This paper combines the microeconomic foundations of earlier models of a range of equilibrium rates of employment to generate a model with a diamond of equilibria. Analysis of the diamond model shows that for a depressed economy an expansionary aggregate demand policy can, without violating...

We experimentally investigate reference group formation and the impact of social comparisons in a three-player ultimatum game. The players compete in a real-effort task for the role of the proposer. The role of the responder is randomly allocated to one of the other two participants. The third...