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with +1 antagonists, where the +1st player ("the fictitious player") is not an entity. Rather, the fictitious player represents the global profit (or loss) of the players in the non-zero sum game. If we reduce this game to a zero-sum 3-player game by the introduction of a fictitious player 3, then the characteristic function becomes the one given. In Tibor Scitovsky's terminology (more commonly known as the Kaldor-Hicks criterion), this global profit (or

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