How Different Cannabis Tax Structures Affect Teen and Young Adult Purchasing
In 1,100 youth and young adults, higher taxes reduced cannabis and THC consumption, but potency-based taxes had the paradoxical effect of increasing consumption of low-THC products.
Quick Facts
What This Study Found
Higher pre-tax prices and tax rates reduced both quantity and THC consumption among youth/young adults. Potency-based taxes reduced high-THC product use but increased low-THC consumption by 30-32%, and tax impacts could be offset by shifting to illegal products.
Key Numbers
1,100 AYAs ages 15-20. Price elasticity: -0.3. Potency-based taxes increased cannabis quantity 30-32% vs. weight-based. Tax rates beyond 60% of pretax prices showed no additional reduction.
How They Did This
Split-sample volumetric choice experiment with 1,100 nationally representative youth and young adults (ages 15-20), randomized to weight-, price-, or potency-based tax conditions with varying prices, rates, and THC levels.
Why This Research Matters
Youth are particularly vulnerable to cannabis harms, yet tax policy designed to reduce potency could backfire by increasing overall consumption of lower-THC products or driving youth to the illegal market.
The Bigger Picture
Cannabis tax policy involves tricky trade-offs for youth protection. Reducing access to high-potency products is good, but if youth just consume more low-potency products or shift to the illegal market, the net health impact may be neutral or negative.
What This Study Doesn't Tell Us
Hypothetical purchase tasks may not reflect real behavior. Ages 15-20 includes both legal and underage purchasers. Illegal market availability assumed rather than measured.
Questions This Raises
- ?Is there a tax rate that optimally discourages youth use without driving them to illegal markets?
- ?Would tiered tax structures outperform simple potency or weight-based approaches?
Trust & Context
- Key Stat:
- Evidence Grade:
- Nationally representative sample with experimental design, but hypothetical choices and complex tax interactions limit definitive conclusions.
- Study Age:
- Recent study addressing the critical question of how cannabis tax design specifically affects the most vulnerable age group.
- Original Title:
- How tax structures for retail cannabis shape cannabis use among youth and young adults: evidence from a volumetric choice experiment.
- Published In:
- The European journal of health economics : HEPAC : health economics in prevention and care (2025)
- Authors:
- Xu, Lei, He, Yanyun(2), Park, Hojin(2), Zhang, Shiqi, Ma, Shaoying, Shang, Ce
- Database ID:
- RTHC-07988
Evidence Hierarchy
Frequently Asked Questions
Do cannabis taxes reduce teen use?
Higher prices and taxes do reduce quantity purchased in this experimental setting. However, the effect plateaus around 60% tax rates, and youth may shift to illegal sources to avoid taxes.
Is taxing by potency better for protecting youth?
It reduces high-THC product consumption but paradoxically increases low-THC product use by 30-32%. The authors suggest tiered tax structures might balance these trade-offs better.
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Cite This Study
https://rethinkthc.com/research/RTHC-07988APA
Xu, Lei; He, Yanyun; Park, Hojin; Zhang, Shiqi; Ma, Shaoying; Shang, Ce. (2025). How tax structures for retail cannabis shape cannabis use among youth and young adults: evidence from a volumetric choice experiment.. The European journal of health economics : HEPAC : health economics in prevention and care. https://doi.org/10.1007/s10198-025-01875-3
MLA
Xu, Lei, et al. "How tax structures for retail cannabis shape cannabis use among youth and young adults: evidence from a volumetric choice experiment.." The European journal of health economics : HEPAC : health economics in prevention and care, 2025. https://doi.org/10.1007/s10198-025-01875-3
RethinkTHC
RethinkTHC Research Database. "How tax structures for retail cannabis shape cannabis use am..." RTHC-07988. Retrieved from https://rethinkthc.com/research/xu-2025-how-tax-structures-for
Access the Original Study
Study data sourced from PubMed, a service of the U.S. National Library of Medicine, National Institutes of Health.
This study breakdown was produced by the RethinkTHC research team. We analyze and report published research findings without making health recommendations. All interpretations are based solely on the published abstract and study data.