Adolescents' educational choices are shaped by their peers. Using administrative data covering the entire population of Italian middle school students, we show that exposure to high-achieving male peers in math reduces the likelihood that girls choose a scientific high school track. To...

While the current empirical literature on peer group effects in schools highlights that credible causal peer effects cannot be estimated unless parental sorting is taken into account, the present paper highlights that causal peer effects might be conditional on the learning environment in which...

This paper explores gender peer effects heterogeneity in adolescent Body Mass Index (BMI). We propose a utility-based non-cooperative social network model with effort technology. We allow the gender composition to influence peer effects. We analyze the possibility of recovering the fundamentals...