P O L I C Y B R I

Washington State found that monthly use increased if someone lived within 18.4 miles of a retailer but frequent use Adult use: The impact of adult-use cannabis legalization only increased if someone lived within 0.8 miles of a on the use of the substance by adults has been extensively retailer.9 The outcome of increased cannabis use appears to studied. [...] Weinberger, et al., A difference-in-difference approach to examining the impact of cannabis legalization on disparities in the use of cigarettes and cannabis in the United States, 2004–17, Addiction (2022) (finding that cannabis legalization increased cannabis use among those aged 25 years old or older); Grant W. [...] 1 (2020) (finding that use of cannabis by par- ents increased in both states that legalize adult-use and those that do not post-legalization; the intensity of increased use was slightly higher in the states that did legalize adult-use cannabis); Davide Dragone, et al., Crime and the legalization of recreational marijuana, 159 J. [...] Dilley, et al., Prevalence of Cannabis Use in Youths After Legalization in Washington State, 173 JAMA Pediat- rics 192 (2019) (finding that adult use legalization in Washington was associated with a decline in marijuana use among 8th and 10th graders); Ashley Brooks-Russell, et al., Adolescent Marijuana Use, Marijuana-Related Perceptions, and Use of Other Substances Before and After Initiation of. [...] Public Health 1500 (2013) (finding that adoption of medical marijuana laws in Montana, Delaware, and Rhode Island did not impact the prevalence of monthly or lifetime use of marijuana use among youth); Hollingsworth, supra note 2 (finding that legalization of medical cannabis had no impact on past-year marijuana use by adolescents in the first 34 states).