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- W2495407843 abstract "Zero-sum games are to the theory of games what the twelve-bar blues is to jazz: a polar case, and a historical point of departure. A game is a situation in which (i) each of a number of agents (players) has a set of alternative courses of action (strategies) at his disposal; (ii) there are outcomes which depend on the combination of the players’ actions and give rise to preferences by the players over these combinations; (iii) the players know, and know that each other knows, these preferences. (Strictly, such a situation is a game of complete information in normal form: these qualifications should hencefore be understood.) In the case which dominates the literature of zero-sum games there are two players, A and B say, each with a finite set of strategies, and their preferences can be represented by von Neumann-Morgenstern utilities. The preference structure can then be displayed in a payoff matrix whose (i,j)th entry (u ij ,v ij ) gives the expected utilities or payoffs of A and B respectively for A using his ith strategy and B using his jth. A game of this type in which u ij + v ij = 0 for all i,j is known as a zero-sum matrix game (henceforth simply zero-sum game). In a zero-sum game the players have exactly opposed preferences over strategy-pairs. Hence there is no scope for the pair of them to act as a pair — there is nothing for them to cooperate about. The theory of cooperative zero-sum games is thus an empty box; zero-sum games are noncooperative games, and each player must choose in uncertainty of the other’s choice." @default.
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- W2495407843 date "1989-01-01" @default.
- W2495407843 modified "2023-09-24" @default.
- W2495407843 title "Zero-sum Games" @default.
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- W2495407843 doi "https://doi.org/10.1007/978-1-349-20181-5_31" @default.
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