Christoph Kronenberg
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ckronenberg.bsky.social
Christoph Kronenberg
@ckronenberg.bsky.social
(Mental) health economics

Bio: PostDoc @cinchessen.bsky.social , UDE, previously CHE York. Associated with HEDG, York and RWI Leibniz.
He/him/his.

https://sites.google.com/view/christoph-kronenberg/home
I've wondered this too. Pretty sure it's true, so the question, IMHO, is mainly how big the effect is.
Btw, I think there is a great IO / market structure research question there based on GitHub data - has the incumbency effect of established OSS projects increased due to greater prominence in LLM training data?
As everyone is querying LLMs for research these days, sometimes I check PyFixest's SEO game by asking "How can I estimate fixed effects regression problems in Python?". GTP: a) linearmodels b) statsmodels c) hand rolled d) call Julia / R from Python. Pf not (yet) recommended for arcane reasons.
December 21, 2025 at 2:44 PM
Reposted by Christoph Kronenberg
Utrecht University abolishes its English language bachelor's program in economics and replaces it with a Dutch one.

They told staff (~30% international) the week before Christmas. Layoffs seem likely now. Unwarranted lobotomy is the only word I can find for it...

dub.uu.nl/en/news/econ...
Economics programme in shock after sudden cancellation of English-taught track
The Bachelor's programme in Economics & Business Economics will only be offered in Dutch from 2029 onwards, the Executive Board announced on Tuesday. The news came as a complete surprise to the econom...
dub.uu.nl
December 21, 2025 at 9:08 AM
Small grant, easy R&R please send me more emails like that.
December 19, 2025 at 3:41 PM
Reposted by Christoph Kronenberg
The Nature journals seem completely incapable of reviewing population level studies.

These are retraction-level concerns that would have been spotted by my masters students in their first month of training.
You remember that Nature Aging paper about how multilingualism protects against accelerated aging? Well…
December 17, 2025 at 7:22 AM
🤣
Thoughts and prayers for Volodymyr Zelenskyy, who will be forced to endure a Dutch working lunch with the cabinet today, as if he hasn’t suffered enough

nos.nl/collectie/13...
December 16, 2025 at 11:25 AM
Reposted by Christoph Kronenberg
It's frustrating when warnings are made from poorly done studies.

E.g. The warning on antidepressants, claiming they carry a risk of suicide, is probably just the result of selection into treatment (people who get antidepressant prescriptions have higher suicide risks to begin with)
Suicide Behavior Before and After the Start with Antidepressants: A High Persistent Risk in the First Month of Treatment Among the Young
A causal relationship between antidepressants (ADs) and a high risk of suicidal behavior at a young age has been suggested. We analyzed the rates of suicide attempts during treatment with AD in comparison with the rates before treatment initiation ...
pmc.ncbi.nlm.nih.gov
December 13, 2025 at 7:50 PM
Reposted by Christoph Kronenberg
In today's JMP blog, Fatima Aqeel uses a reform in Pakistan that lifted a cap on the share of women in medical schools to show how more women in medicine changes medical research. Result was more work on female-focused health, from both women and men blogs.worldbank.org/en/impacteva...?
With women in medicine, medical research starts asking different questions. Guest post by Fatima Aqeel
blogs.worldbank.org
December 12, 2025 at 7:31 PM
Reposted by Christoph Kronenberg
It has become received wisdom in Brussels and Washington that there is a new “euro-sclerosis”: that the EU economy is lagging the US

This view is wrong

A little primer on the measurement of productivity – and why reports of the economic death of Europe are greatly exaggerated🧵
December 12, 2025 at 12:32 PM
Reposted by Christoph Kronenberg
We're half a decade into studies finding that improving airflow in classrooms will reduce disease transmission enormously, and that bleaching surfaces etc. does very little. And yet nothing changes. Waves of flu and colds wash over schools, and the schools pretend it's an act of God.
The relative contribution of close-proximity contacts, shared classroom exposure and indoor air quality to respiratory virus transmission in schools - Nature Communications
The relative importance of close-proximity interactions, shared space and air quality to the transmission of respiratory viruses is not well understood. Here, the authors investigate this question by ...
www.nature.com
December 8, 2025 at 4:23 AM
There seems to be a Zoom outage...
December 5, 2025 at 9:19 AM
Reposted by Christoph Kronenberg
It’s now 15(!) years old, but the contrast between a crash in a ‘59 vs 2009 Chevy is still mindblowing: in the ‘59, you die 3 different ways, in the 2009, you have…



a broken left ankle
December 4, 2025 at 2:31 PM
Reposted by Christoph Kronenberg
🚨Thrilled to share our paper🚨
Does science focus on the diseases that hurt people the most?
When deadly outbreaks hit, how does research respond?

Our work with:
@prashantgarg.bsky.social
@trfetzer.com

shows how medical research worldwide responds to both endemic burdens and emergencies.
🧵👇
October 1, 2025 at 1:08 PM
Reposted by Christoph Kronenberg
📚 Want to research how family policies shape health?
RWI offers a PhD position with access to unique administrative data + international training. Apply now and work in a great team!
#EconSky #HealthEconomics #PhD
December 2, 2025 at 3:44 PM
Reposted by Christoph Kronenberg
What would you do if your 2SLS estimates are much larger than OLS, but you still have confidence in the instrument? Any tools or techniques to further probe what's going on?
December 1, 2025 at 9:45 AM
Reposted by Christoph Kronenberg
Weitere Längsschnittstudie aus England zum Zusammenhang von Social Media und mentaler Gesundheit bei Jugendlichen.

„There was little evidence to suggest that more time spent on social media was associated with later mental health problems in UK adolescents.“

www.jmir.org/2023/1/e43213/
The Longitudinal Impact of Social Media Use on UK Adolescents' Mental Health: Longitudinal Observational Study
Background: Cross-sectional studies have found a relationship between social media use and depression and anxiety in young people. However, few longitudinal studies using representative data and media...
www.jmir.org
November 29, 2025 at 11:45 AM
Reposted by Christoph Kronenberg
Paper2Video takes a paper, a picture and audio sample and creates a presentation. Well I guess we are done here. github.com/showlab/Pape...
GitHub - showlab/Paper2Video: Automatic Video Generation from Scientific Papers
Automatic Video Generation from Scientific Papers. Contribute to showlab/Paper2Video development by creating an account on GitHub.
github.com
November 28, 2025 at 12:44 PM
Reposted by Christoph Kronenberg
The AI revolutionaries have forgotten the basic rule of civilization: Don’t shit where you eat
the internet is now a photocopy of a photocopy of a photocopy of a photocopy and so on
November 28, 2025 at 12:47 PM
Somebody should write the "The effect of retraction on citations: Evidence from 172 clinical trials".
"In 2019 we notified journals about serious integrity concerns in 172 clinical trials. Over five years later, only 22 have been retracted. The 135 unretracted trials have 1989 citations in systematic reviews, clinical guidelines, and consensus statements"

[paraphrased]
www.bmj.com/content/390/...
November 28, 2025 at 12:20 PM
Reposted by Christoph Kronenberg
A *huge* vaccine victory. I've been writing on this for years; Australia has seen remarkable progress in cervical cancer prevention with the HPV vaccine. I love seeing science triumph like this.
Australia recorded ZERO cases of cervical cancer in women under 25 for the first time since they started tracking the cancer in the 80s.

This is the power of vaccines.

The HPV vaccine is extremely effective at preventing cancer.

Viruses can be oncogenic. Get your vaccines and protect yourself!
newsGP - Australia set for world-first cervical cancer elimination
Vaccination programs have played a key role, and GPs remain ‘instrumental’ in boosting screening rates to reach the 2035 target.
www1.racgp.org.au
November 27, 2025 at 6:12 PM
Reposted by Christoph Kronenberg
Do you have a paper on health insurance policy in the Marketplace, MA, or group markets that you would like to present @ashecon.bsky.social in a panel with @dmaanderson.bsky.social @paulshafer.bsky.social sky.social and me? If so, please shoot me an email or DM!
November 25, 2025 at 8:09 PM
Reposted by Christoph Kronenberg
Are you on the academic job market with a paper about crime or criminal justice policy? Please send me your JMP! Jdoleac@arnoldventures.org
November 25, 2025 at 12:28 PM
Reposted by Christoph Kronenberg
🚨 New working paper!

How well do people predict the results of studies?

@sdellavi.bsky.social and I leverage data from the first 100 studies to have been posted on the SSPP, containing 1,482 key questions, on which over 50,000 forecasts were placed. Some surprising results below.... 🧵👇
November 24, 2025 at 3:43 PM
November 23, 2025 at 4:20 PM
Reposted by Christoph Kronenberg
🚨UK Biobank has ADHD + ASD + Emotionality questionnaires in an older population now! Huge potential to study ppl born a little early to have been recognized/diagnosed. Especially Women (who are still less likely to be observed to have symptoms and be referred): biobank.ndph.ox.ac.uk/showcase/lab...
: Category 517
biobank.ndph.ox.ac.uk
November 21, 2025 at 10:36 AM
Reposted by Christoph Kronenberg
What are your favorite techniques to get students who are reluctant to talk to ask questions (in a larger class where you can't necessarily know everyone's name)? Doesn't have to be during lecture either.
November 20, 2025 at 4:33 PM