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jmwooldridge.bsky.social
Jeffrey Wooldridge
@jmwooldridge.bsky.social
11K followers 200 following 290 posts
Econometrics professor and author. Dogs = 2, cats >= 10.
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Reposted by Jeffrey Wooldridge
vicbar.bsky.social
🚨 We are hiring! ‼️‼️

tenured track assistant or associate prof in economics at university of Melbourne @unimelb.bsky.social

welcome applications from all fields (but especially from econometrics)

econjobmarket.org/positions?sh...
EJM - Econ Job Market
econjobmarket.org
October 16, 2025 at 11:19 AM
jmwooldridge.bsky.social
Thanks Paul. It’s nice to have a paper that’s both elegant (if I may say so) and practically useful. The conclusion is that using a particular covariate balancing PS estimator — inverse probability tilting — renders IPW, AIPW, and IPWRA all numerically identical with a linear conditional mean.
p-hunermund.com Paul Hünermund @p-hunermund.com · Sep 23
This new CESifo working paper on covariate balancing looks very interesting. @jmwooldridge.bsky.social

Link: www.ifo.de/DocDL/cesifo...
September 23, 2025 at 6:45 PM
Reposted by Jeffrey Wooldridge
danielkuehnle.bsky.social
We finished days 2-3 of our #summerschool in #healtheconomics

Packed with insights from
@jmwooldridge.bsky.social on recent DiD methods
StefanieSchurer on policy applications
@erdaltekin.bsky.social on the publication process

Plus great presentations throughout💪

#econbluesky
August 14, 2025 at 8:02 AM
Reposted by Jeffrey Wooldridge
gregoryfaletto.com
First of all, I added an implementation of extended two-way fixed effects (@jmwooldridge.bsky.social 2021), etwfe(), with inputs and outputs aligned with fetwfe().

There's also now betwfe(), which implements a bridge-penalized (includes lasso and ridge regression) version of etwfe().
A screenshot of an R console showing code and output for an extended two-way fixed effects analysis. The code loads the `fetwfe` and `did` packages, loads the `mpdta` dataset, and transforms it into `pdata` with `attgtToFetwfeDf`, specifying outcome `lemp`, time variable `year`, unit identifier `countyreal`, treatment onset `first.treat`, and covariate `lpop`. Then it runs `etwfe(pdata, time_var="time_var", unit_var="unit_var", treatment="treatment", response="response", covs="lpop")`. Below is the “Extended Two-Way Fixed Effects Results”: * **Overall Average Treatment Effect (ATT):** – Estimate: –0.0452 – Std. Error: 0.0145 – 95 % CI: \[–0.0736, –0.0167] * **Cohort Average Treatment Effects (CATT):** | Cohort | Estimated TE | SE | 95 % CI low | 95 % CI high | | ------ | ------------ | ---------- | ----------- | ------------ | | 2004 | –0.08762696 | 0.03555885 | –0.15732102 | –0.01793290 | | 2006 | –0.02127833 | 0.02128938 | –0.06300475 | 0.02044809 | | 2007 | –0.04595453 | 0.01633327 | –0.07796715 | –0.01394190 | * **Model Details:** – Units (N): 500 – Time periods (T): 5 – Treated cohorts (R): 3 – Covariates (d): 1 – Features (p): 29
July 5, 2025 at 8:39 PM
Reposted by Jeffrey Wooldridge
danielkuehnle.bsky.social
🚨 One spot just opened up for our Summer School in Health Economics!

Top-notch lectures by
@jmwooldridge.bsky.social and Stefanie Schurer, presentations, and a great social program are waiting for you.

First come, first served – apply now!

#EconBluesky #economics @healtheconall.bsky.social
danielkuehnle.bsky.social Daniel Kuehnle @danielkuehnle.bsky.social · Mar 11
🚨Calling phd students and early post-docs 🚨

Join our 3rd summer school in #healtheconomics! 👨‍🎓👩‍🎓

When: Aug 11 - Aug 15, 2025
Where: CINCH Essen

Themes: causal policy analysis & economics of child development.

Lecturers: Jeff Wooldridge and Stefanie Schurer 💪🏻

@healtheconall.bsky.social
3rd CINCH-dggo Academy in Health Economics Themes: “Causal methods in policy analysis and economics of child development ” The summer school is jointly organised by CINCH, the national research centre for health economics at the University of Duisburg-Essen, and the dggö, the German Society for Health Economics. The summer school will bring together a group of junior and senior researchers to share a week of expert lectures, research presentations, and special sessions. Expert lectures will be given by Professor Jeff Wooldridge on causal policy analysis and on the economics of child development by Professor Stefanie Schurer. Special sessions include a “Meet the Editor” session with Erdal Tekin, editor-in-chief at the Journal of Policy Analysis and Management and Professor at American University, and sessions on academic publishing, the academic job market, and speed networking with senior researchers. Each day will conclude with an attractive social and cultural program. Target audience: PhD students and early career postdocs working on health economics and closely related topics. Only 21 students will be admitted. Seniors speakers for special sessions: Kamila Cygan-Rehm (Technical University Dresden), Julian Reif (University of Illinois), Hendrik Schmitz (University Paderborn), Miriam Wüst (University of Copenhagen), Galina Zudenkova (Technical University Dortmund). Best Paper Award: A prize of EUR 500 and publication in the CINCH working paper series will be awarded to the best paper of the workshop. Registration fees: EUR 500. Fees cover lunches and dinners, and the social program—conditional on attending the entire workshop. Application: We accept all submissions aligning with our core themes. To apply, send your CV and a full paper to cinch.academy@wiwinf.uni-due.de . We strongly encourage female students and students from disadvantaged backgrounds to apply. Submission deadline: 9 May 2025 Notification of Acceptance: 16 May, 2025
July 4, 2025 at 9:28 AM
jmwooldridge.bsky.social
It’s a real pleasure teaching a course with @pedrosantanna.bsky.social. Many are calling us “Fire and Ice.”
June 24, 2025 at 8:59 PM
Reposted by Jeffrey Wooldridge
crampell.bsky.social
To calculate CPI, BLS teams collect 90k price quotes every month covering 200 different item categories.
When data not available, BLS staff typically develop estimates for approximately 10% of cells in the CPI calculation. However, in May, share of data in the CPI that is estimated increased to 30%
CPI Data Quality Declining - Apollo Academy
To calculate CPI inflation, BLS teams collect about 90,000 price quotes every month covering 200 different item categories, and there...
www.apolloacademy.com
June 20, 2025 at 11:04 AM
jmwooldridge.bsky.social
Met Big Freedia and entourage on an elevator in NOLA.
June 14, 2025 at 11:58 AM
jmwooldridge.bsky.social
zoeconomy.bsky.social Zoë Plakias @zoeconomy.bsky.social · May 29
Student final presentations in my undergrad Benefit-Cost Analysis class began today. They have to describe + critique a BCA of their choice. They've been working on understanding + analyzing their BCAs all quarter. It brings me such joy to see their ideas come together + to see all they've learned!
June 3, 2025 at 4:13 AM
Reposted by Jeffrey Wooldridge
johncassidysays.bsky.social
Thanks so much to the organizers of @hayfestival.bsky.social, my super-sharp interlocutor @jennifernadel.bsky.social, and an enthusiastic audience for making my first appearance at the incomparable books jamboree in the Welsh countryside so enjoyable. Hope to be back someday.
May 31, 2025 at 5:49 PM
Reposted by Jeffrey Wooldridge
nber.org
Universal school masking reduced weekly COVID-19 deaths by 0.57 per 100k people. 50 percent of districts removed mask requirements by spring 2022 contributing to 9 percent of COVID deaths that year, from Guzman, Imberman, Filosa, Kilbride, and Malkus https://www.nber.org/papers/w33849
May 31, 2025 at 3:00 PM
jmwooldridge.bsky.social
Hugh to Pippin: My kingdom for your fish.

Happy #Caturday!
May 31, 2025 at 3:23 PM
jmwooldridge.bsky.social
Still time to sign up for ESTIMATE, which starts in less than two weeks. Those near East Lansing can attend in person! An online option also is available.

Still planning on the Saturday evening soccer match ....

econ.msu.edu/academics/es...
Estimate Original | Michigan State University
econ.msu.edu
May 28, 2025 at 2:25 AM
jmwooldridge.bsky.social
Expected to tune into the Tigers’ game. Got the mesmerizing Dutch Darts Championship instead.
May 25, 2025 at 5:26 PM
jmwooldridge.bsky.social
That feeling when the morning tea doesn’t taste quite right, and you get to the bottom of the cup to find a big, white globule.
May 25, 2025 at 11:49 AM
jmwooldridge.bsky.social
All of the orange and white beasts found a sunbeam on this #Caturday!
May 24, 2025 at 4:50 PM
jmwooldridge.bsky.social
Here's a link to sign up for a free webinar that I'm giving ahead of the Timberlake Summer School in Cambridge:

timberlake.co/uk/cambridge...
2025 Econometrics Summer School Cambridge
Join Prof. Jeffrey Wooldridge and Dr Melvyn Weeks in Cambridge for 5-days of interactive learning
timberlake.co
May 23, 2025 at 2:09 PM
Reposted by Jeffrey Wooldridge
johncassidysays.bsky.social
Thanks very much to Anil Pratinav for this generous review of my new book in The Guardian.

www.theguardian.com/books/2025/m...
Capitalism and Its Critics by John Cassidy review – brilliant primer on leftwing economics
From Marx to Piketty, a sprawling but marvellously lucid overview of capitalism’s naysayers
www.theguardian.com
May 21, 2025 at 6:17 PM
jmwooldridge.bsky.social
The method of Poisson regression for estimating lower bound WTP appears in this paper. It dates back to a 2016 report valuing damages from the Deep Water Horizon oil spill. The exponential mean allows covariates, ensures positive predictions, and leads to a logically consistent WTP estimate.
May 13, 2025 at 7:57 PM
Reposted by Jeffrey Wooldridge
miamiecon.bsky.social
Congratulations to all for their Faculty awards, but special congratulations to our own Riley Acton (@riacton.bsky.social) for being this year’s recipient of the James Robeson Junior Faculty Award for Research Excellence.

miamioh.edu/fsb/news-eve...
Farmer School of Business 2025 faculty award winners announced
10 faculty members receive awards for research, teaching, and service
miamioh.edu
May 13, 2025 at 2:50 PM
Reposted by Jeffrey Wooldridge
johncassidysays.bsky.social
I enjoyed the conversation very much. Thanks to all at @thebrianlehrershow.bsky.social for inviting me on.
May 13, 2025 at 2:57 AM
Reposted by Jeffrey Wooldridge
zetaof1.bsky.social
She updated another one, which is my absolute favourite of hers. The attention to detail is just magnificient. If ever you've wondered what a Halloween (or χ²lloween) party among econometricians would look like, this would be it... Notice the level of detail in the background
May 8, 2025 at 7:50 PM
jmwooldridge.bsky.social
Workshop alert! We are trying to figure out if enough people will attend ESTIMATE, either in person in beautiful East Lansing, or remotely, in order to make it worth running. It's a fun three days! Rumor has it that this is how one gets a beta hat.

econ.msu.edu/academics/es...
ÊSTIMATE | Michigan State University
Department of Economics
econ.msu.edu
May 8, 2025 at 6:05 PM
Reposted by Jeffrey Wooldridge
bencasselman.bsky.social
Evidence of Trump's impact is everywhere — except, for the most part, in economic data itself. So forecasters are scouring earnings calls, sifting through obscure indicators and collecting anecdotes to try to suss out where the economy is headed. #EconSky
www.nytimes.com/2025/05/07/b...
Recession Warnings Are Everywhere, Except in the Data
www.nytimes.com
May 7, 2025 at 4:50 PM