Over the last few years, marijuana has become legally available for recreational use to roughly a quarter of Americans. Policy makers have long expressed concerns about the substantial external costs of alcohol, and similar costs could come with the liberalization of marijuana policy. Indeed,...

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....

Overdose deaths from prescription opioid pain relievers nearly quadrupled between 1999 and 2010, making this the worst drug overdose epidemic in U.S. history. In response, numerous supply-side interventions have aimed to limit access to opioids. However, these supply disruptions may have the...

The median United States voter supports the legalization of marijuana, at least in part due to a desire to increase state tax revenues. However, states with legal markets have implemented wildly different regulatory schemes with tax rates ranging from 3.75 to 37 percent, indicating that policy...

Objectives: This study estimates the value that clients place on drug rehabilitation services at the time of intake and how this value varies with the probability of success and availability of social services.Methods: We interviewed 241 heroin users who had been referred to, but had not yet...