We test for differences across the two most recent NHANES survey periods (19881994 and 1999 2004) in self-perception of weight status. We find that the probability of self-classifying as overweight is significantly lower on average in the more recent survey, for both men and women, controlling...

According to principal-agent theory, a share contract strikes an optimal balance between risk-sharing and incentive provision when it is difficult to gauge the agent's contribution. This theory predicts that the size of the share should vary with economic fundamentals. In practice, however, the...

Location-specific norms of behavior are a widespread phenomenon. In the case of medical practice, numerous studies have found that geographic location exerts a strong influence on the choice of treatments and procedures. This paper shows how the presence of social influence on treatment...