Strategic dominance
Quality of a strategy in game theory / From Wikipedia, the free encyclopedia
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In game theory, a dominant strategy is a strategy that is better than any other strategy for one player, no matter how that player's opponent will play. Some very simple games can be solved using dominance. The opposite, intransitivity, occurs in games where one strategy may be better or worse than another strategy for one player, depending on how the player's opponents may play.
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Dominant strategy | |
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A solution concept in game theory | |
Relationship | |
Subset of | Strategy (game theory) |
Superset of | Rationalizable strategy |
Significance | |
Used for | Prisoner's dilemma |
A game form is called straightforward if it always has a dominant strategy, no matter what each player's utility function is. Gibbard's theorem shows that the dictator game is the unique straightforward game form with more than two possible actions for each player.