A strategy is dominant if:
A) it is one of several best responses for a player, regardless of other players' choices.
B) it is a player's only best response, given a particular choice of the other players.
C) it is independent of other players' choices.
D) it is a player's only best response, regardless of other players' choices.

Question

Quizplus · Accepted Answer

A dominant strategy is a strategy that is always the player's best response, regardless of the other players' choices. Option D states that it is a player's only best response, regardless of other players' choices, which is the correct definition of a dominant strategy. Option A is incorrect because while a dominant strategy is indeed one of the best responses, it is not simply one of several best responses. Option B is incorrect because a dominant strategy can still be present even if the player has other best responses given different choices by other players. Option C is incorrect because a dominant strategy does depend on other players' choices, it just happens to be the best response regardless of what those choices are.

A Strategy Is Dominant If