We studied the effect of marijuana liberalization policies on perinatal health with a multiperiod difference-in-differences estimator that exploited variation in effective dates of medical marijuana laws (MML) and recreational marijuana laws (RML). We found that the proportion of maternal...

Opioid use is one of the most substantial and long-lasting public health crises faced by the United States. This crisis, which began by the mid-1990s and continues through the time of writing, causes 136 fatal opioid overdoses each day and costs the U.S. at least $596 billion each year. These...

We examine how deaths and emergency department (ED) visits related to use of opioid analgesics (opioids) and other drugs vary with macroeconomic conditions. As the county unemployment rate increases by one percentage point, the opioid death rate per 100,000 rises by 0.19 (3.6%) and the opioid...