ArticleThe journal of primary prevention2017
Early Impacts of Marijuana Legalization: An Evaluation of Prices in Colorado and Washington.
Article in The journal of primary prevention, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
19 citing papers in PubMed, 1 synthesis or guideline pooled it.
- International Perspectives on the Implications of Cannabis Legalization: A Systematic Review & Thematic Analysis.International journal of environmental research and public health · 2019Pooled it
- Adolescent Cannabis Use After Cannabis Legalization and the COVID-19 Pandemic.JAMA network open · 2026Article
- Estimating the Price Elasticity of Cannabis Use Among U.S. Adults: Evidence from States with Recreational Cannabis Commercialization.Cannabis and cannabinoid research · 2025Article
- The Impact of Recreational Cannabis Markets on Cannabis Use Among Adolescents and Adults: A Synthetic Control Analysis.Cannabis (Albuquerque, N.M.) · 2025Article
- Health, safety, and socioeconomic impacts of cannabis liberalization laws: An evidence and gap map.Campbell systematic reviews · 2023Article
- The supply-side effects of cannabis legalization.Journal of cannabis research · 2022Article
- Association of Tetrahydrocannabinol Content and Price in Herbal Cannabis Products Offered by Dispensaries in California: A Purview of Consumers/Patients.Frontiers in public health · 2022Article
- Illegal drug market responses to state recreational cannabis laws.Addiction (Abingdon, England) · 2021Article
- Medical Cannabis for Headache Pain: a Primer for Clinicians.Current pain and headache reports · 2021Review
- Density of medical and recreational cannabis outlets: racial/ethnic differences in the associations with young adult intentions to use cannabis, e-cigarettes, and cannabis mixed with tobacco/nicotine.Journal of cannabis research · 2021Article
- Natural Cannabinoids as Templates for Sleep Disturbances Treatments.Advances in experimental medicine and biology · 2021Article
- Marijuana Legalization in Colorado: Increasing Potency, Changing Risk Perceptions, and Emerging Public Health Concerns for Youth.Adolescent psychiatry (Hilversum, Netherlands) · 2021Article
- Sociopolitical Externalities Impacting Worker Health in Washington State's Cannabis Industry.Annals of work exposures and health · 2020Article
- Retrospective cross-sectional analysis of the changes in marijuana use in the USA, 2005-2018.BMJ open · 2020Article
- Interpol review of controlled substances 2016-2019.Forensic science international. Synergy · 2020Review
- Article
- The impacts of potency, warning messages, and price on preferences for Cannabis flower products.The International journal on drug policy · 2019Article
- Early evidence of the impact of cannabis legalization on cannabis use, cannabis use disorder, and the use of other substances: Findings from state policy evaluations.The American journal of drug and alcohol abuse · 2019Review
- The emerging marijuana retail environment: Key lessons learned from tobacco and alcohol retail research.Addictive behaviors · 2018Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors.
Funding
Abstract
Following the legalization and regulation of marijuana for recreational purposes in states with medical markets, policymakers and researchers seek empirical evidence on how, and how fast, supply and demand changed over time. Prices are an indication of how suppliers and consumers respond to policy changes, so this study uses a difference-in-difference approach to exploit the timing of policy implementation and identify the impacts on marijuana prices 4-5 months after markets opened. This study uses unique longitudinal survey data of prices paid by consumers and a web-scraped dataset of dispensary prices advertised online for three U.S. medical marijuana states that all eventually legalized recreational marijuana. Results indicate there were no impacts on the prices paid for medical or recreational marijuana by state-representative residents within the short 4- to 5-months window following legalization. However, there were differences in how much people paid if they obtained marijuana for recreational purposes from a recreational store. Further analysis of advertised prices confirms this result, but further demonstrates heterogeneous responses in prices across types of commonly advertised strains; prices either did not change or increased depending on the strain type. A key implication of our findings is that there are both supply and demand responses at work in the opening of legalized markets, suggesting that evaluations of immediate effects may not accurately reflect the long run impact of legalization on consumption.
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What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.