Health insurance and opioid deaths: Evidence from the Affordable Care Act young adult provision

The concurrence of health insurance expansion under the Affordable Care Act (ACA) and increasing opioid‐related mortality has led to debate whether insurance increases or decreases opioid deaths. I use the introduction of the ACA young adult (YA) provision as a quasi‐experiment and utilize the resulting policy‐induced variation across states over time in YA access to insurance to study the effect of coverage on opioid‐related mortality. I rely on the share of state populations which stood to gain insurance before the ACA to perform a dose–response analysis, and find that the YA provision reduced opioid‐related mortality. The analysis suggests that 1 percentage point more coverage reduced opioid mortality among YA by 2.5/100,000 or 19.8%.