DocType
Multi-criteria simple games,Voting systems,Power indices,Generating functions
Generating function,Mathematical economics,Mathematical optimization,Voting,Axiom,Mathematics,Swing,Computation,European union
Journal
Volume
Issue
ISSN
215
1
0254-5330
Citations 
PageRank 
References 
1
0.36
10
Authors
2
Name
Order
Citations
PageRank
Luisa Monroy1296.05
Francisco R. Fernández217618.42