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...

Drugs and crime are known to be correlated, but the direction of causality and the magnitude of the relationship have not been well established. We take a new approach to estimating this relationship and examine a little used, multi-site dataset of 3,500 inner-city drug users entering treatment....