We determined the prevalence and correlates of cannabis use in Massachusetts after
recreational use was passed, but before recreational cannabis stores opened. A cross …

Background Cannabis policy is developing faster than empirical evidence about policy
effects. With a panel of experts in substance use policy development and research, we …

In this chapter, we discuss the potential policy implications of the observation that some
cannabis users become dependent on the drug in the sense that they lose control of their …

Abstract In December of 2012, Washington and Colorado implemented the legalization of
possession and use of marijuana for recreational purposes. Following this, January of 2014 …

Background and aims Recreational cannabis was legalized in Canada in October 2018.
Initially, the Government of Ontario (Canada's largest province) placed strict limits on the …

State policies related to cannabis have rapidly evolved but the impact of current legislative
frameworks on usage is not well characterized. This study explored cannabis use patterns …

Aim To examine briefly the (i) rationales for two policy proposals in the United States to
make it mandatory for cigarettes to contain very low levels of nicotine and to legalize …

Background There is substantial geographic variability in local cannabis policies within
states that have legalized recreational cannabis. This study develops an interpretable …

As of 2019, 11 US states (and Washington, DC) had legalized recreational marijuana and
33 states had legalized medicinal marijuana. In 2012, Colorado and Washington State …

Background: A number of countries are legalizing the supply of cannabis or are considering
doing so. Beyond top-level design questions (eg, who gets to supply and how will it be …