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There are now papers showing that the migration of academic communities from Twitter to other social media sites mostly failed. But they never fully returned to Twitter either. I wonder if we will ever see so many different communities interacting in the same online space again.

Really interesting and policy-relevant paper!

I *never* want to download a text file containing a single bibtex entry. Just let me copy it.

In my inbox: My name is --- and I took your ECON 435 class last spring. I just want to let you know I passed the Series 66 on Monday and I am now a fully licensed broker!...I just wanted to thank you for such a a great class that has helped me beyond college. 😀😀😀

New JFE turnaround statistics. We are very fast.

OMG, UM is playing Oregon on Nov 2. I hate football, but I kinda want UO to win, given that I went to school there. I'm wearing UO merch that Friday and Saturday.

Glad you found the whole process efficient. All journals try to get high-quality papers like yours, but we also try to be fast and efficient!!

in the future everyone will be blocked by Taleb for minus fifteen minutes

This is such an interesting, thoughtful, and well done paper.

Since when did publish become regularly used as an intransitive verb? e.g., "the paper published well." What does that even mean? Papers don't publish themselves. I'm going to lose this one, just like I've already lost "codes" used to describe computer programs rather than code.

New Bond-Compustat/CRSP Link data update on Open Source Bond Asset Pricing (openbondassetpricing.com/bond-compustat…), courtesy of Chuck Fang Data updated with more hand-corrected stock-bond links (see README for details). If you need to join a corporate bond-level dataset to CRSP or

Please don’t let an AI put “delving into the interplay” into anything you write.

1/ Excited to share a thread about my JMP: The Impact of Institutional Investors on Homeownership and Neighborhood Access joshuacoven.github.io/assets/JoshuaC…

I hate Matlab. You take a gawdawful mess that uses repeat, permutedims, kron, ones, zeros, and who knows what else, and you ask an AI to translate it to Julia and you get a pretty little loop with broadcasting that is actually faster than this impossible to read vectorization.

Six years in the making... Mussa is the mother of all exchange rate puzzles, as it requires explaining empirical co-movements across exchange rate regimes, not just under floats, presenting the real challenge for any theory of exchange rates

1 Julia is great. @Quantecon is also great. 2 None of this "elder economist" stuff. I learned it a few years ago, and I'm probably a good 15 years older than you. If you are elder, I don't know what I am. :) :) :) :)

rodneywhitecenter.wharton.upenn.edu/2025-summer-sc… Luke Taylor, Stephen Terry, and I are doing it again. This will be the 5th structural summer school in finance. We do not just teach papers. We teach techniques, and then we have students work on a problem set. Please get your students to apply.

rodneywhitecenter.wharton.upenn.edu/2025-summer-sc… 12 more days to apply to our summer school in structural estimation! It's a hands-on course in which you learn how to do SMM and then work on a problem set with your classmates. Open to PhD students in finance, accounting, econ. And faculty.