Best of #econtwitter - Week of September 21, 2025: paper summaries

Welcome readers old and new to this week’s edition of the Best of Econtwitter newsletter. Please submit suggestions — very much including your own work! — over email or on Twitter @just_economics.

Idiosyncratic favorites

^amazing charts/data

^good charts/data

^👀

AI economics

^long thread of many papers

^the authors themselves alas did not thread the paper but David Deming did an excellent summary on his substack (1, 2)

More paper summaries

^sounds like a denominator issue