 In this extensive form game, which makes explicit the sequential order of the agents’ actions, the ith component of each payoff vector is the payoff of the ith agent who moves in the game (so Claudia’s payoff is depicted first, since she acts first). Here we can suppose that Claudia does not agree with the Foole that one should break her promise if one’s partner in a covenant has kept her promise, but a dilemma nevertheless arises if Claudia suspects that Laura might agree with the Foole. This is because Claudia might reason that if she performs, then Laura, having already benefited and not standing to gain anything further, will not reciprocate. Consequently, Claudia, anticipating (A) Laura’s aggression, decides not to perform, leading Laura, now understandably, not to perform either, so that each ultimately does worse than if they had both performed.