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John Graves

@johngraves

Professor of Health Policy and Medicine, Vanderbilt University School of Medicine Professor of Management, Vanderbilt University Owen Graduate School of Management

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23.09.2023
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Latest posts by John Graves @johngraves

Amitabh is a coauthor on arguably the best paper on high-deductible health insurance that we have (link to thread from a few months ago to follow)

26.02.2026 17:18 πŸ‘ 40 πŸ” 16 πŸ’¬ 2 πŸ“Œ 0
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I started making this R package 6 years ago. I finally have it in a state I'm happy with, thanks to Claude Code #Rstats github.com/MattCowgill/...

18.02.2026 11:48 πŸ‘ 189 πŸ” 39 πŸ’¬ 8 πŸ“Œ 7
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Come work with me! I'm hiring for a post-doc position with expertise in health economics, to work on projects about healthcare markets and organizational form. Apply at academicjobsonline.org/ajo/jobs/31702

18.02.2026 15:49 πŸ‘ 2 πŸ” 6 πŸ’¬ 0 πŸ“Œ 0

We would like to recruit a stellar junior faculty member in the Division of Child Health Research and Policy @deptpopmed.bsky.social at Harvard. Please circulate this announcement widely!

www.populationmedicine.org/divisions-ce...

06.02.2026 17:33 πŸ‘ 5 πŸ” 7 πŸ’¬ 0 πŸ“Œ 0

100% -- its the accumulation of micro-tasks and micro-asks.

05.02.2026 17:08 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

love this! I've taken a similar approach and a positive for me is the recognition that you often go deeper by going longer. the unconscious processing you allow yourself by not rushing to write really enriches thinking & the end product. the risk, though, is a fine line b/t this and procrastinating

21.01.2026 16:00 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Time Will Tell App - App Store Download Time Will Tell by Hadley Wickham on the App Store. See screenshots, ratings and reviews, user tips, and more games like Time Will Tell.

Thanks to claude code, I wrote my first iphone app:
apps.apple.com/us/app/time-...
It's what I have always wanted for a talk timer (as both a speaker and a chair). It's very minimal, designed to be read from across the room, and make it clear when you're running out of time.

14.01.2026 19:49 πŸ‘ 78 πŸ” 7 πŸ’¬ 6 πŸ“Œ 0

AEA has always been really good on this -- they really economize (no pun intended) on the cost of entry.

That said, it helps for cost minimization that most of the AEA meetings are held in January in places like Philly, Chicago, Boston, etc. :)

02.01.2026 23:51 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Mark Cuban Tells Us How He Can Fix America’s Shitty Health Care The entrepreneur wants to do what many in his position have tried and failed to accomplish.

Really enjoyed this candid ("Because I’m rich as fuck and I didn’t care about the money") conversation between @citizencohn.bsky.social and @mcuban.bsky.social

www.thebulwark.com/p/mark-cuban...

31.12.2025 17:05 πŸ‘ 18 πŸ” 5 πŸ’¬ 4 πŸ“Œ 0

The Yale crew is awesome and doing incredibly innovative things in the Medicaid and SNAP space.

If you're interested in health policy and a predoc, run, do not walk, to apply for this!

08.12.2025 20:48 πŸ‘ 32 πŸ” 16 πŸ’¬ 0 πŸ“Œ 0

Values are in $1,000s -- so there are some states like West Virginia where folks well over $200k would receive a subsidy because premiums are so high there. But in other areas, the "disattachment point" is $100k or less.

03.12.2025 20:18 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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ACA enhanced subsidies cap the maximum percent of income all Americans pay for non-group premiums at 8.5% income.

But that doesn't mean everyone gets a subsidy. What's the maximum income you could have and still get a tax credit?

The attached shows that max income for a single 57 year old in '26

03.12.2025 20:15 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Negotiating it as a straight subsidy would reduce the uncertainty around having to precisely predict your income--or else face potentially significant financial consequences at tax time.

The CBO projected that dynamic could depress enrollment in the marketplaces.

09.11.2025 16:51 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

This proposal would directly deposit the subsidy into HSAs -- and it's not clear how they'd be structured. Would it be a tax credit still subject to overpayment clawbacks? or a straight subsidy?

09.11.2025 16:50 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

H.R.1. eliminates these safe harbors--meaning that if you receive an advance credit that is $2,000 too high, your tax liability goes up by the full $2,000 overpayment.

09.11.2025 16:49 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

The original ACA put in place these safe harbors in case someone's projected income (i.e., what they think their income will be next year) doesn't match their actual income.

For incomes under 200% of FPL, repayment caps were around $325 for an individual or $650 for a family.

09.11.2025 16:47 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Republicans Pitch Alternative to ACA Extension to End Government Shutdown GOP senators have proposed sending money directly to consumers’ health accounts rather than to insurance companies.

This proposal is worth engaging for an under-appreciated reason....

H.R.1., passed this past summer, eliminates tax credit overpayment safe harbors for advance credits that end up too large relative to realized income the individual has during the coverage year

www.wsj.com/politics/pol...

09.11.2025 16:45 πŸ‘ 1 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0
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Development of an Atlas for US Pediatric Acute Care This cross-sectional study offers a national US atlas of pediatric acute care centers in the US.

@allanmjoseph.bsky.social has been telling me there needs to be a "Dartmouth Atlas, but for pediatrics" for maybe a literal decade? And now there is!

(h/t to coauthor @johngraves.bsky.social)

28.10.2025 15:01 πŸ‘ 18 πŸ” 8 πŸ’¬ 3 πŸ“Œ 2

The supplemental materials have a ZIP-to-PESA (Pediatric Emergency Service Area) and ZIP-to-PERR (Pediatric Emergency Referral Region) crosswalk, for those who are interested in using the Atlas!

28.10.2025 15:07 πŸ‘ 2 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

When is the point of no return for extending ACA tax credits?

They expire 12/31, so that’s a drop dead date.

Open enrollment starts November 1. If they’re not extended by then, enrollees may start dropping out. Even if open enrollment is extended, people could be hard to reach.

20.10.2025 17:33 πŸ‘ 121 πŸ” 64 πŸ’¬ 11 πŸ“Œ 1

ggplot + gganimate FTW.

and similar in 2015 -- but v different than 2010!

20.10.2025 14:53 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

yay! congrats stacie!

20.10.2025 14:45 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

As one might imagine given these age dynamics and the state's demographics, Florida is the top state where folks are most dependent on this coverage over their lifetimes.

So sharp changes in the affordability of plans due to expiring enhanced tax credits is going to be acutely felt there.

20.10.2025 14:40 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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At any given time, less than 10% of the non-Medicare-eligible population is covered with private plans in the marketplaces.

But there is a minor surge in so-called "non-group" coverage in early adulthood.

And then, as folks approach Medicare, non-group coverage really takes off.

20.10.2025 14:37 πŸ‘ 1 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0

What's at stake in the debate over enhanced subsidies?

The "average" American will spend about five years of their pre-Medicare lives in privately-purchased coverage.

But these are often short spells, where marketplace plans provide a critical "bridge" at key transitional moments in life.

20.10.2025 14:33 πŸ‘ 0 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0
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A new paper led by Harvard Health Policy PhD student Ye Shen finds that, in the current policy environment, more than six in ten kids will have been enrolled in Medicaid for some period of time by their 18th birthday; the program is absolutley critical for children.

jamanetwork.com/journals/jam...

24.09.2025 15:43 πŸ‘ 58 πŸ” 36 πŸ’¬ 3 πŸ“Œ 3
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Modeling the Budgetary Impacts of Sickle Cell Disease Gene Therapies on State Medicaid Programs - Journal of General Internal Medicine Journal of General Internal Medicine -

Excited to share new research led by Jessica Harvey exploring the budget impact of gene therapies for sickle cell disease, with a focus on Medicaid programs.

Co-As: @ankurfactorial.bsky.social, @leah-rand.bsky.social, @akesselheim.bsky.social, & George Goshua.

πŸ”—: link.springer.com/article/10.1...

23.09.2025 15:15 πŸ‘ 6 πŸ” 2 πŸ’¬ 2 πŸ“Œ 0
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Overall, we estimate that longer hospital stays for Medicare Advantage patients are contributing to close to 2 million extra hospital bed days occupied by people who don't need to be there any more annually. This is a huge waste and bad for patient care.

Why is this happening?

08.09.2025 20:58 πŸ‘ 9 πŸ” 4 πŸ’¬ 1 πŸ“Œ 0
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Does the IRS change how much I'll have to pay for my health insurance each year? Unless Congress extends the subsidy enhancements, the percentage of income that you have to pay for self-purchased (individual/family) health coverage is going to increase significantly in 2026. This ...

Next year, Marketplace enrollees are going to have a pay a larger percentage of their income in premiums (assuming Congress doesn't extend the current subsidy enhancements).

Here's my overview of how it all works, including examples: www.healthinsurance.org/faqs/is-the-...

30.07.2025 22:50 πŸ‘ 8 πŸ” 6 πŸ’¬ 1 πŸ“Œ 2

Jan 26

29.07.2025 18:50 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0