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Kathleen Mullen

@kathleenjmullen

Associate Professor and Petrone Chair in Economics at the University of Oregon focusing on labor/health economics with an emphasis on disability and retirement

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Latest posts by Kathleen Mullen @kathleenjmullen

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The Private Provision of Public Services: Evidence from Random Assignment in Medicaid (Forthcoming Article) - This paper examines the effects of privatizing social health insurance. We exploit a natural experiment in Medicaid, wherein nearly 100,000 enrollees were randomly assigned between a publicly-operated fee-for-service system and private managed care. Managed care reduced costs by 5.6% via cost-effective substitutions within prescription drugs and via lower prices for outpatient services. We present evidence that pharmacy utilization management was the key mechanism reducing overuse and encouraging substitution to lower-cost drugs without decreasing quality. In contrast, privatizing medical benefits led to only modest savings and was associated with decreased healthcare quality and consumer satisfaction.

Forthcoming in the AER: "The Private Provision of Public Services: Evidence from Random Assignment in Medicaid" by Danil Agafiev Macambira, Michael Geruso, Anthony Lollo, Chima D. Ndumele, and Jacob Wallace.

11.03.2026 08:56 πŸ‘ 3 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

Don’t have time to read our long technical paper on AR LEARNS teacher base salaries and retention? No worries, we now have a short non-technical blog post on it for you πŸ‘‡

oep.uark.edu/raising-the-...

11.03.2026 12:24 πŸ‘ 8 πŸ” 5 πŸ’¬ 0 πŸ“Œ 1
Accessibility score for: evalsp26_01-exam_answers
100% Accessibility score: 100 percent
arrow_drop_up
Perfect!

This PDF has a perfect accessibility score, although further improvements may still be possible. Keep up the good work!

Accessibility score for: evalsp26_01-exam_answers 100% Accessibility score: 100 percent arrow_drop_up Perfect! This PDF has a perfect accessibility score, although further improvements may still be possible. Keep up the good work!

If you use #QuartoPub for any PDF documents for teaching and you need to meet impending PDF accessibility rules, upgrade to v1.9, add format: typst: pdf-standard: ua-1 to the YAML front matter, and it'll work!

09.03.2026 18:26 πŸ‘ 117 πŸ” 29 πŸ’¬ 5 πŸ“Œ 6
Interactive resources

With the power of OJS and Quarto, I’ve created a few interactive websites to illustrate trickier statistical concepts when teaching. Check them out (and adapt and copy as much as you want!)

With links to three different websites (accessible at the main link in the post)

Interactive resources With the power of OJS and Quarto, I’ve created a few interactive websites to illustrate trickier statistical concepts when teaching. Check them out (and adapt and copy as much as you want!) With links to three different websites (accessible at the main link in the post)

Finally got around to adding fancy links to my different interactive teaching websites for showing things like p-hacking, p-value interpretations, and (still-in-draft-form) DAGs at www.andrewheiss.com/teaching/ #rstats #QuartoPub #statsky

06.03.2026 22:15 πŸ‘ 133 πŸ” 22 πŸ’¬ 1 πŸ“Œ 1
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PDF Accessibility and Standards – Quarto Quarto 1.9 brings PDF accessibility and standards support, building on new tagging features in LaTeX and Typst.

Given how my university is barreling toward compliance with this (without much plan on how it’ll be implemented), this is a welcome add.

05.03.2026 15:12 πŸ‘ 11 πŸ” 3 πŸ’¬ 0 πŸ“Œ 1
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Research Assistant (temporary position) The Institute for International Economic Studies (IIES) is seeking a full-time research assistant to support an active research agenda in applied microeconomics. The research assistant will work close

🚨 Job Alert 🚨

I'm hiring a full-time RA (6-months) @iies.su.se. Work with me and fantastic coauthors on labor + human capital projects using large administrative and experimental data.

πŸ“… Start: May 1 (flexible)
βŒ›οΈApply by: March 20

Apply here: su.varbi.com/en/what:job/...

03.03.2026 15:25 πŸ‘ 2 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0
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Mentoring Program on Aging and Health Economics Research

Are you a PhD Student curious about working in topics of health and aging? Do you feel like you may need extra support? I have a program for you!

A one-day mentoring workshop hosted by yours truly and Jetson Leder-Luis (BU) through @nber.org

www.nber.org/calls-papers...

23.02.2026 16:12 πŸ‘ 12 πŸ” 7 πŸ’¬ 0 πŸ“Œ 2

πŸ“’ Predoc Opportunity

I'm hiring a full-time predoc to work with me at UC Berkeley, supporting my research on labor economics, the economics of education, and public policy.

jesse-rothstein.com/rothstein_pr...

Please pass on to anyone who might be interested.

#econsky #econ_ra

16.02.2026 18:58 πŸ‘ 54 πŸ” 44 πŸ’¬ 1 πŸ“Œ 4

While it may explain some of the context, this framing also hides that women scientists didn't cozy up to epstein the way men did. They also need funding, no? This is also about being part of a powerful boys club where one can act in despicable ways with impunity. Misogyny is a huge driving factor.

01.02.2026 15:55 πŸ‘ 180 πŸ” 32 πŸ’¬ 7 πŸ“Œ 5

Anxiety owl… πŸ₯΄

28.01.2026 16:52 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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The annual call for @nber.org nominations has been released, so if you're a researcher hoping to become affiliated, reach out to existing affiliates to get nominated.

If you're an existing affiliate, advocate for talented researchers, particularly those with networks not already full of NBER folks.

21.01.2026 16:18 πŸ‘ 11 πŸ” 9 πŸ’¬ 1 πŸ“Œ 0
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My AEA mentoring program mentee is presenting right now in the @aeacsmgep.bsky.social dissertation session. If you are looking for candidate that looks at the intersection of international trade and education, then consider Jose Rojas. #ASSA2026

03.01.2026 16:11 πŸ‘ 7 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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Center for Effective Global Action Submission Manager

We're excited to share the application for the next Research Transparency and Reproducibility Training (RT2)! Join us May 19 - 21, 2026 in Berkeley for hands-on training in open science tools and methods.

Apply by Feb 8: cega.submittable.com/submit/34383...

15.12.2025 19:44 πŸ‘ 5 πŸ” 7 πŸ’¬ 1 πŸ“Œ 0
Will you incorporate LLMs and AI prompting into the course in the future?
No.

Why won’t you incorporate LLMs and AI prompting into the course?
These tools are useful for coding (see this for my personal take on this).

However, they’re only useful if you know what you’re doing first. If you skip the learning-the-process-of-writing-code step and just copy/paste output from ChatGPT, you will not learn. You cannot learn. You cannot improve. You will not understand the code.

Will you incorporate LLMs and AI prompting into the course in the future? No. Why won’t you incorporate LLMs and AI prompting into the course? These tools are useful for coding (see this for my personal take on this). However, they’re only useful if you know what you’re doing first. If you skip the learning-the-process-of-writing-code step and just copy/paste output from ChatGPT, you will not learn. You cannot learn. You cannot improve. You will not understand the code.

In that post, it warns that you cannot use it as a beginner:

…to use Databot effectively and safely, you still need the skills of a data scientist: background and domain knowledge, data analysis expertise, and coding ability.

There is no LLM-based shortcut to those skills. You cannot LLM your way into domain knowledge, data analysis expertise, or coding ability.

The only way to gain domain knowledge, data analysis expertise, and coding ability is to struggle. To get errors. To google those errors. To look over the documentation. To copy/paste your own code and adapt it for different purposes. To explore messy datasets. To struggle to clean those datasets. To spend an hour looking for a missing comma.

This isn’t a form of programming hazing, like β€œI had to walk to school uphill both ways in the snow and now you must too.” It’s the actual process of learning and growing and developing and improving. You’ve gotta struggle.

In that post, it warns that you cannot use it as a beginner: …to use Databot effectively and safely, you still need the skills of a data scientist: background and domain knowledge, data analysis expertise, and coding ability. There is no LLM-based shortcut to those skills. You cannot LLM your way into domain knowledge, data analysis expertise, or coding ability. The only way to gain domain knowledge, data analysis expertise, and coding ability is to struggle. To get errors. To google those errors. To look over the documentation. To copy/paste your own code and adapt it for different purposes. To explore messy datasets. To struggle to clean those datasets. To spend an hour looking for a missing comma. This isn’t a form of programming hazing, like β€œI had to walk to school uphill both ways in the snow and now you must too.” It’s the actual process of learning and growing and developing and improving. You’ve gotta struggle.

This Tumblr post puts it well (it’s about art specifically, but it applies to coding and data analysis too):

Contrary to popular belief the biggest beginner’s roadblock to art isn’t even technical skill it’s frustration tolerance, especially in the age of social media. It hurts and the frustration is endless but you must build the frustration tolerance equivalent to a roach’s capacity to survive a nuclear explosion. That’s how you build on the technical skill. Throw that β€œwon’t even start because I’m afraid it won’t be perfect” shit out the window. Just do it. Just start. Good luck. (The original post has disappeared, but here’s a reblog.)

It’s hard, but struggling is the only way to learn anything.

This Tumblr post puts it well (it’s about art specifically, but it applies to coding and data analysis too): Contrary to popular belief the biggest beginner’s roadblock to art isn’t even technical skill it’s frustration tolerance, especially in the age of social media. It hurts and the frustration is endless but you must build the frustration tolerance equivalent to a roach’s capacity to survive a nuclear explosion. That’s how you build on the technical skill. Throw that β€œwon’t even start because I’m afraid it won’t be perfect” shit out the window. Just do it. Just start. Good luck. (The original post has disappeared, but here’s a reblog.) It’s hard, but struggling is the only way to learn anything.

You might not enjoy code as much as Williams does (or I do), but there’s still value in maintaining codings skills as you improve and learn more. You don’t want your skills to atrophy.

As I discuss here, when I do use LLMs for coding-related tasks, I purposely throw as much friction into the process as possible:

To avoid falling into over-reliance on LLM-assisted code help, I add as much friction into my workflow as possible. I only use GitHub Copilot and Claude in the browser, not through the chat sidebar in Positron or Visual Studio Code. I treat the code it generates like random answers from StackOverflow or blog posts and generally rewrite it completely. I disable the inline LLM-based auto complete in text editors. For routine tasks like generating {roxygen2} documentation scaffolding for functions, I use the {chores} package, which requires a bunch of pointing and clicking to use.

Even though I use Positron, I purposely do not use either Positron Assistant or Databot. I have them disabled.

So in the end, for pedagogical reasons, I don’t foresee me incorporating LLMs into this class. I’m pedagogically opposed to it. I’m facing all sorts of external pressure to do it, but I’m resisting.

You’ve got to learn first.

You might not enjoy code as much as Williams does (or I do), but there’s still value in maintaining codings skills as you improve and learn more. You don’t want your skills to atrophy. As I discuss here, when I do use LLMs for coding-related tasks, I purposely throw as much friction into the process as possible: To avoid falling into over-reliance on LLM-assisted code help, I add as much friction into my workflow as possible. I only use GitHub Copilot and Claude in the browser, not through the chat sidebar in Positron or Visual Studio Code. I treat the code it generates like random answers from StackOverflow or blog posts and generally rewrite it completely. I disable the inline LLM-based auto complete in text editors. For routine tasks like generating {roxygen2} documentation scaffolding for functions, I use the {chores} package, which requires a bunch of pointing and clicking to use. Even though I use Positron, I purposely do not use either Positron Assistant or Databot. I have them disabled. So in the end, for pedagogical reasons, I don’t foresee me incorporating LLMs into this class. I’m pedagogically opposed to it. I’m facing all sorts of external pressure to do it, but I’m resisting. You’ve got to learn first.

Some closing thoughts for my students this semester on LLMs and learning #rstats datavizf25.classes.andrewheiss.com/news/2025-12...

09.12.2025 20:17 πŸ‘ 331 πŸ” 99 πŸ’¬ 14 πŸ“Œ 31

Fantastic opportunity for junior Econ profs!

08.12.2025 21:31 πŸ‘ 4 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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Why Does A.I. Write Like … That?

I haven't felt this seen in a while. Highly recommended!

www.nytimes.com/2025/12/03/m...

07.12.2025 16:27 πŸ‘ 13 πŸ” 9 πŸ’¬ 0 πŸ“Œ 1

This was such a great trilogy!

03.12.2025 22:20 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Apply - Interfolio {{$ctrl.$state.data.pageTitle}} - Apply - Interfolio

We're hiring an endowed chair in economic demography--please apply, or pass along to good candidates!

apply.interfolio.com/173456

01.12.2025 14:57 πŸ‘ 2 πŸ” 5 πŸ’¬ 0 πŸ“Œ 0

Less than one week left to apply!
We’re hiring an AP in Labor Economics at @iwh-halle.bsky.social & @uni-magdeburg.de β€” focus on tech & labor.

Why apply?
β€’ Strong empirical-micro community
β€’ Great data access
β€’ Opportunity to build own research agenda

πŸ“… Deadline: 26 Nov
πŸ”— tinyurl.com/yc3db283

21.11.2025 14:57 πŸ‘ 3 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
yale campus at dusk

yale campus at dusk

Come be my colleague! Yale School of Public Health has an open-rank search for Health Policy & Management. Focus areas are empirical research in health policy, healthcare management or health services research. You still have time! apply.interfolio.com/176891

17.11.2025 14:42 πŸ‘ 36 πŸ” 31 πŸ’¬ 0 πŸ“Œ 0

πŸ“’ 5 more days to apply to our AP position in Microeconomics!

15.11.2025 16:20 πŸ‘ 8 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0
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Want to live and work in this beautiful mountain valley in HawaiΚ»i? #econsky

The University of Hawaii Economic Research Organization (UHERO) is hiring for 2 TT positions:
-> Public Finance/Tax: aeaweb.org/joe/listing....
-> Macro/tourism/forecasting: aeaweb.org/joe/listing....

More below

1/5

15.11.2025 01:46 πŸ‘ 5 πŸ” 7 πŸ’¬ 1 πŸ“Œ 0
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Environmental and Resource Economics Postdoctoral Scholar (up to 3 positions), Environmental Markets Lab (emLab), University of California Santa Barbara University of California Santa Barbara is hiring. Apply now!

🌍 Are you in the market? Dream postdoc opportunity for environmental economists!
@envdefensefund.bsky.social + @ucsb.bsky.social's @emlab.ucsb.edu are hiring 2-3 postdocs to work on carbon markets, nature-based solutions & resource economics with Chris Costello (emLab Director/EDF Chief Economist).

13.11.2025 19:14 πŸ‘ 16 πŸ” 11 πŸ’¬ 0 πŸ“Œ 0
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IFS recruitment event 2025: Summer students | Institute for Fiscal Studies We're offering an opportunity to meet current IFS staff and find out more about our summer placement scheme for current university students.

🚨Economics students! People who know or teach economics students!🚨

The IFS offers summer internships each year. Many of our permanent staff started with one of these. On Monday we're holding an online event to provide more info. Please do come/share.

ifs.org.uk/events/ifs-r...

12.11.2025 14:31 πŸ‘ 3 πŸ” 8 πŸ’¬ 1 πŸ“Œ 1
American Economic Association: JOE Listings - August 1, 2025 - January 31, 2026

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....

11.11.2025 23:00 πŸ‘ 44 πŸ” 30 πŸ’¬ 1 πŸ“Œ 0

If anyone has a job market paper they would like me to repost, tag me and I will do my best to do so! Would love to follow what people are working on more closely.

10.11.2025 22:54 πŸ‘ 22 πŸ” 14 πŸ’¬ 0 πŸ“Œ 0
Assistant Professor of Economics The University of Maine is a community of more than 11,900 undergraduate and graduate students, and 2,500 employees located on the Orono campus, the regional campus in Machias, and throughout the stat...

The UMaine economics department is hiring an assistant professor with expertise in applied economics. fa-ewca-saasfaprod1.fa.ocs.oraclecloud.com/hcmUI/Candid...

#academicjobs #econjobs

11.11.2025 03:29 πŸ‘ 6 πŸ” 5 πŸ’¬ 0 πŸ“Œ 0
Casey McQuillan: Incomplete and Endogenous Take-Up of Unemployment Insurance. Areas: Labor Economics and Public Finance. Letter Writers: Ilyana Kuziemko (advisor), Dave Lee (advisor), Owen Zidar.

Casey McQuillan: Incomplete and Endogenous Take-Up of Unemployment Insurance. Areas: Labor Economics and Public Finance. Letter Writers: Ilyana Kuziemko (advisor), Dave Lee (advisor), Owen Zidar.

Casey McQuillan’s job market paper studies how unemployment insurance (UI) generosity affects take-up and optimal policy design. esd.wa.gov/media/pdf/42...

06.11.2025 22:12 πŸ‘ 5 πŸ” 4 πŸ’¬ 1 πŸ“Œ 2

Was everybody crying?

08.11.2025 03:51 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Photo shows the title page for an academic paper titled "Driving Inclusion: The Effect of Improved Transportation for People with Disabilities" by Melissa Gentry. 

The abstract is as follows: People with disabilities face substantial barriers to economic and social participation. I explore the extent to which these barriers are overcome by the availability of reliable and flexible transportation, which may serve as ``reliability insurance'' in case other modes of transit fail. Leveraging the roll-out of Uber, I use a stacked difference-in-differences approach to show that the availability of reliable and flexible transportation leads to improvements in social and economic participation through increased marriage rates and labor force participation, and reduced reliance on public assistance. The reduction in public assistance outweighs expected rideshare costs, lending support to the recent push towards public-private partnerships in the transportation space.

Photo shows the title page for an academic paper titled "Driving Inclusion: The Effect of Improved Transportation for People with Disabilities" by Melissa Gentry. The abstract is as follows: People with disabilities face substantial barriers to economic and social participation. I explore the extent to which these barriers are overcome by the availability of reliable and flexible transportation, which may serve as ``reliability insurance'' in case other modes of transit fail. Leveraging the roll-out of Uber, I use a stacked difference-in-differences approach to show that the availability of reliable and flexible transportation leads to improvements in social and economic participation through increased marriage rates and labor force participation, and reduced reliance on public assistance. The reduction in public assistance outweighs expected rideshare costs, lending support to the recent push towards public-private partnerships in the transportation space.

I am excited to announce I am on the #EconJobMarket this year! πŸŽ‰ My research explores economic barriers for people with disabilities at the intersection of labor, public, and health economics.

My #EconJMP examines how reliable transportation transforms outcomes for this population. 🧡1/6

07.11.2025 15:45 πŸ‘ 152 πŸ” 41 πŸ’¬ 3 πŸ“Œ 8