#Econsky My co-author and I have a new paper we are presenting at the AEA Meetings, papers.ssrn.com/sol3/papers..... In this paper we examine Difference-in-Differences (DiD) from a time series perspective and provide three main results.

Heading to Philadelphia for the #ASSA2026. Presenting research you think our readers would be interested in? Working on something you think I should know about? Reach out here or by any of the ways linked in my bio: www.nytimes.com/by/ben-casse... #EconSky

I'm John Fallon, a labor economist on the job market. My JMP uncovers something wild: when chiropractors got licensed in the early 1900s, medical boards responded by making it HARDER to become a doctor. Why would competition lead to stricter regulations? 🧵 john-fallon-econ.com (1/9)

What happens when you remove medical debt from credit reports? I'll be presenting on this topic at #ASSA2026 in Philly on Saturday at 10:15am (Loews Philadelphia Hotel, Commonwealth Hall D). DM me if you'd like to meet up.

Last chance to sign up for Econ PhD Chess tomorrow! We're sending arena invites today, please register by the form below ASAP if you want to be on our list or play on Sunday.

At this holiday season, we should remember people in Ukraine and their fight for freedom. I am proud to support @razomforukraine.org and the Kyiv School of Economics, which is helping to build a brighter future in Ukraine. foundation.kse.ua/en/

“learn from countries like Switzerland, where about two-thirds of young people go into vocational training after 11 years of compulsory schooling” economist.com/internationa...

AI has begun citing its own hallucinations. Reveals a related problem: many authors never bother checking, let alone reading, the papers they cite.

So Instacart showed different people different prices for eggs. Shocking? Before the outrage, ignore the Twitter press release. Look at what they actually found. Understand the facts and the economic theory to make sense of it www.economicforces.xyz/p/instacarts...

The anecdote about "true and non-trivial" ideas from social sciences leaves the impression that ideas other than comparative advantage are either trivial or untrue. Behold more basic ideas (from economics) that are true and non-trivial. #EconSky mytwocentsandcounting.substack.com/p/true-and-n...

One last (sobering) update on the #EconJobMarket before the winter holidays; data as of 2025-12-14. In terms of # of job listings on Job Openings for Economists (JOE), this is the worst job mkt in recent yrs for PhD Economists. # jobs down 20% from last yr, even 18.9% lower than during COVID (2020).

Last year, there were 11,000 abortions in Carbondale, IL, a city with 21,000 people www.nytimes.com/2025/12/07/u...

The brilliant Kate Ho has passed away. She was an amazing economist and a genuinely kind human being. Her work shaped how we think about healthcare markets and her generosity touched everyone lucky enough to know her. The profession and the world are poorer without her.

Update on JOE postings -- things are worse: paulgp.com/2025/12/10/q...

"Unless you are living in 19th century Japan, you are probably used to reading text horizontally. Therefore, when possible, you should keep text horizontal – it’s the way people are used to reading" Amen. This goes double for graphs in presentations.

This also makes referee responses shorter :)

Health insurance researchers, send us your stuff! If you have questions about this special issue, please feel free to reach out to me or Miranda.

The Chinese Academy of Sciences combines "all of America’s national labs, MIT and Caltech, the National Academy of Sciences, and the Office of Science and Technology Policy all into one organization" www.noahpinion.blog/p/china-has-...

This retracted Nature paper was the second most referenced climate paper in 2024

ASHEcon is seeking members to join the Scientific Review Committee in the peer review of abstracts submitted for consideration for the 2026 ASHEcon conference as the Hyatt Regency Minneapolis, MN. Abstract reviews will take place in Dec 2025 and Jan 2026 . Deadline Dec 10th.

"global warming induces mechanical trends in extreme temperature exposure that correlate strongly with a location’s baseline temperature. Substantial bias emerges if trends in the outcome variable also correlate with baseline temperature for any reason"

be WISE and submit your work at this conference! I was told it's fantastic. The organizing group is solid, the location fantastic, the potential for high quality discussion is over the top. The keynotes are hit or miss, but what can I say, you win some and you lose some ;)

University students who were provided with a free gym card (in a randomized experiment) exercised more and had a significant improvement in academic performance. The treated students were also less likely to drop out of classes www.journals.uchicago.edu/doi/full/10....

Latest job market news for rookie economists is not good

This is completely disgusting. Today, the CDC updated their vaccine safety page. It now says: “The claim "vaccines do not cause autism" is not an evidence-based claim because studies have not ruled out the possibility that infant vaccines cause autism”.

Always a good reminder, I still see this error quite often: "The difference between significant and not significant is not itself significant. If you want to carry out inference for a difference, you need to construct the standard error for that difference." www.econometrics.blog/post/overlap...

Our team at American Journal of Health Economics is looking for a social media editor! The position is compensated ($1000 per year) -- if you're interested, please apply using this Google form: docs.google.com/forms/d/e/1F...

#econtwitter #econsky: I'm again organizing sessions for Ashecon this upcoming June (in Minneapolis, in-person only) focused on IPV/VAW in low- and middle-income countries; for myself, particularly interested in a session around intersections between IPV and health outcomes

Calling all researchers working on the environment and health! 🌿🚑 #ASHEcon2026 will be in Minneapolis (June 7–10, 2026), and I’m helping organize the Environment & Health program. Looking forward to seeing your submissions (deadline is December 10)! 👉 www.ashecon.org/2026-minneap...

My group at the University of Illinois is hiring a tenure-track applied economist. We're especially interested in environmental/public reduced-form rookies with research that complements our group. Tell your students to apply! #EconSky www.aeaweb.org/joe/listing....

This is such a bizarre talking point; I've thankfully never had to use most of the types of insurance that I have for me and my family This is a good excuse to share my WSJ letter to the editor explaining that "not filing a claim doesn’t mean you didn’t need insurance" www.wsj.com/opinion/the-...

Our group at Illinois Gies College of Business is hiring! We are especially interested in public or environmental economists. Our group includes myself, @tderyugina.bsky.social, David Molitor, Nolan Miller, Jeff Brown, Riley League, and Mackenzie Alston. www.aeaweb.org/joe/listing....

We're hiring at UIC Econ! uic.csod.com/ux/ats/caree...

Look at the distribution of z-values from medical research!

Not sure anybody can top Ted, but if you want to check: clearsky.app

Life expectancy has increased at all ages

Good to see Bluesky implementing an algorithm—it’s much needed. Hopefully it works well

Dropping a beta version of this page while everyone is up and processing baseball! This tool lets you search the full text of papers from the American Economic Review, American Economic Journal series, and over 30,000 NBER working papers. paulgp.com/econlit-pipe...

“What makes a Harvard student a Harvard student is their engagement in extracurriculars” www.thecrimson.com/article/2025...

I'd love to help make BlueSky one of the places where young scholars introduce themselves and their work to the world. If you're a PhD student whose work at least partially focuses on economics of education or education policy, reply to this thread and I'll highlight your work.

NEW PRE-DOC POSITIONS: @arpitrage.bsky.social and I are hiring for two pre-docs, one to start ASAP and one to start next Fall, to help expand our work using LLMs to measure and study zoning codes in the US. Please apply here: apply.interfolio.com/176538

Bad idea for economics: our author ordering is usually alphabetical

📢🚨 #HERB2026 is on 🚨📢 Interested in health and risky behaviors? Submit your paper to this conference Davide, Paolo, and I have been organizing this conference for 4 years now, and every time I love it. Good people, good food, nice discussions. The papers are not too bad either 😜

Thought about scientific consensus recently? We have a new DP @i4replication.bsky.social that probes into the famous replication debate between Acemoglu, Johnson & Robinson (AJR) and Albouy - and how experts assess this debate. We find that they disagree. 1/8 www.econstor.eu/bitstream/10...

Wow

We're just now beginning to see the fallout of the administration's visa policies and rhetoric toward international students. Regardless of how bad it gets, it's 100% an own goal. www.reuters.com/world/us/few...

“In 2025, American diagnostic radiology residency programs offered a record 1,208 positions across all radiology specialties… In 2025, radiology was the second-highest-paid medical specialty in the country, with an average income of $520,000, over 48 percent higher than the average salary in 2015”

I tried this on a manuscript—I’m impressed! It flagged: - A missing variable in a first-order condition - An outdated manual calc (“drop from X to Y is not Z%”) - Inconsistent notation - Miscellaneous typos (“and and”, “+ +”) - Missing subscripts - Several unclear passages

Great opportunity. Great colleagues. (Note: Oct. 24 application deadline) www.aeaweb.org/joe/listing....

$2.4 trillion projected cost (over 6 years; as of April 2022) of Russian aggression is likely a lower bound. Professional forecasters underestimated to cost of RUS illegal annexation of #Crimea and partial occupation of the #Donbas in 2014 by a factor of 3 #UkrainianView