Jeffrey Wooldridge
@jmwooldridge.bsky.social
Econometrics professor and author. Dogs = 2, cats >= 10.
Reposted by Jeffrey Wooldridge
Hi! I’m Mary and I’m on the #EconJobMarket this year.
Extreme heat doesn’t just affect students, it affects the people teaching them.
JMP 🧵:
Extreme heat doesn’t just affect students, it affects the people teaching them.
JMP 🧵:
November 14, 2025 at 11:04 PM
Hi! I’m Mary and I’m on the #EconJobMarket this year.
Extreme heat doesn’t just affect students, it affects the people teaching them.
JMP 🧵:
Extreme heat doesn’t just affect students, it affects the people teaching them.
JMP 🧵:
I was in New Orleans recently at a conference and I tried to reach out to Big Freedia. Apparently, we're not as tight as I thought. 😬
Met Big Freedia and entourage on an elevator in NOLA.
November 16, 2025 at 7:28 PM
I was in New Orleans recently at a conference and I tried to reach out to Big Freedia. Apparently, we're not as tight as I thought. 😬
The times are not currently listed on the website: 10 am to 4 pm EST on both days. After each 90 minute lecture, a 30 minute Q&A.
Hope to see you then!
Hope to see you then!
The next online installment of ESTIMATE: The Reduced Form is coming on Dec 11-12. I've continued to unify and expand regression-based methods to apply to exit, non-binary treatments, DDD, discrete outcomes, and more.
All proceeds to the MSU economics PhD program.
econ.msu.edu/academics/es...
All proceeds to the MSU economics PhD program.
econ.msu.edu/academics/es...
Estimate Reduced Form | Economics | Michigan State University
econ.msu.edu
November 16, 2025 at 7:26 PM
The times are not currently listed on the website: 10 am to 4 pm EST on both days. After each 90 minute lecture, a 30 minute Q&A.
Hope to see you then!
Hope to see you then!
The next online installment of ESTIMATE: The Reduced Form is coming on Dec 11-12. I've continued to unify and expand regression-based methods to apply to exit, non-binary treatments, DDD, discrete outcomes, and more.
All proceeds to the MSU economics PhD program.
econ.msu.edu/academics/es...
All proceeds to the MSU economics PhD program.
econ.msu.edu/academics/es...
Estimate Reduced Form | Economics | Michigan State University
econ.msu.edu
November 16, 2025 at 3:43 PM
The next online installment of ESTIMATE: The Reduced Form is coming on Dec 11-12. I've continued to unify and expand regression-based methods to apply to exit, non-binary treatments, DDD, discrete outcomes, and more.
All proceeds to the MSU economics PhD program.
econ.msu.edu/academics/es...
All proceeds to the MSU economics PhD program.
econ.msu.edu/academics/es...
Reposted by Jeffrey Wooldridge
🚨 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...
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
🚨 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...
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...
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.
This new CESifo working paper on covariate balancing looks very interesting. @jmwooldridge.bsky.social
Link: www.ifo.de/DocDL/cesifo...
Link: www.ifo.de/DocDL/cesifo...
September 23, 2025 at 6:45 PM
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.
Reposted by Jeffrey Wooldridge
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
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
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
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
Reposted by Jeffrey Wooldridge
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().
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](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:v5yhsvcygebhudec4rhb35wx/bafkreihi2xmgx3rse6inv2nh3pe74s7d5ir4ypwnlgchqcnpo7muv7cq3y@jpeg)
July 5, 2025 at 8:39 PM
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().
There's also now betwfe(), which implements a bridge-penalized (includes lasso and ridge regression) version of etwfe().
Reposted by Jeffrey Wooldridge
🚨 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
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
🚨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
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
July 4, 2025 at 9:28 AM
🚨 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
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
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
It’s a real pleasure teaching a course with @pedrosantanna.bsky.social. Many are calling us “Fire and Ice.”
Reposted by Jeffrey Wooldridge
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%
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
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%
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%
Met Big Freedia and entourage on an elevator in NOLA.
June 14, 2025 at 11:58 AM
Met Big Freedia and entourage on an elevator in NOLA.
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
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
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.
Reposted by Jeffrey Wooldridge
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
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 3:23 PM
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...
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
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...
Still planning on the Saturday evening soccer match ....
econ.msu.edu/academics/es...
Expected to tune into the Tigers’ game. Got the mesmerizing Dutch Darts Championship instead.
May 25, 2025 at 5:26 PM
Expected to tune into the Tigers’ game. Got the mesmerizing Dutch Darts Championship instead.
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
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.
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...
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
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...
timberlake.co/uk/cambridge...
Reposted by Jeffrey Wooldridge
Thanks very much to Anil Pratinav for this generous review of my new book in The Guardian.
www.theguardian.com/books/2025/m...
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
Thanks very much to Anil Pratinav for this generous review of my new book in The Guardian.
www.theguardian.com/books/2025/m...
www.theguardian.com/books/2025/m...
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.
In May's Environmental and Resource Economics: A new theory of and investigation into procedural (in)variance in stated preference by Hanemann, Krosnick, Wichgers, Wooldridge, Lampron, Schneider, Shaeffer, Tompson & Visser #EconSky @jmwooldridge.bsky.social #EAERE
Ben Franklin’s Whistle, Cost Expectations, and the Choice of Valuation Format - Environmental and Resource Economics
Contingent valuation surveys have used a variety of formats for the valuation question, including open-ended (OE) and single-bounded closed-ended (CE) elicitation. The OE format assesses maximum WTP…
buff.ly
May 13, 2025 at 7:57 PM
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.
Reposted by Jeffrey Wooldridge
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...
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
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...
miamioh.edu/fsb/news-eve...