Arpit Gupta

arpitrage.bsky.social

22 March 2026 02:39

My solution to the @paulgp.com AI diff in diff slop challenge is to develop economic world models based on transformers which simulate households, firms, and governments; so policy evaluation requires spinning up some counterfactuals and simulations paulgp.substack.com/p/ai-one-sho...

Guido Imbens

imbens.bsky.social

22 March 2026 02:38

Don’t Do Difference In Differences (DDDID), cheers, guido

Steve Cicala

stevecicala.bsky.social

08 March 2026 05:39

Dealers: “We provide an invaluable service the manufacturer can’t replicate…And that’s why we need laws preventing manufacturers from bypassing us.” It is under-appreciated how strong and malevolent a force car dealers are in US society. www.wsj.com/business/aut...

Matt Blackwell

mattblackwell.bsky.social

28 February 2026 20:22

LLMs will usher in a democratization of intellect. Now you too can have a junior (AI) scholar that you can blame for errors and fraud. Previously, only the top scholars had access to that kind of power.

Michael Clemens

mclem.org

23 February 2026 16:53

Deep breath. I'm honored and excited to join the faculty of America's oldest research university, Johns Hopkins. I'll start this summer as a full professor, one of the founding faculty at the brand-new School of Government and Policy. We're building something unique & important, even historic.