A non-trivial portion of traffic fatalities involve alcohol or illicit drugs. But does the use of alcohol and illegal substances - which is linked to depression, suicide, and criminal activity - also reduce academic performance? Recent studies suggest that drinking alcohol has a negative, if...

In this paper we use longitudinal data on Swiss adolescents to nvestigate the impact of cannabis use on short-term educational performance. We focus our analysis on high school students and analyze various outcomes, including absenteeism, grades, and motivation. We exploit the panel nature of...

We use unique survey data linked to nearly a decade of administrative welfare data to examine the relationship between early marijuana use (at age 14 or younger) and young people's educational outcomes. We find evidence that early marijuana use is related to educational penalties that are...