Great cogent post on the issues of agentic coding (Eg our buddy Claude Code) and the spillover costs on everyone else lucumr.pocoo.org/2026/1/18/ag... @gmcd.bsky.social hits on the things you were complaining about

Playing this as my anthem in 2026, since apparently this is what my fellow Americans think all of us Black African immigrants from '3rd world democracies' are up to in the US *cryinglaughing, sigh: www.youtube.com/watch?v=xUYJ...

Excited to be in Philly for the #ASSA2026 meetings! Presenting tomorrow on AI adoption and the Productivity J-Curve. Cool session on whether “This time is different” when it comes to AI and productivity. Plus ca change… #Econsky

Heading to Philadelphia for the #ASSA2026. Presenting research you think our readers would be interested in? Working on something you think I should know about? Reach out here or by any of the ways linked in my bio: www.nytimes.com/by/ben-casse... #EconSky

Philly bound! ✈️ Happy New Year, everyone. Excited to present our work on tariffs and small businesses (joint w/ David Atkin and Zoe Cullen) at #ASSA2026 tomorrow. Thanks to the Association of Christian Economists for putting together a super interesting session!

Let us introduce you to Ben Weidmann!⭐ We’re pleased to welcome him to the network. His current research focuses on creating novel approaches to measure skills like teamwork, management and decision-making. 🧐 www.benweidmann.org 💼 www.linkedin.com/in/ben-weidm... 🔗 www.ifo.de/en/cesifo/ne...

Quickly added support for @apoorvalal.com 's duckreg - took approximately 60 minutes! github.com/py-econometr...

Our py-econometrics org has a new package: `maketables` is now installable from PyPi! You can create regression tables for PyFixest, statsmodels, linearmodels, and save them as html, latex, or word. github: github.com/py-econometr... docs: py-econometrics.github.io/maketables/

My coauthors and I have been lucky to work with Brian & his team as part of their first round of research proposals (more on that someday 👀). Their data is truly unmatched. If you have research ideas that could leverage their extremely rich course-taking records, apply to the RFP below!

📣 New NBER Working Paper out today 📣 "The Consequences of Faculty Sexual Misconduct" Sarah Cohodes & Katherine Leu

Jason Faberman and I presented "everything you ever wanted to know about firm and worker dynamics" at a conference in honor of the great John Haltiwanger. Slides here: rdeckernet.github.io/website/deck...

"Supply disruptions shapes the global internet backbone: new paper shows diversification drives cable entry & surplus, but markets may underprovide diversity." New Paper by Hadi & Steck: www.restud.com/diversificat... #Econsky #REStud

Dropping a beta version of this page while everyone is up and processing baseball! This tool lets you search the full text of papers from the American Economic Review, American Economic Journal series, and over 30,000 NBER working papers. paulgp.com/econlit-pipe...

This was a fun and very informative event, at least for me. You can watch it in its entirety here: www.youtube.com/watch?v=7G-F... My presentation starts at around minute 13. Thanks again to the organizers for the kind invitation!

Who pays for tariffs? It’s a simple question that’s surprisingly tough to answer. We often see only a rough aggregate measure of prices at the border or the retail price, missing many steps in the chain. We tackle this in a new paper w Aaron Flaaen, Ali Hortacsu, Felix Tintelnot and Daniel Xu

In 1921 Thomas Edison created an employment test that absolutely captivated America - 146 questions that he asked potential hires. Einstein famously failed it. I used AI to turn it into an annotated multiple choice test. Try it (though it is very 1921): prismatic-dolphin-ba5e42.netlify.app

Attention IO job market candidates: Sometimes speakers in the CMA's external economics seminar series have to cancel at relatively short notice. We would love for these slots to go to JMCs to present their job market paper. Drop me a message if you are interested or share with those who might be.

Thrilled to see our decade-long research agenda with Teresa Fort and Felix Tintelnot on firm-level approaches to global value chains featured in the latest NBER Reporter. What a ride! Link: www.nber.org/reporter/202...

Check out the latest edition of my @financialtimes.com newsletter. (1/2) Welcome to Schrödinger’s economy, where the US looks both resilient and fragile, Trump’s policy agenda appears at once disruptive and oddly inconsequential, and markets feel euphoric yet uneasy: on.ft.com/4n0nO4a

We just spent 6 months to add 1 figure to this paper. Some people said, "Couples aren't prioritizing men's careers. Men just have better earnings opportunities when moving." Earnings effects of moves for couples on the left, singles on the right. Negligible gap between single men and women.

Happy Mean Girls Day to all who celebrate!

Eeee the cover for the UK edition of How to Win a Trade War is out! Pre-order your copy here... www.amazon.co.uk/How-Win-Trad...

Two of our finest thinkers and communicators on economic policy, @soumayakeynes.ft.com and @chadpbown.com, have done us a favor by writing this—>

After a decade of our family's involvement with Cambridge's public school system, the district is starting to take seriously the task of providing challenge to students who have mastered grade-level curricula. I wish this had happened earlier but kudos to those who've helped make this shift happen!

F > D > Everything else

How to make sure you ran reproduce all steps of your research months later? We demoed our CLI tool bead.zip that saves code and data together at RSECon at Warwick. Slides bead.zip/rsecon25

With E[P] you can run jobs locally using your own API keys for LLMs, or use our key which comes with $25 in credits. Toggle on "help me" and we'll dig into any issues with your surveys and experiments and help you fix them!

Something that may be fun. You can now listen to 5 minute chapter summaries (podcast style) for each chapter in Entrepreneurship: Choice and Strategy. redcircle.com/shows/c6f26a...

To borrow another example, taken from the `dbreg` README: github.com/grantmcdermo... Here I am running a fixed-effects regression on 180 million(!) row parquet dataset... and it completes **< 2 seconds**... on my laptop 🤯 This is powered by @duckdb.org under the hood. #rstats #econsky

Nice post by @jamesbrandecon.bsky.social on the scaling benefits that come from offloading your big regression jobs to a database. jamesbrandecon.github.io/blog/posts_h... (Showcasing some new-ish 📦 s that he, @apoorvalal.com & myself have been working on, but haven't really advertised yet.)

"Favour is better than Labour - Philosopher Odionarius Ighalotus 2000 BC". Copied from a friend.

If you're trying to figure out what's happening with tariffs, we're tracking it all with our regularly-updated timeline. Keep it bookmarked! 👇 https://www.piie.com/blogs/realtime-economics/2025/trumps-trade-war-timeline-20-date-guide

I've stumbled upon an odd data resource. The FCC "Mapping Broadband Health in America" tool purports to be about mapping broadband internet access, but actually is the easiest source I've ever found for linking state-level averages across a zillion different topics c2h.fcc.gov/broadband-he...

I've been working on a new tool, Refine, to make scholars more productive. If you're interested in being among the very first to try the beta, please read on. Refine leverages the best current AI models to draw your attention to potential errors and clarity issues in research paper drafts. 1/

New paper! RCT on subsidies for fixed market-access costs in Tunisia. Big effects on exports (for existing destinations/products) but not # of destinations/products, in contrast to policy goals and some workhorse trade models. w/ Nadia Ali, Giacomo De Giorgi, Aminur Rahman www.nber.org/papers/w33985

𝐏𝐲𝐅𝐢𝐱𝐞𝐬𝐭 0.30.1 is on 𝐏𝐲𝐏𝐢 and I am extremely happy with this release, mostly because of two 𝐧𝐞𝐰 𝐟𝐞𝐚𝐭𝐮𝐫𝐞𝐬: a Rust back end for all performance critical parts and quantile regression.

I feel seen

I’m looking forward to speaking at the upcoming “International Trade and Industrial Policy in a Changing World” conference! Check out the exciting program and register here: www.banque-france.fr/en/events/in...

Political scientists! APSA @epovb.bsky.social‬ is now on bsky. Drop us a follow! And help us circulate this call for proposals to junior scholars?

Tariff de-escalation begins! The US and China have agreed to lower duties on each others' goods for 90 days. In last week’s episode of Bloomberg’s Asia Centric podcast, I unpacked some of the issues now in play: from tariff evasion by rerouting to implications for U.S. small businesses #econsky

Thrilled that our AI & African Firm Productivity project is a 2025 Motsepe Foundation Research awardee! With Asim Khwaja, Abdoulaye Ndiaye, Gilles Hacheme, Chukwuka Onyekwena, and Nouréini Sayouti, we’ll explore how African firms can boost productivity with AI #econsky

This study finds rerouting to avoid #tariffs increased significantly due to the tariffs in the case Vietnam following the 2018 U.S.-China trade war but were lower than many market analysts and journalists initially thought 👉 citp.ac.uk/publications... @ebehi.org

Excited to present my research in the upcoming Spillover Conference at the European Central Bank! Check out the fantastic program and register to join online: www.ecb.europa.eu/press/confer...

Congratulations to Stefanie Stantcheva (@s-stantcheva.bsky.social) of @harvard.edu, winner of the 2025 John Bates Clark Medal! #econsky www.aeaweb.org/about-aea/ho...

This is the paper to read right now: 👇 "Exports in Disguise? Trade Rerouting During the U.S.-China Trade War" Ebehi Iyoha, Edmund Malesky, Jaya Wen and Sung-Ju Wu www.hbs.edu/faculty/Page... With the trade war in full swing, rerouting of Chinese export can be massive

Citing @ebehi.org's fascinating paper on trade rerouting. May also be of interest to @toddntucker.bsky.social re: state capacity challenges

By imposing uneven tariffs across the globe, Trump has created new opportunities for evasion arbitrage. The U.S. can't enforce this regime alone, and it is alienating allies in a position to help. Smugglers rejoice! #polisky #econsky #lawsky #tariffs mileskellerman.substack.com/p/the-new-ma...

There are 32m small businesses in the USA

Tariffs don't just matter for large companies, they affect small businesses too. Our a new working paper hopes to shed light on the impact of these tariffs on thousands of small businesses in the US and Canada. www.library.hbs.edu/working-know...