Alex Mas
744 posts
Alex Mas
@AMLabEcon
Professor at UC Berkeley. Labor economics.
Katılım Mayıs 2021
513 Takip Edilen4.7K Takipçiler
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My paper "Work Hours Mismatch" with @MartaLachowska @raffaelesaggio and Steve Woodbury is now in print at Econometrica.
Econometrica@ecmaEditors
Econometrica Volume 94, Issue 3 (May 2026) is now online econometricsociety.org/publications/e…
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Alex Mas retweetledi
It becomes full circle for Haas graduate and former Cal QB Fernando Mendoza
The Raiders QB and No. 1 overall draft pick, who got his UC Berkeley undergrad degree at Haas, was finally able to walk at today's commencement at the Greek Theater
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Alex Mas retweetledi
For 45 years, Berkeley built virtually no new housing. By the mid-2010s, it was the most expensive college town in America. Shortly thereafter, YIMBYs took over and kicked off a building boom. Today, nominal rents are below 2018 rates—remarkable progress on affordability.
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New paper of mine. If you ever wonder why someone is paying you to scroll on X at work, read on!
NBER@nberpubs
Firms hiring under demand uncertainty face a tradeoff between holding permanent workers as a buffer and hiring from a spot market that thickens with use, from @AMLabEcon nber.org/papers/w35148
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@omzidar @Princeton @Harvard @thecrimson Vendor liability insurance requirements for seminars are just over the horizon.
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@omzidar @Princeton @Harvard @thecrimson You haven't truly experienced bad until you have been asked to obtain a IRS certificate of tax residency to process the reimbursement.
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It's ridiculous that I have to sign up to be a supplier of Harvard university to get some train tickets reimbursed. I think I've entered my address and info about 8 times at this point in the "supplier portal" and have had to do it multiple times. the cost of these bureaucratic processes are totally out of control.
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Alex Mas retweetledi
There is great excitement about the potential for AI to reshape science, but so far very little empirical evidence about how that is (or is not??) happening in real time. I'm excited to share a new working paper with @carolyn_sms about the impact of AlphaFold on science ->
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Now that authors have access to AI, referees should feel comfortable asking for much more new analysis in revisions
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Alex Mas retweetledi
Bear with me while I do something petty about pointing out academic priority in an area. If you don't care about this, skip 1/
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Alex Mas retweetledi
I agree with this take. Time for UC to reconsider the choice not to use SAT and ACT. Contributor: UC should go back to considering standardized tests in admissions - Los Angeles Times share.google/4gp886pHsOyecX…
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The UCs should bring back standardized testing.
Patrick Collison@patrickc
marginalrevolution.com/marginalrevolu… UCSD report: "At our campus, the picture is truly troubling. Between 2020 and 2025, the number of freshmen whose math placement exam results indicate they do not meet middle school[!] standards grew nearly thirtyfold, despite almost all of these students having taken beyond the minimum UCOP required math curriculum, and many with high grades."
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Alex Mas retweetledi
Excited to announce that with Emmanuel Saez we are making our working hours database publicly available. It covers hours worked in 160 countries, including long time series in 87 countries. Hope it can be useful for research and feedback welcome! 👇
🔗amory-gethin.fr/data.html
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Alex Mas retweetledi
Alex Mas retweetledi
What happens when online job applicants start using LLMs? It ain't good.
1. Pre-LLM, cover letter quality predicts your work quality, and a good cover gets you a job
2. LLMs wipe out the signal, and employer demand falls
3. Model suggests high ability workers lose the most
1/n
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Alex Mas retweetledi
Quel plaisir d'avoir pu interroger Philippe sur sa trajectoire intellectuelle pour les pages du @Grand_Continent: un entretien-fleuve à lire!
legrandcontinent.eu/fr/2025/11/02/…
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