Background: Whether alcohol and cannabis complement or substitute each other has been
studied for over two decades. In the changing cannabis policy landscape, debates are …

PURPOSE The liberalization of cannabis policies has the potential to affect the use of other
substances and the harms from using them, particularly alcohol. Although a previous review …

Thirty-six states have legalized medical marijuana and 18 states have legalized the use of
marijuana for recreational purposes. In this paper, we review the literature on the public …

Background The overall prevalence of US young adult alcohol use has decreased, but little
is known about historical change in related behaviors such as simultaneous alcohol and …

Background Whether medical or recreational cannabis legalization impacts alcohol or
cigarette consumption is a key question as cannabis policy evolves, given the adverse …

We describe identification assumptions underlying synthetic control studies and offer
recommendations for key—and normally ad hoc—implementation decisions, focusing on …

In 2017, substance use cost Canadians almost $46.0 billion, led to over 275,000
hospitalizations and contributed to the loss of nearly 75,000 lives. This report presents the …

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 …

Despite nearly 70 percent of the American public supporting legalization of recreational
marijuana, opponents argue that increased marijuana use may diminish motivation, impede …

The rates of cannabis use have been narrowing between sexes over the past decade, and
there are sex differences in the perception of cannabis use-related risks, yet it remains …