A fixed budget must be allocated to a finite number of different projects with uncertain outputs. The expected marginal productivity of capital in a project first increases then decreases with the amount of capital invested. Such behavior is common when output is a probability (of escaping...

Requiring agents with private information to select from a menu of incentive schedules can yield efficiency gains. It will do so if, and only if, agents will receive further private information after selecting the incentive schedule but before taking the action that determines where on the...

Humans naturally dispose of objects that disgust them. Is this phenomenon so deeply embedded that even incidental disgust--i.e., where the source of disgust is unrelated to a possessed object--triggers disposal? Two experiments were designed to answer this question. Two film clips served as...