Preventive dental care and automotive service is intended to prevent problems that, if they materialized, would require costly treatment or repair. In these markets fraud is both persistent and pervasive. This paper analyzes these markets invoking the notion of weak perfect Bayesian equilibrium...

In Harsanyi's impartial observer theorem, an impartial observer determines a social ordering of the lotteries on the set of social alternatives based on a sympathetic but impartial concern for all individuals in society. This ordering is derived from a more primitive ordering on the set of all...

In this paper we consider how the presence of private information may explain the failure of the private sector to provide unemployment insurance. In particular, we show how the interaction of private information regarding employees' preferences for work with the unobservable level of effort...

In this paper, we report the results of experiments designed to test whether individuals and groups abide by the axioms of monotonicity, with respect to first-order stochastic dominance and Bayesian updating, when making decisions in the face of risk. The results indicate a significant number of...