This paper isolates the causal effect of policing on group violence, using unique panel data on self-reported crime by soccer and ice hockey hooligans. The problem of reverse causality from violence to policing is solved by two drastic reallocations of the Stockholm Supporter Police unit to...

This paper studies the effect of surveillance cameras on crime in the Stockholm subway. Beginning in 2006, surveillance cameras were installed in the subway stations at different points in time. Difference-in-difference analysis reveals that the introduction of the cameras reduced crime by...

This paper investigates the determinants of academic achievements of post-reform undergraduate students of Ca’ Foscari University of Venice. Academic achievements are measured with the students’ grade point averages and time to graduation. The set of independent variables contains...

We present a model to test the null hypothesis that firms organize their corporate governancearrangements optimally given the constraints they face. Following the literature, the modelrejects the null if the conditional correlation between governance and performance issignificantly different...

This study examines the relationship between maternal behavior during pregnancy, birth outcomes, and early childhood development. Specifically, in the context of four measures of maternal behavior during pregnancy (maternal smoking, drinking, prenatal care, and maternal weight gain), three...