🔥The 9th Round of Easy Loan, Earn $40 Reward is in progress❗️ ⏰ Promotion Period: January 15th - Feburary 15th, 2025 👉 Register now and check more details at gate.io/campaigns/358

🚨 REPLICATION REPORT UPDATE: One year ago, a tweet by John B. Holbein alerted me, Olle Folke, and Joop Adema (Joop Adema) to a paper with a shocking result about Sweden’s law criminalizing the purchase of sex.🧵

10/ Please help share our extended replication to stop the spread of this erroneous policy evaluation! Read the new report here: econstor.eu/handle/10419/3…

“We on the outside of academia seem more concerned about getting to the truth than those on the inside.” - David Roodman

I'm thrilled that our boottest article recently surpassed 1000 citations. This is beyond what we ever expected. To celebrate, I’ll highlight two new features added since the article was published. The first concerns speed, the second reliability. #econTwitter 1/4

Today's metascience crossover episode: Andrew Gelman wrote up David Roodman's work on replication for his blog! statmodeling.substack.com/p/who-cares-wh…

Welcome Justin Sandefur! I take Granger-causal credit for this excellent hire. Justin came to Center for Global Development years after me, and now to Open Philanthropy years after me. A few days ago he was even sitting at my desk.

We wanted to verify the evidence behind >$1 billion in grants we've made to our top charities — so we asked I4R to see if they could get the data to replicate the underlying RCTs. It didn't go great... 🧵

GUEST BLOG at TRN ("Appeal to Me – First Trial of a “Replication Opinion”) Comments. Replications. And now "Replication Opinions". A blog from David Roodman. Check it out! David Roodman replicationnetwork.com/2025/05/31/roo…

I'm flattered. But I know Stuart, as a wise person on metascience, means this as a concrete strategy for making the world better. I agree! I'm thinking now about what I can do to promote more in-depth vetting of important studies. Peer review alone falls way short.

Fantastic work. When I was at GiveWell, we had an "I was wrong" T-shirt you could wear when found to be wrong. It made it fun to admit error and was both a signal of and contributor to a culture of truth-seeking.

A million lives at risk? Charles Kenny and I estimate the possible toll from the aid cuts in the White House's FY26 budget request. There's huge uncertainty here, of diverse kinds, so we explore 3 broad ways we could be wrong and by how much. cgdev.org/blog/million-l…

New podcast alert! Hard Drugs - a collaboration between Jacob Trefethen at Open Phil and Saloni at Works in Progress. Listen here, or wherever you get your podcasts: open.spotify.com/show/7CgKi9lO8…

"Many global health problems are thorny and difficult. Lead, unusually, is not one of those. We already know how to reduce lead exposure. Rich countries have already done it." Great new Works in Progress piece by Clare Donaldson Lauren Gilbert and James Hu

👀Using an autonomous agent based on o3-mini and GPT-4.1, a team from Harvard, MIT & other institutions reproduced and updated an entire issue of Cochrane Reviews in two days… saving 12 person-years of work! The AI reviews captured more papers & were more accurate than humans.