期刊
DRUG AND ALCOHOL REVIEW
卷 39, 期 4, 页码 337-346出版社
WILEY
DOI: 10.1111/dar.13069
关键词
cannabis; health policy; legalisation; drug
资金
- Canadian Institutes of Health Research
- Canadian Institutes of Health Research-Public Health Agency of Canada Applied Chair in Public Health
Introduction and Aims There is little objective market data on the price or potency of legal and illegal cannabis products following recreational cannabis legalisation. Design and Methods In the 2 months post-legalisation in Canada (November-December 2018), legal and illegal cannabis retailers were identified from government lists and online directories. The store location, price and Delta 9-tetrahydrocannabinol (THC) and cannabidiol levels of dried herb and cannabis cookies were collected from retailer websites or Weedmaps. Results We identified 185 legal retailers (22 online stores, 163 storefronts; 65 government-run stores, 120 private stores) and 944 illegal retailers (791 delivery-only services, 157 storefronts). Relative to legal dried herb, illegal dried herb was lower in price (1 g: $10.23 vs. $11.08, 1/8 oz: $9.37/g vs. $10.88/g, 1/2 oz: $8.18/g vs. $8.85/g; P < 0.05 for all) and higher in potency (THC: 20.5% vs. 16.1%, cannabidiol: 2.4% vs. 1.7%; P < 0.05 for both). Legal private stores had higher prices for dried herb than government-run stores (1 g: $13.08 vs. $10.89, 1/8 oz: $12.75/g vs. $10.45/g, 1/2 oz: $10.85/g vs. $8.71/g, 1 oz: $8.54/g vs. $7.22/g; P < 0.05 for all). On average, one cannabis cookie in the illegal market contained 96 mg of THC and cost $1.57 per 10 mg of THC. Discussion and Conclusions In the 2 months post-legalisation, illegal cannabis was less expensive, with higher labelled THC content than legal cannabis, although the scope of these differences was more modest than estimates from other crowdsourced and self-reported data. Direct monitoring of cannabis price and potency from legal and illegal retailers is needed to examine the impact of legalisation over time.
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