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Axiomatizations of the normalized Banzhaf value and the Shapley value

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Author Info
(*), Gerard van der Laan (Department of Econometrics and Tinbergen Institute, Free University, De Boulelaan 1105, 1081 HV Amsterdam, The Netherlands)
RenÊ van den Brink (Department of Econometrics, Tilburg University, P.O. Box 90153, 5000 LE Tilburg, The Netherlands)

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Abstract

A cooperative game with transferable utilities - or simply a TU-game - describes a situation in which players can obtain certain payoffs by cooperation. A solution concept for these games is a function which assigns to every such a game a distribution of payoffs over the players in the game. Famous solution concepts for TU-games are the Shapley value and the Banzhaf value. Both solution concepts have been axiomatized in various ways.

An important difference between these two solution concepts is the fact that the Shapley value always distributes the payoff that can be obtained by the `grand coalition' consisting of all players cooperating together while the Banzhaf value does not satisfy this property, i.e., the Banzhaf value is not efficient. In this paper we consider the normalized Banzhaf value which distributes the payoff that can be obtained by the `grand coalition' proportional to the Banzhaf values of the players. This value does not satisfy certain axioms underlying the Banzhaf value. In this paper we introduce some new axioms that characterize the normalized Banzhaf value. We also provide an axiomatization of the Shapley value using similar axioms.

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Publisher Info
Article provided by Springer in its journal Social Choice and Welfare.

Volume (Year): 15 (1998)
Issue (Month): 4 ()
Pages: 567-582
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Handle: RePEc:spr:sochwe:v:15:y:1998:i:4:p:567-582

Note: Received: 10 April 1996 / Accepted: 2 June 1997
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  1. Brink, Rene van den & Gilles, Robert P., 2005. "Explicit and latent authority in hierarchical organizations," Discussion Paper 75, Tilburg University, Center for Economic Research. [Downloadable!]
  2. René van den Brink & Robert P. Gilles, 2003. "Explicit and Latent Authority in Hierarchical Organizations," Tinbergen Institute Discussion Papers 03-102/1, Tinbergen Institute. [Downloadable!]
  3. Brink, R. van den & Ruys, P.H.M. & Semenov, R., 1999. "Governance of clubs and firms with cultural dimensions," Discussion Paper 101, Tilburg University, Center for Economic Research. [Downloadable!]
  4. René van den Brink & Gerard van der Laan, 2001. "A Class of Consistent Share Functions for Games in Coalition Structure," Tinbergen Institute Discussion Papers 01-044/1, Tinbergen Institute. [Downloadable!]
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  5. Brink, R. van den & Laan, G. van der, 1999. "Core concepts for share vectors," Discussion Paper 64, Tilburg University, Center for Economic Research. [Downloadable!]
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  6. Brink, R. van den & Laan, G. van der, 1999. "Potentials and reduced games for share functions," Discussion Paper 41, Tilburg University, Center for Economic Research. [Downloadable!]
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  7. Brink, R. van den, 1999. "An axiomatization of the shapley value using a fairness property," Discussion Paper 120, Tilburg University, Center for Economic Research. [Downloadable!]
  8. René van den Brink & Yukihiko Funaki & Yuan Ju, 2007. "Consistency, Monotonicity and Implementation of Egalitarian Shapley Values," Tinbergen Institute Discussion Papers 07-062/1, Tinbergen Institute. [Downloadable!]
  9. Annick Laruelle, 1999. "- On The Choice Of A Power Index," Working Papers. Serie AD 1999-10, Instituto Valenciano de Investigaciones Económicas, S.A. (Ivie). [Downloadable!]
  10. René van den Brink & Gerard van der Laan & Valeri Vasil'ev, 2003. "Harsanyi Solutions in Line-graph Games," Tinbergen Institute Discussion Papers 03-076/1, Tinbergen Institute. [Downloadable!]
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