Surveyed to Death? open.substack.com/pub/jasonmfl...

We Selected on Independence—Does AI Make It Obsolete? (part 1) open.substack.com/pub/jasonmfl...

The Transitivity Fallacy in Academic Publishing open.substack.com/pub/jasonmfl...

Assistant Professor Héctor Pifarré i Arolas and Professor @jasonmfletcher.bsky.social co-authored a new study suggesting longevity gains across all states and regions for those born from 1941-2000, contrasting previous claims of stagnation and divergence across regions. 🔗 Read more: buff.ly/wbmQAR1

I'm co-organizing a free, 2-day Zoom workshop from the NAS & hope you'll consider attending! 📅 April 23-24: Discuss how we can enhance scientific integrity in the social and behavioral sciences REGISTER: www.nationalacademies.org/projects/DBA... PROGRAM: www.nationalacademies.org/cdn/material...

Our new paper challenges a bleak picture of U.S. state longevity gaps: universal cohort gains (1941–2000) & a more nuanced regional story than recent estimates. News: eurekalert.org/news-release... BMJ Open: bmjopen.bmj.com/content/16/4...

The Beauty of Slow Research Assistants open.substack.com/pub/jasonmfl...

The NIH Grant Lottery: Buy More Tickets, or Pick Better Numbers? open.substack.com/pub/jasonmfl...

Substack Post: Better Disagreement Through AI

AI and the End of the Dataset Monopolist...in some fields open.substack.com/pub/jasonmfl...

Will AI Kill Economics’ Comparative Advantage among the social sciences? open.substack.com/pub/jasonmfl...

Substack: The One-Shot Paper Isn’t One Shot

Substack: Can AI fix journal reviewing...a little? substack.com/@jasonmfletc...

Substack: Interdisciplinary arbitrage and an AI-assisted research paper (paper 2 of n)

I am so excited to share that I will be joining the La Follette School of Public Affairs at the University of Wisconsin–Madison as an assistant professor in Fall 2027, after spending the 2026–2027 academic year as a Frank H.T. Rhodes Postdoctoral Fellow at the Cornell Population Center!

Substack: The Postdoc Isn’t One Thing

Substack: "Owning All the Numbers." A key step in research training.

“When I grew up I did become a scientist, a social scientist. I’m an economist, which allows me to study how we humans coordinate and cooperate and compete with each other, in ways that have made us, on average, live longer and healthier lives.” #econsky marketdesigner.blogspot.com/2026/03/ps-2...

Substack: From Training RAs to Training Workflows

Ongoing work with @hamidnb.bsky.social on NAFTA and mortality nber.org/papers/w34840

Substack: Which AI? Why researchers are talking past each other more than ever

In the classic Chains of Affection paper in AJS, Bearman et al found that four-cycles -- two couples switch partners -- were non-existent in a network of high schoolers romantic ties. They also found a giant component of exes exes. I take their ideas to the full network of Norwegian partnerships.

Substack: A Hidden Productivity Gain from AI: Testing, Reporting, and Abandoning Low-Return Ideas

Substack: Running up that hill...how will AI shape pre and post tenure research productivity?

Substack: Saving lives: lifting many boats or patching holes

Substack: Hidden Curriculum: picking journals

Substack: The Return of the Office Supercomputer

Substack: AI and Bottlenecks in Academic Publishing Wide variation in predictions! what is your view?

Substack: Mentoring advice

Substack: Two regrettable rules for junior scholars: AI supercharges my long standing advice (post 4 of 4) open.substack.com/pub/jasonmfl...

Substack: Two regrettable rules for junior scholars: second rule: be an adequate teacher (post 3 of 4)

substack: Peter Attia in the news again tinyurl.com/4ys7avcs

Substack: Why working with graduate students is often negative expected value (for pre‑tenure output)

My Substack: AI-integrated research; a novel tradeoff and partial solution (part 1 of n) open.substack.com/pub/jasonmfl...

From my Substack: Two regrettable rules for junior scholars (and why I’m writing them down) (post 1 of 4) tinyurl.com/379ucn8w

National Institutes of Health Director Jay Bhattacharya will also temporarily become acting director of the Centers for Disease Control and Prevention, an administration official said Wednesday. https://to.pbs.org/4tJjH19

The Mentorless Apprentice open.substack.com/pub/jasonmfl...

📢🧬 Call for Papers — 5th ESSGN Conference 📍 Bologna, May 21–22, 2026 I’ll be co-organising the 5th ESSGN conference in Bologna together with Nicola Barban, Stephanie von Hinke, Paul Hufe, and Niels Rietveld @essgn.bsky.social 📄 Submit here: forms.gle/fmVDUrQqQYju... 🗓 Deadline: 1 March 2026

Shamelessly tagging a few people for reposts and share #ESSGN5conf @nicolabarban.bsky.social @paulhufe.net @aysuo.bsky.social @dr-appie.bsky.social @michelnivard.bsky.social @rafaelahlskog.bsky.social @danbelsky.bsky.social @kph3k.bsky.social @jasonmfletcher.bsky.social @rosacheesman.bsky.social

Thoughts from a newbie using Claude Code for the first time. I don’t always use GitHub for my projects, but with Claude Code it feels like a must. Having a tool read and write files without version control is just too scary.

Econ and CS collaboration conference on AI (etc.) Just a few days left to submit a paper. mailing.econometricsociety.org/t/r-e-tkdhid...

Useful analysis by @arbelharpak.bsky.social‬ and co-authors "Confounding fuels misinterpretation in human genetics" doi.org/10.1098/rspb...

In 2018, Eric Turkheimer took a bet with Charles Murray, who said that by 2025, the genetics of intelligence would be basically understood. Turkheimer knew otherwise. “I am here to declare that I was more right,” Turkheimer writes.

The first paper from my postdoc is now live. I learnt a lot from my mentor/coauthor @jasonmfletcher.bsky.social in this and our other projects. Full article: Trend breaks in life expectancy in the United States over 120 years and potential sources of future gains www.tandfonline.com/doi/full/10....

Yo #econsky, we're hiring a new Chair for the School of Economics at Georgia Tech (we always do external searches). Come steer the ship! We have a great, vibrant group of applied micro faculty and students (enviro, health, dev, trade) + metrics + theory. www.aeaweb.org/joe/listing....

My quote of the day My dad used to say: “Don't tell me what you value. Show me your budget, and I'll tell you what you value." Joseph R. Biden, Jr.

This whole thread is great, but I particularly appreciate this idea of a “ladder” of research questions implied by a broader theory (and we should be very clear about which question we are attempting to answer in a given paper)

👶 Do early life conditions shape how long/well we live? Find out w/ @Jasonmfletcher.bsky.social (UW-Madison): 🗓️ 27 May | 🕑 2–3:30pm | @nuffieldcollege.bsky.social Oxford 👉https://www.demography.ox.ac.uk/news/jason-fletcher-gives-lcds-seminar-moving-forward-looking-back-new-evidence-early-life-shapes