Two players bargain over the allocation of a sum of money. They are only incompletely informed about the opponent's alternative in case of conflict. The paper investigates two different experimental approaches: the spontaneous behavior of subjects in a game playing experiment and the strategies...

We examine an Outside Option Game in which player I submits a claim for a share of a cake while player II simultaneously either makes a claim or chooses to opt out. If player II opts out, then she receives an opt-out payment while player I receives nothing. If player II opts in and if the claims...