My dad is an economist. On the highway he will never change lanes no matter how much faster the other lane is moving, insisting that the drivers in front of him have already exploited any possible speed arbitrage opportunities.

Apparently, only 16% of people check Uber and Lyft. I'm very surprised! Every time I do, I'm shocked by the amount of price dispersion..

🚀I am on the #EconJobMarket! My JMP asks a classic question: Do large, dominant firms foster or hinder innovation? To study this, I turn to the Great Merger Wave (1895–1904), when >2,600 U.S. firms combined into corporate giants like U.S. Steel and DuPont. A JMP 🧵👇 (1/13)

My student David Almog (@davidalmog25) is on the job market. His JMP identifies important barrier to AI adoption: Image concerns. In a clever field study, workers are less likely to adopt/follow *useful* AI recs if they know AI reliance will known to managers (links in reply).

We are excited to release a public, research-ready dataset with complete holdings at the security level for U.S. mutual funds and ETFs each quarter, built from SEC Form N-PORT mutual fund filings. 👉 Access the data and code at the GCAP Data Hub: https://t.co/YzOyhwoPmE 1/3

A math professor noticed his kitchen sink at home was leaking. He called a plumber. The plumber came the next day, tightened a couple of nuts, and the sink worked perfectly again. The professor was delighted. But when, a minute later, the plumber handed him the bill, he was

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! 👇 🔗 https://t.co/Ttn2yuzIih

Econ seminar culture is built on the assumption that the audience knows something that the speaker doesn't, and that the speaker values that information. A very important thing the audience knows and the speaker doesn't: Is the speaker making any sense at all? If nobody has any

"Causation does not imply variation." A lovely saying coined by Tyler Muir with applications to price pressure in stocks and the causality revolution in applied micro. Just because x causes y does not mean most variation in y is caused by x. https://t.co/8CIpeREBth

It's job market season for PhD economists, and my inbox is filling up with requests for advice. Given the tight PhD job market this year, I understand why people are seeking guidance wherever they can find it. But let's be honest: I'm probably the last person you should ask. My

Hi #EconTwitter, I am on the academic job market this year! My JMP studies how temporary sectoral shocks affect human capital accumulation and introduces a structural model to quantify their long-term general equilibrium effects. Full draft: https://t.co/lIf0fu3jh6 1/n

The ultimate solution to procrastination... it's incredibly simple, but too uncomfortable for most people to actually do.

new paper finds rising housing costs to be a major causal driver of declining fertility. Benjamin Couillard finds higher rents lead to 11 percent fewer US births (~13 million kids) since 1990. That's just over half of the decline in total fertility rate in that time period

A Harvard student told me something I can't stop thinking about. When they go to the library, every single screen has ChatGPT open. Homework that used to take hours now takes minutes. But then they talk to alums who say entry-level roles are basically gone. The jobs they

Hi all, please spread the word and we hope everyone can make good use of this new data drop: https://t.co/1DSR2NZ38p The full surviving establishment-level Census of Manufactures manuscripts from 1850, 1860, 1870, and 1880!

I enjoy this week's class in my PhD course because it's important and I'm still figuring things out. https://t.co/kd8L1ZvWll

Trade JMCs: Each year, I compile a list of international-trade job-market papers. To make sure you're on my list (& save me some work), please reply with your info in the following format: Firstname Surname (School) - JMP title - homepageURL [Spatial JMCs: reply to other tweet]

I'm making a database of every 2025-2026 econ PhD job market candidate: https://t.co/uCCWVtsnEJ - 18 institutions and 307 candidates so far - Filter by institution/field/advisor - CVs, JMPs, links to candidate site Will be adding every finance/econ candidate over coming weeks!

Yes, partially! These estimates contains information about trend and dispersion, but not about the level of markups. Great to work on this with @DeRidderMaarten and @MorzentiG

The wage gap is literally just married men being ahead of everyone else Single men and women earn roughly the same income