Move by nature
Move by nature
upright=1.35|thumb|A [[signaling-game which begins with a move by nature.]] In game-theory a move by nature is a decision or move in an extensive-form-game made by a player who has no strategic interests in the outcome. The effect is to add a player, "Nature", whose practical role is to act as a random number generator. For instance, if a game of Poker requires a dealer to choose which cards a player is dealt, the dealer plays the role of the nature player.
Moves by nature are an integral part of games of incomplete information.