A popular theory of business cycles is that they are driven by animal spirits: shifts in expectations brought on by sunspots. Two prominent examples are Diamond (JPE, 1982) and Howitt and McAfee (AER, 1992). We show that these models have unique equilibria if there are payoff shocks of any size....

This paper examines the effects of strategic delegation in a simple ultimatum game experiment. Our main concern is to examine the effect of delegation on the way players think about the game and how the play it.

A decision maker faces a decision problem, or a game against nature. For each probability distribution over the state of the world (nature`s strategies), she has a weak order over her acts (pure strategies). We formulate conditions on these weak orders guaranteeing that they can be jointly...

The systematic optimism of lawyers is even more of a puzzle. A lawyer suffering from a persistent problem of inaccurate assessments will surely be driven out of the market. The present analysis challenges these conventional allegations. Using evolutionary game theory, we demonstrate that `market...