The probability of being depressed increases dramatically during adolescence and is linked to a range of adverse outcomes. Many studies show a correlation between religiosity and mental health, yet the question remains whether the link is causal. The key issue is selection into religiosity. We...

This paper develops a new approach to identifying peer achievement spillovers in the context of an equilibrium model of student effort choices. By focusing on the effect of contemporaneous peer achievement, this framework integrates previously unexplored types of heterogeneity in peer spillovers...