Beau Kilmer

What do U.S. adults think about the legal use of #psychedelics & other drugs?

% supporting legal use:

#Cannabis-65%
#Psilocybin-23%
#LSD-10%
#MDMA-9%
#Cocaine-8%

New @rand.org report does a deep dive, going beyond this simple yes/no/don't know question ⬇️

www.rand.org/pubs/researc...

Public Opinion on Legalizing Psychedelics The 2025 RAND Psychedelics Survey is the first probability-based and nationally representative survey to measure U.S. public opinion about legalizing three psychedelic substances: psilocybin mushrooms...

🎉🎉 2nd report from the 2025 RAND Psychedelics Survey is live!

Nearly 25% of Americans support the legal use of psilocybin “magic” mushrooms. This is similar to the level of support for cannabis before U.S. states started passing medical cannabis laws in the late 1990s

www.rand.org/pubs/researc...

📢 Predoc Opportunity

I'm hiring a full-time predoc to work with me at UC Berkeley, supporting my research on labor economics, the economics of education, and public policy.

jesse-rothstein.com/rothstein_pr...

Please pass on to anyone who might be interested.

#econsky #econ_ra

One of the most important statistical packages made in Econ in the last decade

U.S. Psychedelic Use and Microdosing An estimated 10 million U.S. adults reported microdosing psilocybin, LSD, or MDMA in 2025. That's according to a new RAND study that draws on a first-of-its-kind survey.

An estimated 10 million U.S. adults microdosed psilocybin, LSD, or MDMA in 2025.

New insights from a first-of-its-kind RAND survey on Americans' use of psychedelics... 🧵
bit.ly/3LEfECa

U.S. Psychedelic Use and Microdosing An estimated 10 million U.S. adults reported microdosing psilocybin, LSD, or MDMA in 2025. That's according to a new RAND study that draws on a first-of-its-kind survey.

🎉 First publication from the 2025 RAND Psychedelics Survey is live!

1⃣ Psilocybin = Most popular among U.S. adults 18+

2⃣ Amanita muscaria mushrooms 🍄 in the Top 5

3⃣ Approx. 10 million U.S. adults microdosed psilocybin, LSD or MDMA in the past year

www.rand.org/pubs/researc...

Did the illicit fentanyl trade experience a supply shock? A synthesis of government and social media data suggests a disruption, possibly tied to events in China

US fentanyl deaths ⬇️ > 40% in the past 2 years. Why?

Many hypotheses but few explain very sudden drop

New paper @science.org suggests part of the story could be reduced access to precursor chemicals

More to be done but article & appendix are important contributions
www.science.org/doi/10.1126/...

Opinion | States made marijuana use legal. Now they should get it off the road. There’s no breathalyzer test for driving under the influence of cannabis. But there are other options.

Bulk of the evidence finds driving drunk is worse than driving stoned. But driving stoned is still worse than driving sober

#THC is lipophilic, creating challenges for detecting #cannabis DUIs

My latest w/ Keith Humphreys @washingtonpost.com offers some ideas
www.washingtonpost.com/opinions/202...

What’s the potential impact of Trump’s executive order to reclassify marijuana from Schedule I to Schedule III? CCJ member @beaukilmer.bsky.social of RAND's Drug Policy Research Center shared with @pbsnews.org what this could mean for users, businesses, and research. 🧵

Final days to submit abstracts for the #ISSDP2026 conference. Don’t miss this opportunity to join leading #DrugPolicy scholars from across the globe in beautiful Perth, Australia. Go to issdp.org to submit.

So excited to welcome Prof Laura Atuesta to the ISSDP Board. Laura is an incredible researcher who has worked for years in both Colombia and Mexico plus she is committed to working with ISSDP to expand drug policy scholarship in the global south particularly Latin America. 🎉

Please consider nominating your favorite publication for the @issdrugpolicy.bsky.social Excellence in Research Award

For more info: www.issdp.org/call-for-nom...

24-hour Conference on Global Organized Crime A Talk by Professor Laura Atuesta, Phillip Screen, Hamid Azizi, Rafaella Lipschitz & Dr Peter Reuter PhD

ISSDP is running a panel at the #OC24 Conference on Global Organized Crime on “Advancing global drug market analysis.” Chaired by Professor Peter Reuter and featuring leading #DrugMarket and #DrugPolicy scholars. Please join us: oc24.heysummit.com/talks/advanc...

🚨 Nominations open for the 2026 ISSDP Excellence in Research Award!

Recognizes research published since Jan 2023 that has made a substantial innovation in how we think about/conduct #drugpolicy research

Nominate your heroes, your colleagues, or yourself! Email noms to me by Jan 15: kilmer@rand.org

An upcoming webinar will guide early and mid-career researchers through the process of developing strong applications for research grants. Sign up here: tinyurl.com/mrwmzk7k

My favorite conference is accepting abstracts!

The annual meeting of the International Society for the Study of Drug Policy (@issdrugpolicy.bsky.social) will be in Perth 🦘 June 30-July 2, 2026

Abstracts due Nov 30. Submit here: www.issdp.org

Please spread the word. Thx!

Considering Alternatives to Psychedelic Drug Prohibition Psychedelics such as psilocybin mushrooms have long been touted as holding promise for treating various mental health conditions. As more U.S. state and local officials ease regulations on the substan...

If you find this interesting and/or are looking for a much deeper dive, check this out 👇

www.rand.org/pubs/researc...

Considering Psilocybin Legalization For states considering psilocybin legalization, policymakers and researchers should be specific about the policy changes being considered and understand that there are many policy options for the supp...

Considering a change in #psilocybin policy? Some insights for NY & others:

1️⃣Be specific re: proposed changes
2️⃣There are multiple supply options
3️⃣Infrequent users drive market
4️⃣Price may be a less useful reg tool vs other subs
5️⃣Improved data=better analyses

For more 👇
www.rand.org/pubs/testimo...

Drug Policy Research Center Quarterly Newsletter The RAND Drug Policy Research Center provides a firm, empirical foundation on which sound drug policies can be built.

🚨New DPRC Quarterly is out!

🌳High potency #cannabis
⬆️Increasing intensity of #opioid use
📏Measuring #cocaine flows
1⃣ vs 3⃣ Cannabis #rescheduling
🚑911 calls & #mentalhealth

& much more!

Read & sign up for the newsletter⤵️
www.rand.org/well-being/j...

New ISSDP initiatives to increase global south participation The ISSDP Board is delighted to introduce two new initiatives to increase global south engagement in the Society. These were announced at the 2025 ISSDP Annual General Meeting and received strong s…

🚨Pls spread the word!

@issdrugpolicy.bsky.social continues to support & expand #drugpolicy research in the global south

We have a new working group (led by Bisi Akintoye, Gideon Lasco & Rosario Queirolo) & are offering 25 free memberships for ECRs in the global south

www.issdp.org/new-issdp-in...

Hold the date: The 19th annual International Society for the Study of #DrugPolicy Conference will be held in Perth, Australia hosted by the National Drug Research Institute (NDRI)!
Conference dates are 30th June to 2nd July 2026.
More details to come. www.issdp.org

#ISSDP2026

At 17, Hannah Cairo Solved a Major Math Mystery | Quanta Magazine After finding the homeschooling life confining, the teen petitioned her way into a graduate class at Berkeley, where she ended up disproving a 40-year-old conjecture.

What a fantastic accomplishment -- and what a fantastic story! www.quantamagazine.org/at-17-hannah...

Starts in 2 hours (10am Pacific) and still time to register (free)

Please join us!

👋 Hello, Bluesky!

We’re the European Union Drugs Agency — and we just turned 1.

We’re here to share how we anticipate, alert, respond and learn to help Europe tackle drug-related challenges.

👣 Follow us for updates and insights: euda.europa.eu

#ActingToday #AncitipatingTomorrow #EUDA

Attn #drugpolicy folks

@issdrugpolicy.bsky.social & @unodc.bsky.social are cohosting two webinars on July 10 re: the 2025 World Drug Report

I'm moderating the one at 10am PT. We'll hear from Laura Atuesta, Dan Ciccarone, Angela Me & Daniel Mejia

To register: tinyurl.com/yshxwstf

See you there!

ISSDP Election for a New Vice President We seek nominations to fill the vacancy of the Vice President. We wish particularly to encourage nominees from the global south.

🚨Fantastic opportunity for #drugpolicy scholars!

The International Society for the Study of Drug Policy @issdrugpolicy.bsky.social is looking for a new Vice President

Been such an honor to serve in this role. If you're curious or have ?s, let me know

Noms due 5/19
www.issdp.org/issdp-electi...

Remembering a Trailblazer in Criminal Justice Policy Mark Kleiman, 1951–2019

🎉 Congrats to Rosanna Smart @rosannasmart.bsky.social for her selection as the NASEM 2025 Mark Kleiman Innovation for Public Policy Memorial Lecturer

So happy for you!!

For those who didn't know Mark, check out this wonderful tribute by @haroldpollack.bsky.social prospect.org/culture/book...

👀 Exciting news 📣 We are extending the early bird registration fee until Friday 11th April 4pm (GMT) for #issdp2025 in Manchester. 👌👌👌

www.issdp.org

Register now to save $ and join the leading international conference of #DrugPolicy scholars.

High-Potency Cannabis Use and Health: A Systematic Review of Observational and Experimental Studies | American Journal of Psychiatry Objective: Amid continuously rising concentrations of delta-9-tetrahydrocannabinol (THC) in cannabis (i.e., potency), high-potency cannabis is a major topic in contemporary cannabis policy discussions...

New systematic review re: high-potency #cannabis use and #health

Congrats to Stephanie Lake for leading this detailed review of the observational & experimental studies

So much more work to be done on this topic

psychiatryonline.org/doi/10.1176/...

Cannabis, psychedelic mushroom kiosk at Wisconsin mall draws attention | FOX6 News Milwaukee YouTube video by FOX6 News Milwaukee

For those interested in the anecdote I shared about the vending machine in Wisconsin, here's the story 👇
www.youtube.com/watch?v=CZ5q...