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Background and aims: There are concerns that availability of recreational cannabis dispensaries (RCDs) and point‐of‐sale marketing may lead to increased cannabis use in jurisdictions where cannabis retail sale is legal. This paper examined whether the availability RCDs and the presence of storefront signage indicative of cannabis and signs promoting health benefits in RCDs were associated with cannabis use and risk perceptions. Design: Cross‐sectional, secondary data analysis. Setting: California, USA. Participants: A representative sample of 3385 adults in California who participated in the 2020 probability‐based Marijuana Use and Environment Survey. Measurements Binary outcomes included past‐month overall cannabis use, perceiving cannabis smoking as harmful and past‐month cannabis use by purpose (medical only, recreational only and dual). The objectively assessed predictors included proximity and density of RCDs and presence of storefront signage indicative of cannabis and signs promoting health benefits in RCDs. Findings In terms of proximity, thepresence of storefront signage in the nearest RCD was associated with smaller odds of perceiving cannabis smoking as harmful [odds ratio (OR) = 0.63, 95% confidence interval (CI) = 0.39, 0.99] if the RCD was located within 2 miles of home. Presence of health benefit signs in the nearest RCD was associated with greater odds of overall cannabis use (OR = 2.45, 95% CI = 1.17, 5.16) and recreational use (OR = 3.50, 95% CI = 1.027, 11.91) if the RCD was located within 2–4 miles of home. In terms of density, count of RCDs, count of RCDs with storefront signage and count of RCDs with health benefit signs within 2 miles of home were each separately associated with greater odds of overall cannabis use and cannabis use for dual purposes. Conclusions: The availability of recreational cannabis dispensaries within 2 miles of one's home and the presence of storefront signage indicating the availability of cannabis and signs promoting health benefits of cannabis appear to be associated with increased cannabis use and reduced risk perceptions among adults in California, USA. [ABSTRACT FROM AUTHOR]

ABSTRACT Aims No modern jurisdiction has ever legalized commercial production, distribution and possession of cannabis for recreational purposes. This paper presents insights about the effect of legalization on production costs and consumption and highlights important design choices. Methods Insights were uncovered through our analysis of recent legalization proposals in California. The effect on the cost of producing cannabis is largely based on existing estimates of current wholesale prices, current costs of producing cannabis and other legal agricultural goods, and the type(s) of production that will be permitted. The effect on consumption is based on production costs, regulatory regime, tax rate, price elasticity of demand, shape of the demand curve and non-price effects (e.g. change in stigma). Results Removing prohibitions on producing and distributing cannabis will dramatically reduce wholesale prices. The effect on consumption and tax revenues will depend on many design choices, including: the tax level, whether there is an incentive for a continued black market, whether to tax and/or regulate cannabinoid levels, whether there are allowances for home cultivation, whether advertising is restricted, and how the regulatory system is designed and adjusted. Conclusions The legal production costs of cannabis will be dramatically below current wholesale prices, enough so that taxes and regulation will be insufficient to raise retail price to prohibition levels. We expect legalization will increase consumption substantially, but the size of the increase is uncertain since it depends on design choices and the unknown shape of the cannabis demand curve. [ABSTRACT FROM AUTHOR]