@article {2826,
	title = {Uniqueness of the Shapley Value},
	journal = {Games and Economic Behavior},
	volume = {1},
	year = {1989},
	pages = {116-118},
	abstract = {It is shown that the Shapley value of any given game v is characterized by applying the value axioms -- efficiency, symmetry, the null player axiom, and either additivity or strong positivity -- to the additive group generated by the subgames of v.},
	author = {Abraham Neyman}
}
