Title
Compensations in the Shapley value and the compensation solutions for graph games.
Abstract
We consider an alternative expression of the Shapley value that reveals a system of compensations: each player receives an equal share of the worth of each coalition he belongs to, and has to compensate an equal share of the worth of any coalition he does not belong to. We give a representation in terms of formation of the grand coalition according to an ordering of the players and define the corresponding compensation vector. Then, we generalize this idea to cooperative games with a communication graph in order to construct new allocation rules called the compensation solutions. Firstly, we consider cooperative games with arbitrary graphs and construct rooted spanning trees (see Demange, J Political Econ 112:754–778, 2004) instead of orderings of the players by using the classical algorithms DFS and BFS. If the graph is complete, we show that the compensation solutions associated with DFS and BFS coincide with the Shapley value and the equal surplus division respectively. Secondly, we consider cooperative games with a forest (cycle-free graph) and all its rooted spanning trees. The compensation solution is characterized by component efficiency and relative fairness. The latter axiom takes into account the relative position of a player with respect to his component in the communication graph.
Year
DOI
Venue
2012
10.1007/s00182-011-0277-7
Int. J. Game Theory
Keywords
Field
DocType
game theory,shapley value,spanning tree,dfs,bfs
Distributed File System,Welfare economics,Graph,Mathematical economics,Axiom,Shapley value,Game theory,Spanning tree,Mathematics
Journal
Volume
Issue
ISSN
41
1
1432-1270
Citations 
PageRank 
References 
4
0.52
7
Authors
3
Name
Order
Citations
PageRank
Sylvain Béal17012.23
Eric Rémila232945.22
Philippe Solal37914.55