Given the changing cost of different outcomes during the game,
the game structure evolves over time. Madani (2010)identifies 6
game structures during the course of the game represented byFig. 2
and discusses how dominant strategies and equilibria of the game
change with the game's evolution. Players who act independently
might stick to the dominant strategy in the game at the earlier time
periods, resulting in pushing the game into the last period (Period
4) when the game transforms from a Prisoner's Dilemma (game 111
occurring in Period 3) to a Chicken game (game 122).