Study tests which marijuana tax curbs consumption best
NCT ID NCT06848543
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This completed study from Ohio State University looked at how different tax structures—based on weight, price, or potency—might change marijuana buying habits. Researchers surveyed nearly 4,700 adults and teens, asking them to make hypothetical purchases under various tax scenarios. The goal was to understand which tax approach could reduce consumption without driving people to illegal markets.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- What this could lead to
- If successful, this research could help policymakers design tax systems that reduce harmful marijuana use while generating revenue.
- What could go wrong
- This is a survey-based study using hypothetical purchases, not real buying behavior. Results may not reflect actual market responses.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
-
Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
-
4,696 people
The number who actually took part.
- Started
-
Jun 2024
- Finished
-
Apr 2026
- Lead sponsor
-
Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
-
15 years and older
- Sex
-
Anyone
- Healthy volunteers
-
Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion: Adults: * aged 21 years and older * must be past-30-day dual users of recreational marijuana Adolescents and young adults * ages 15-20 * susceptible to marijuana use Exclusion: * adults older than 21 years who are not using marijuana for recreational purposes * youth under age 15 * teens and young adults who are not susceptible to marijuana use
Get updates
Get notified about this study
Sign up to get updates when this study changes or when new studies for Hypothetical cannabis purchase are added.
By submitting, you agree to our Terms of use
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
Center for Tobacco Research OSU
Columbus, Ohio, 43214, United States