Xander Koolman INT's Avatar

Xander Koolman INT

@xanderkoolmanint.bsky.social

prof health econ @ VU Amsterdam Mostly health care (incl mental) & drug pricing https://vu.nl/en/about-vu/more-about/section-health-economics Chart☝️%children who feel responsible for care parents

269 Followers  |  310 Following  |  30 Posts  |  Joined: 05.11.2023  |  1.8532

Latest posts by xanderkoolmanint.bsky.social on Bluesky

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Defenders of Medicaid cuts are misunderstanding a study I worked on Defenders of Medicaid cuts point to the Oregon Health Insurance Experiment to argue that the cuts won’t harm people’s health. But they misunderstand the results, writes one of the study’s authors.

When health economic research is abused.

All health economist should read this.

www.statnews.com/2025/07/03/o...

04.07.2025 18:02 — 👍 2    🔁 1    💬 0    📌 0
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The Sleeper Provision in the Reconciliation Bill That Could Hobble the ACA Marketplaces An obscure provision in the U.S. House reconciliation bill could have major consequences for the Affordable Care Act Marketplaces. In a guest post for CHIRblog, the Urban Institute's Jason Levitis and...

In addition to proposing the largest cut to Medicaid in history, the reconciliation bill quietly kneecaps the ACA marketplaces.

Not with one or two big cuts, but with a bunch of smaller tweaks that, in self-reinforcing ways, make it harder to get and stay enrollled in marketplace coverage.

20.05.2025 12:24 — 👍 35    🔁 23    💬 4    📌 7
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Congratulations to Martin Gaynor, who has been honored with the Victor R… | Carnegie Mellon University - Heinz College of Information Systems and Public Policy | 43 comments Congratulations to Martin Gaynor, who has been honored with the Victor R. Fuchs Award for Lifetime Contributions to the Field of Health Economics by the… | 43 comments on LinkedIn

Thread: Obviously I'm very pleased at this recognition, but I'm sharing this for other reasons. 1st, many have the impression that people who have been successful professionally have walked a straight path - got the right degree, right 1st job, succeeded right away.

31.03.2025 16:09 — 👍 71    🔁 18    💬 7    📌 5

What's the trouble with free-riding? That the people who reap the benefits of science can often do so without contributing a fair share. Consequently, no nation has an incentive to contribute fairly, and we end up under-investiging.

24.02.2025 09:59 — 👍 0    🔁 0    💬 0    📌 0
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Excessive Drug Price Leads to Hefty Fine for Company in the Netherlands Why was a company fined €17 million for excessive pricing?

Dutch court ruled against 'abuse' of market power used to increase drug prices from €46 to more than €13.000.

The case of Leadiant and the repurposing of CDCA.

drugdevletter.com/p/excessive-...

CC: @bradfowd1.bsky.social

20.02.2025 05:40 — 👍 2    🔁 1    💬 0    📌 0
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Excessive Drug Price Leads to Hefty Fine for Company in the Netherlands Why was a company fined €17 million for excessive pricing?

Court ruled against 'abuse' of market power used to increase drug prices in the Netherlands: explanation.

www.drugdevletter.com/p/excessive-...

20.02.2025 05:30 — 👍 0    🔁 0    💬 0    📌 0

Leadiant thought it could cleverly exploit market power and increased the price of a drug from €46 to nearly €14,000.

Abuse, ruled the court—and that's good news.

Compliments to the Dutch Competition Authority

www.acm.nl/nl/publicati...

14.02.2025 19:44 — 👍 1    🔁 1    💬 1    📌 0

Hint to an interesting study. In result, the study authors suggest to substantially simplify the regulation of market access of #biosimilars, potentially lowering price levels.

21.12.2024 22:21 — 👍 1    🔁 1    💬 0    📌 0
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People living below sea level behind the dykes in the Netherlands haven’t drowned in years, so it’s clear we don’t need the dykes anymore.

15.12.2024 21:24 — 👍 5    🔁 1    💬 2    📌 0
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I wrote a piece summarizing a few of the things Trump's pick to lead the NIH, Dr. Bhattacharya, got catastrophically wrong — especially in 2020.

I’ve criticized public authorities, including for nonsensical and excessive measures (closing parks and beaches?).

But let’s not rewrite history either.

27.11.2024 22:45 — 👍 172    🔁 64    💬 10    📌 4
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Ensuring Safe Practice by Late Career Physicians: Institutional Policies and Implementation Experiences | Annals of Internal Medicine Background: Late career physicians (LCPs; physicians working beyond age 65 to 75 years) may be at higher risk for delivering unsafe care. To oversee LCPs, some health care organizations (HCOs) have ad...

Underlying study: www.acpjournals.org/doi/10.7326/...

01.12.2024 15:38 — 👍 0    🔁 0    💬 0    📌 0
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As the retirement age of physicians increases (generallly good news), quality and safety of patiënt care may be at risk.

How do we deal with this, given that many of the senior staff resist audit and feedback?

radiologybusiness.com/topics/healt...

01.12.2024 09:57 — 👍 2    🔁 0    💬 1    📌 0

While I've always thought that openscience was slightly less suitable for economics (and perhaps more called for), this position is understandable. Especially in the US.

30.11.2024 15:34 — 👍 2    🔁 0    💬 0    📌 0

Alles in de AV is vogelvrij omdat solidariteit voor die zorg niet gegarandeerd is.

20.11.2024 14:42 — 👍 0    🔁 0    💬 1    📌 0
Dr. Oz and Nutritional Supplements: Last Week Tonight with John Oliver (HBO)
YouTube video by LastWeekTonight Dr. Oz and Nutritional Supplements: Last Week Tonight with John Oliver (HBO)

John Oliver about Dr. Oz.

youtu.be/WA0wKeokWUU?...

19.11.2024 21:43 — 👍 0    🔁 0    💬 0    📌 0
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EU disease agency considers quitting Elon Musk’s X over disinfo The spread of scientific misinformation on the social media platform is making the ECDC think twice, its director says.

European health agency considers quitting X over mis formation.

My university (Vrije Universiteit Amsterdam) has already deactivated its account.

www.politico.eu/article/euro...

19.11.2024 20:55 — 👍 78    🔁 19    💬 3    📌 0
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Do real stakes/incentives matter in experiments? Recent studies say they don’t. My new paper shows that these studies’ results — and those of most hypothetical bias experiments — are uninformative when we care about treatment effects. 1/19
#EconSky #PsychSky #PoliSky
🔗: papers.tinbergen.nl/24070.pdf

18.11.2024 15:56 — 👍 7    🔁 6    💬 1    📌 1
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Horizontal inequity in the use of mental healthcare in Australia For people experiencing mental health problems, timely access to high-quality healthcare is imperative for improving outcomes. However, limited availability of services, high out-of-pocket costs, ins....

Health Economics (Early View): New study by David Johnston et al finds that lower education is a barrier to mental health care access. University graduates are 50% more likely to seek out and receive MH resources than those with high school education or less.

onlinelibrary.wiley.com/doi/10.1002/...

14.11.2024 14:14 — 👍 7    🔁 5    💬 1    📌 0

Thanks Peter, but the link is dead.

28.01.2024 19:30 — 👍 0    🔁 0    💬 1    📌 0

We are proud to co-organise the @EuHEA conference 2024 together with @wu_vienna. We are looking forward to receiving your abstracts on exciting topics in #healtheconomics!

#euhea2024 #econtwitter

euhea.eu/welcome_conf...

05.11.2023 12:59 — 👍 2    🔁 3    💬 0    📌 1

Thanks. Website looks great, but the evidence is that it helps some but not all. You may have been lucky. pubmed.ncbi.nlm.nih.gov/16399193/

13.01.2024 05:41 — 👍 0    🔁 0    💬 1    📌 0

Now you've got me interested. Could you be more specific? What was the device referred to? Do you have a make and type? Thanks a million.

12.01.2024 17:43 — 👍 0    🔁 0    💬 1    📌 0

Yes, although in my country for certain groups the average age of the mother for her firstborn is 35. So her father could be well into his 70's when she decides about a second or third child.

And it could be a future proof decision, or need not be a parent. It could be a sibling...

12.12.2023 19:17 — 👍 1    🔁 0    💬 0    📌 0
Google Scholar

So I want to study the effect of having a child once people are caregivers, not the opposite like:

"We found that access to informal care arrangements increases the probability of entering parenthood"

scholar.google.com/scholar?hl=e...

12.12.2023 19:13 — 👍 0    🔁 0    💬 0    📌 0
Graph negative association care tasks and fertility.

Graph negative association care tasks and fertility.

From Claudia Goldin: the negative association between household tasks and care tasks within the household and fertility.

Has anyone here (or know someone who has) studied the association between informal care and fertility?

www.youtube.com/live/RBkLI5i...

12.12.2023 19:05 — 👍 1    🔁 0    💬 1    📌 0

Check code for: join conditions; unique keys or identifiers in dataset; loops or iterative processes to ensure they're not appending or duplicating data; data import process to confirm you're only importing what you need; and data types of your columns to ensure they're appropriate (not inefficiënt)

11.12.2023 06:15 — 👍 1    🔁 0    💬 0    📌 0
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Boris Johnson considered ‘raid’ on vaccine plant in the Netherlands Covid inquiry expected to be told that the former PM was open to ‘military options’ to obtain ‘impounded’ jabs from factory in Leiden

Health economics does not help to grasp this shit...

www.theguardian.com/politics/202...

04.12.2023 21:04 — 👍 0    🔁 0    💬 0    📌 0
Quote from the economist.

Quote from the economist.

Strong variations on what should have been an objective fact: the development of income inequality over time.

Super interesting from a methodological, economical and political perspective (including the politics of US-economics).

www.economist.com/finance-and-...

04.12.2023 19:53 — 👍 0    🔁 0    💬 0    📌 0

That's worrying.

04.12.2023 08:19 — 👍 0    🔁 0    💬 0    📌 0
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Attributing practice variation by its sources: the case of varicose veins treatments in the Netherla... Background Unwarranted practice variation refers to regional differences in treatments that are not driven by patients’ medical needs or preferences. Although it is the subject of numerous studies, ...

Practice variation often calls for health system intervention.

While the causes of practice variation are understood, their contributions often aren't.

We propose a statistical attribution to study the contribution of referrals.

doi.org/10.1186/s129...

04.12.2023 07:46 — 👍 0    🔁 0    💬 0    📌 0

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