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A meta-study of 54 studies and 170,000+ people found that: People remember more information if they read a physical book instead of a digital one. The paper advantage holds across ages and has grown over time. Looks like paper beats pixel.

Training on wrong answers outpaces training on correct ones. 10 times more learning emerges from plausible errors than from truths. Large language models refine their accuracy slowly when they learn only from correct examples. This paper introduces Likra, which trains one

#Zimbabwe will ban the export of #lithium concentrates from 2027, extending the push for more local processing. Africa’s top producer of lithium, banned the export of lithium ore in 2022 and has been pushing miners to process more domestically. mining.com/web/zimbabwe-t…

Instrumental Variable is here my folks

A small research note: The Gulf countries emerge to be a big player that if you want to understand modern growth in Africa. However, the issue is that we knew little how the gulf countries grew (except oh they have oil) in the first hand.

Reading about gold in Japan today. Japan became a major gold producer in the early 20th century but only because of colonial expansion. Over 50% of gold output came from outside Japan.

Forthcoming in AER: Insights: "Rational Inattention during an RCT" by Bartosz Maćkowiak and Mirko Wiederholt. aeaweb.org/articles?id=10…

#China will negotiate and sign a new economic pact with #Africa that will get rid of all tariffs on the 53 African states it has diplomatic ties with. reuters.com/world/africa/c…

A follow-up study on Apple's "Illusion of Thinking" Paper is published now. Shows the same models succeed once the format lets them give compressed answers, proving the earlier collapse was a measurement artifact. Token limits, not logic, froze the models. Collapse vanished

Can we construct a global panel data to track different civilizations' understanding of π---how close to approximate it 3.15159?

I have a predoc opening! This position will involve working with historical U.S. local newspaper data to understand Americans' varied perspectives on key issues across a century. Applicants can upload materials here (the listing describes a different project - sorry, I was

More to come too…

被捲倒了

Any good social science works on Tibet?

It's interesting to see that Newton spent much more time to work on alchemy than physics, trying to figure out the possibility of The Philosopher's Stone. The boundary b.w. science and occult studies was (and potentially has been) a blur..

New WP: "The Cost of Capital and Misallocation in the United State", with Julian Kozlowski and Jeremy Majerovitz 1/n

Very creative paper

Presenting a broad set of stylized facts about developing country labor markets, synthesizing the recent literature, and highlighting promising directions for future work, from Emily Breza and Supreet Kaur nber.org/papers/w33908

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