Cooperative Game Theory

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2 domain-specific abstractions whose origin domain is Cooperative Game Theory.

• Shapley value — The unique cooperative-game allocation that assigns each player their average marginal contribution over all coalition-entry orders under efficiency, symmetry, dummy and additivity axioms.
• Shapley–Shubik power index — A voter’s a priori power measured as the probability of being pivotal over all orderings in a monotone simple voting game.