Aaron Schwartz
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aschwartz.bsky.social
Aaron Schwartz
@aschwartz.bsky.social
MD-PhD professing at the University of Pennsylvania. Health, economics, and health economics.
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🚨New Paper🚨 US doctors are paid very different amounts for treating different patients—even when providing identical services.

How much less are physicians paid for treating non-White patients?

In @jamahealthforum.com, we offer the 1st national estimates. (1/7)

jamanetwork.com/journals/jam...
Payments to Physician Practices and Incentives to Serve Different Racial and Ethnic Groups
This study measures disparities across patient racial and ethnic groups in per-visit payment to physician practices from health insurers and other sources, adjusted for visit content, geographic marke...
jamanetwork.com
Reposted by Aaron Schwartz
I am presenting this at the #ASSA meeting tomorrow -- 15 years after I first presented an earlier version at the same conference.

In between I've had a family and a whole career.

Play the "Top 5" game at your own risk, kids.
The first antibiotics reduced childhood pneumonia, boosting adult human capital and income. However, discriminatory institutions curtailed long-run gains from a healthy start, from Sonia R. Bhalotra, Damian Clarke, and Atheendar Venkataramani www.nber.org/papers/w34606
January 2, 2026 at 9:45 PM
I’m not attending the conference, but I am wowed that on-site registration is only $290. This is way cheaper than medical conference registration fees. And there is on-site child care!
#ASSA2026 @AEACSWEP/AEA Room for Nursing Mothers at the Marriott Philadelphia Downtown Room 301, third floor; KiddieCorp childcare also at the Marriott in Room 302 & 303
January 2, 2026 at 11:15 PM
Whoever invented ymca child watch deserves a Nobel prize (peace?)
January 2, 2026 at 4:06 PM
Reposted by Aaron Schwartz
Spent today finalizing reviews for a delayed study section and realized I've two-factor auth'd into eRA Commons 6 times today. Need Duo wrapped to tell me how much time I spend each year inputting 4 digit authentication codes sent to my phone.
December 30, 2025 at 1:38 AM
Reposted by Aaron Schwartz
Gabapentin has soared in popularity as an alternative to opioids, but research is finding that it isn’t as safe or effective as doctors have long thought. 🔗: on.wsj.com/3YkBhdo
December 29, 2025 at 10:26 PM
Reposted by Aaron Schwartz
Recently accepted by #QJE, “The Price of Housing in the United States, 1890–2006,” by Lyons (@ronanlyons), Shertzer (@econhist-allday), Gray (@econhistoryorbust), and Agorastos: doi.org/10.1093/qje/...
The Price of Housing in the United States, 1890–2006*
Abstract. We construct the first annual market rent and home sales price series for American cities over the 20th century using 2.7 million newspaper real
doi.org
October 16, 2025 at 5:58 PM
Me: “we get to light all the candles tonight. Exciting right?”

Kiddo: “why are you excited? That means Hanukkah is over!”
December 22, 2025 at 12:34 AM
In this new research letter, we show that the VA is spending nearly one fifth of its congressional appropriation on health care for Veterans with Medicare Advantage. (1/2)
Dual-enrolled veterans in #MedicareAdvantage account for growing #VA expenditures, underscoring potential policy challenges and implications for federal health system financing. ja.ma/4sekV3R
December 20, 2025 at 7:19 PM
Reposted by Aaron Schwartz
Some news: we're committing $175m to @GiveWell in 2026, growing our >$1B committed to date.

Based on GiveWell’s estimates, we think this funding has saved >100,000 lives so far. 🧵

coefficientgiving.org/research/al...
Allocating $175M to GiveWell’s Recommendations for 2026 | Coefficient Giving
This post lays out why we've chosen to renew our support for GiveWell’s recommendations; we think it's an outstanding resource and we’re proud to support the organizations it has identified.
coefficientgiving.org
December 18, 2025 at 7:57 PM
A ?final thread about our new study measuring financial incentives to treat different racial/ethnic groups.

Today’s topic: how this paper came about. I hope the details are helpful for early-career researchers. (1/n)

jamanetwork.com/journals/jam...
Payments to Physician Practices and Incentives to Serve Different Racial and Ethnic Groups
This study measures disparities across patient racial and ethnic groups in per-visit payment to physician practices from health insurers and other sources, adjusted for visit content, geographic marke...
jamanetwork.com
December 18, 2025 at 3:35 PM
PA farmland dressed in its December best. (I enjoy my train commute.)
December 18, 2025 at 1:43 PM
Love the holiday spirit on display year round at my fav coffee shop.
December 18, 2025 at 1:13 PM
Reposted by Aaron Schwartz
Grading and googling hallucinated citations, as one does nowadays, and now that LLMs have been around for a while, I've discovered new horrors: hallucinated journals are now appearing in Google Scholar with dozens of citations bc so many people are citing these fake things
December 15, 2025 at 8:41 PM
Reposted by Aaron Schwartz
lol this month’s issue of JCO appears to have been resected with positive margins
December 12, 2025 at 2:36 AM
Reposted by Aaron Schwartz
Thanks to the World Bank Development Impact Blog for highlighting my job market paper. Excited to see it featured!
In today's JMP blog, @jiaweilyu.bsky.social studies impact of affirmative action for men in China's civil service. Women outperform men in the entry exam, so quotas were introduced to balance gender. Fewer women were hired, quality declined, & tax collected fell. blogs.worldbank.org/en/impacteva...?
When gender quotas protect the powerful: Lessons from China’s civil service. Guest post by Jiawei Lyu
blogs.worldbank.org
December 11, 2025 at 4:14 PM
Okeke is producing such important studies.
December 11, 2025 at 3:53 PM
Ordeals are rarely efficient sorting mechanisms for distributing benefits.
December 11, 2025 at 1:40 PM
Every problem in the US can be thought of as a health care spending problem. Solving problems takes resources. Health care is where our resources are going.
110% what Zack Cooper says. Debating health insurance subsidies is looking in the wrong place. Monopoly power by hospitals and insurers is killing our economy, and literally, some of us.
www.nytimes.com/2025/12/10/o...
Opinion | $27,000 a Year for Health Insurance. How Can We Afford That?
www.nytimes.com
December 10, 2025 at 3:56 PM
Reposted by Aaron Schwartz
110% what Zack Cooper says. Debating health insurance subsidies is looking in the wrong place. Monopoly power by hospitals and insurers is killing our economy, and literally, some of us.
www.nytimes.com/2025/12/10/o...
Opinion | $27,000 a Year for Health Insurance. How Can We Afford That?
www.nytimes.com
December 10, 2025 at 3:50 PM
Reposted by Aaron Schwartz
Five years ago (Dec. 10, 2020) the NEJM published the results of the Pfizer mRNA Covid vaccine trial.

Science and evidence in the service of human well being.

www.nejm.org/doi/full/10....
December 10, 2025 at 1:20 PM
Reposted by Aaron Schwartz
Hi! I'm looking to hire a full-time programmer/data analyst with SQL experience to work with EHR data! Details here: uclahealth.avature.net/careers/JobD...
Statistician
Life-saving breakthroughs, innovative therapies, and next-generation technologies. Through vision, tenacity, and inspiration, UCLA Health’s world-class researchers are redefining human health and...
uclahealth.avature.net
December 9, 2025 at 5:48 PM
Reposted by Aaron Schwartz
Conservatives' confidence in the scientific community continues to crater.
December 9, 2025 at 3:33 PM
Reposted by Aaron Schwartz
🚨 Predoc Opportunity at Yale! 🚨

Care about research that changes policy?

My research team works within state government to advance evidence and learning for a smarter safety net!

And our predocs have excellent PhD placements. Apply here!

#EconSky #EconTwitter #Predoc #ResearchJobs #HealthPolicy
Economics of the Safety Net
tobin.yale.edu
December 8, 2025 at 8:45 PM