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

Using state-level data for the period 1990 through 2007, we estimate the effect of legalizing medical marijuana on suicide rates. Our results suggest that the passage of a medical marijuana law is associated with an almost 5 percent reduction in the total suicide rate, an 11 percent reduction in...

A number of studies have shown that childhood speech impairments such as stuttering are associated with lower test scores and educational attainment. However, it is unclear whether this result is causal in nature or whether it can be explained by difficult-to-measure heterogeneity at the...

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...

While migraine headache can be physically debilitating, no study has attempted to estimate its effects on labor market outcomes. Using data drawn from the National Longitudinal Study of Adolescent Health, we estimate the effect of migraine headache on labor force participation, hours worked, and...