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We just released our paper using a field experiment to reveal indoor air pollution (IAP) in London: It’s worse than you think! 🧵with five main results👇 With Sefi Roth Columbia | SIPA LSE Geography & Environment Grantham LSE

Something you’d stare at for hours at your Gradparents house in a pre iPhone era

Forthcoming in AEJ: Macroeconomics: "GDP-B: Accounting for the Value of New and Free Goods" by Erik Brynjolfsson, Avinash Collis, W. Erwin Diewert, Felix Eggers, and Kevin J. Fox. aeaweb.org/articles?id=10…

The pineapple was once Europe’s ultimate status symbol. Kings built special heated greenhouses just to grow one. Étienne explains how steamships, refrigeration, and automation made it an everyday fruit.

This week, a math professor at MIT told me that incoming students are, on average, noticeably worse at math than they used to be. Harvard, of course, just added a remedial math class, Math MA5, "aimed at rectifying a lack of foundational algebra skills among students".

Time to work on the follow-up paper, “The Political Economy of Zero Thinking”

It’s probably the first time that trade economists have a true natural experiment to play with

Running bilateral trade surplus/deficits with different countries is the way it should be. Trying to eliminate each one is simply stupid. I have a trade deficit with my grocer, a trade surplus with my employer. I am not sure it would be a great idea for me to work for my grocer.

For those who still honor GE, the optimal macro import tariff is decreasing in the trade deficit:

Student: “could I please get a reference?” *5 months later Professor: “Sure, when do you need it by?”

Yesterday at the NYUAD BOS seminar, we hosted Matt Marx (Matt Marx), who presented a paper using matched Patent-Paper Pairs to explore whether—and how—the patent system promotes scientific progress.

Bek Khoshimov Thank you Bek! New friends, great food, and my first 1:1 with a camel...no rides today though as it was 116

Had a great time at the 19th Smith Entrepreneurship Research Conference at UMD!

Interested in when, how, and for whom AI advances research on strategy, innovation, and entrepreneurship? Join us in Copenhagen. This session is designed to engage with scholars who have been at the forefront of integrating AI into their research. connect.aom.org/tim/discussion…

I am often sitting in this park near NYU. In the early 1980s, my grandfather would sit on a bench in this park after we had lunch. I now sit on the same bench. The OLG model fits the data.

Among countless other things that make me happy about it, Poland did it without an "industrial policy". Just stable policy, modest but consistent growth, the craziness of our politicians restrained by the EU, and a broad-based economy - you can't point to one sector driving it

It's hard to avoid recalling this passage from the English historian Tony Judt:

LinkedIn is gonna melt when they hear about Soham Parekh next week