Evidence of negative stereotypes, prejudice and discrimination towards obese individuals has been widely documented. However, the effect of a larger body size on social network ties or friendship formations is less well understood. In this paper, we explore the extent to which higher body weight...

Previous researchers have noted that the positive correlation between substance use and sexual behavior is stronger for white adolescents than for their black and Hispanic counterparts. Using an instrumental variables approach to control for the possible endogeneity of substance use, and data...