Suppose the U.N. Security Council with five permanent members and ten non-permanent members, changed its voting rule to require that a coalition S wins if, and only if, it contains all five permanent...

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Extracted text: Suppose the U.N. Security Council with five permanent members and ten non-permanent members, changed its voting rule to require that a coalition S wins if, and only if, it contains all five permanent members and at least seven of the non-permanent members (as opposed to the current rule, where "seven" is replaced by "four"). Compute the Shapley value of the permanent and non-permanent members under both voting rules.