Why do people work? Economic theory generally, and the principal-agent model specifically, emphasize the role of material incentives. But many academics, for example, work diligently year after year for a nearly fixed real salary, continuing to work hard as they approach retirement, although...

We report on a hold-up experiment in which unilateral investment is followed by bilateral bargaining according to Nash's demand game. Without communication, investment is low and coordination is poor. Unilateral communication facilitates coordination, but not perfectly. Successful coordination...