Joel Mittleman

@joeljm.bsky.social

Associate Professor of Sociology at Penn. Studying gender, education, ML and LGBTQ+ populations. He/him. https://sociology.sas.upenn.edu/people/joel-mittleman

As of today, Diversityland is officially out! It’s exciting/terrifying/relieving to let the book you spent years writing out into the world. I’m so deeply grateful for the village of people that helped me make it to this point.

Screenshot of Diversityland available  for sale at Bookshop.org.

Wow, I didn't expect our paper on iPhones and fertility to generate this much buzz—thanks for all the feedback! Rather than scattershot replies, here's a compilation of thoughts and new robustness checks. 🧵1/15

Three things said about AI and social science: it's a topic to study, a thing to critique, a tool to use. My new Daedalus essay argues these aren't three conversations; they're one. A 🧵 on "Field Theory: AI as Social Science Question, Object, and Tool." www.amacad.org/publication/...

Field Theory: AI as Social Science Question, Object & Tool

Uses of advanced artificial intelligence are changing how societies organize labor, govern, produce knowledge, and make meaning. In light of these developments, this essay argues that AI models, tools...

amacad.org

👋 Meet the Sociological Science Accelerator (SSA), a network for collaborative experimental sociology. Members propose research ideas 💡, the community votes 🗳️to select projects, and winning studies run across multiple labs/online using shared protocols. experimentalsociology.github.io

Sociological Science Accelerator

The Sociological Science Accelerator coordinates rigorous, reproducible experimental sociology across a global network.

experimentalsociology.github.io

On this day in 1946, Claudia Goldin was born. In 2023, she became the first woman to win a solo Nobel in economics. In 2026, she helped the players’ union for the Women’s National Basketball Association negotiate a nearly 400% raise by demonstrating that the women were woefully underpaid. #WeTheMen

Claudia Goldin throws ceremonial pitch at 2024 Red Sox game. She threw a strike.

25 years ago, marriage equality wasn't a possibility. Today, it's the law, thanks, in part, to research by the Williams Institute. Our studies & expertise informed policymakers & courts that turned a movement into a right, now embraced by hundreds of thousands of same-sex couples across the country.

1/ Safe travels to all heading to @aefpweb.bsky.social 2026! There are so many awesome panels this year. If you have time, please drop by the paper (2.13) & poster session where my PhD advisees present new work we're super excited for about immigrant-origin youth and their acculturation in the US.

Excited to see Aven Peters' innovative & rigorous study of embodiment and trans identification out in the latest AJS. Aven's study adds an essential new piece to our understanding of contemporary population patterns of trans identification and announces @avenpeters.bsky.social as a major new talent.

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Great coverage of new work by my colleague Nick Graetz (and collaborators) showing the extent of credit score-based home insurance pricing. Pricing insurance by credit score is a proxy for pricing it by poverty. (Minnesota friends, note the two local examples)

How Rising Home Insurance Costs Are Linked to Your Credit History

In many states, homeowners with “excellent” credit scores are charged less for home insurance than those with worse scores, even if they live in a disaster-prone area.

nytimes.com

Happy to share our new paper published in PNAS! Using epigenetic clocks and egocentric network data, we find each additional "hassler" in your close social network is associated with ~9 months of extra biological age and 1.5% faster pace of aging.

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VERSION 2.0 of the Segregation Tracking Project is here! New data on racial and economic segregation between neighborhoods and schools over the last 30+ years for every school district, metro area, state, county, congressional district (new!), and more! edopportunity.org/segregation/

The Educational Opportunity Project at Stanford | The Segregation Tracking Project

Use our visualizations to explore educational opportunity in your school & community.

edopportunity.org