How are people using agentic AI tools to change the way they work? My team at OpenAI looked into this, using data from Codex that lets us measure agentic AI usage among individual users, organizational account users, and workers at OpenAI.

1/ What does the social fabric of an entire country look like? We built a nation-scale social network of Denmark — 7.2 million people, 1.4 billion ties, 14 years of data. Here’s what we found 👇 📄 doi.org/10.1038/s415... #NetworkScience #Sociology

Unveiling the social fabric through a temporal, nation-scale social network and its characteristics - Scientific Reports

Scientific Reports - Unveiling the social fabric through a temporal, nation-scale social network and its characteristics

doi.org

I'm excited to present at @ic2s2.bsky.social in Norrköping! Wednesday at 10, I'll give a lightning talk about how to measure cross-class social connections (almost) everywhere on Earth. I'll also have two posters up in the Weds session. If you're here, I'd love to chat social networks, etc!

The Economist published an article today about my team's research on measuring social ties between men and women. The article had cool original analyses, including showing that the rate of cross-gender ties among close (top 5) friends is predicted by an index of sexism (a 🧵)

My team's paper on cross-gender friendships is out today in the AEA Papers & Proceedings. We use data from Facebook to show where connections between men and women are more (blue) and less (red) common, in almost every country, and release the data publicly! A 🧵 of maps:

My team's paper on cross-gender friendships is out today in the AEA Papers & Proceedings. We use data from Facebook to show where connections between men and women are more (blue) and less (red) common, in almost every country, and release the data publicly! A 🧵 of maps:

An amazing visualization from the NYT of some research from my team: www.nytimes.com/interactive/...

Opinion | To Understand Global Migration, You Have to See It First

These estimates, drawn from the location data of three billion Facebook users, provide a view of human migration in extraordinary detail.

nytimes.com

I had a sneak peek at some data which is being published by Meta today, showing that Britain is less divided by class than you might expect: www.economist.com/britain/2025...

New data show that the class divide in Britain may not be so wide

They make the country look better than America

economist.com

Realized I forgot a to include a map of cross-gender social ties in North America--details on the methodology (and a link to the data) can be found in the original thread!

Drew Johnston@drew-johnston.bsky.social · last yr.

Have you ever wondered how social networks differ by gender? Check out my team's new dataset, which uses Facebook data to measure regional differences in social networks by gender all across the world! A 🧵 with examples, a description of our methodology, and a link to download the data:

Have you ever wondered how social networks differ by gender? Check out my team's new dataset, which uses Facebook data to measure regional differences in social networks by gender all across the world! A 🧵 with examples, a description of our methodology, and a link to download the data:

If you're considering an econ predoc, Theresa Kuchler + Johannes Stroebel are hiring a predoc to work on social networks projects, starting fall 2025. They are wonderful to work with and do very cool research (see www.nature.com/articles/s41...) . Apply at: apply.interfolio.com/161883

Social capital I: measurement and associations with economic mobility - Nature

Analyses of data on 21 billion friendships from Facebook in the United States reveal associations between social capital and economic mobility.

nature.com

I'm presenting "Social Capital Around the World" Saturday @ 8am at AEAs. We use data from 2.5 billion Facebook accounts to measure cross-class and cross-gender friendships globally, and explore how they connect to downstream outcomes like intergenerational mobility. www.aeaweb.org/conference/2...