Philipp Radler (@radler92.bsky.social)

@jakemgrumbach.bsky.social Oct 9, 2026, 4:54 PMReposted by @radler92.bsky.social

New working paper: the Norwegian wealth tax was a huge success. The "exodus" of wealthy people never happened (less than 100 individuals left). Tax revenue increased by 71.5%. No changes in business activity or investment.

www.nber.org/papers/w35854

Taxing Entrepreneurial Wealth: Evidence from
Norway, 2021-2025
Marius A. K. Ring
WORKING PAPER 35854|
DOl 10.3386/w35854
ISSUE DATE October 2026
Whether imposing higher taxes on business owners adversely affects business activity by constraining investment and inducing capitalist flight is a central question in the ongoing debate on how to tax the ultra wealthy. To shed new light, I exploit a series of related Norwegian reforms during 2021-2024 that increased dividend tax rates, removed migration-related capital gains tax loopholes, and nearly doubled the effective marginal tax rate on business wealth. These reforms spurred international debate and, allegedly, an "exodus" of Norwegian billionaires (Financial Times,
2023). While I document clear effects on migration, these responses are concentrated among the top 0.1% of the wealth distribution and mostly confined to 2022 and 2023. My results indicate that at most 100 individuals left due to the reforms. I find no evidence of significant outmigration or reduced inflows of startup founders or inventors. I estimate that absent any outmigration, wealth tax revenues would have increased by 75% from 2021 to 2024. Reform-driven outmigration lowers the revenue gain to 71.5%. My findings further show that outmigrating owners' firms remain economically active and do not reduce investment. In a broader set of analyses, I examine whether business outcomes are affected, regardless of whether owners outmigrate, since firms may reduce investment both due to liquidity constraints or distortions to owners' savings decisions. I compare firms owned by Norwegian individuals subject to the wealth tax with firms owned by foreigners and other tax-exempt entities. By merging historical ownership data from Orbis with the Norwegian shareholder register, I perform these analyses on both Norwegian and foreign-domiciled firms.
Across settings, I find no evidence that Norwegian-owned firms pay out more dividends or invest less after the reforms,…

@ryoharada.bsky.social Oct 9, 2026, 3:15 PMReposted by @radler92.bsky.social

Finally, our Sukunaarchaeum paper is out in Current Biology!!
authors.elsevier.com/c/1nvtC3QW8S...

@wcratcliff.bsky.social Oct 7, 2026, 8:57 PMReposted by @radler92.bsky.social

Out today in @nature.com: our review on how single cells evolve into multicellular organisms. With Ozan Bozdag, @kaitong25.bsky.social, Peter Yunker, and @matthewherron.bsky.social.

rdcu.be/9ZuiKow9twKa

For an overview, check out the video below.

@strictlychristo.bsky.social Oct 3, 2026, 2:11 AMReposted by @radler92.bsky.social

Sir Ian McKellen orates 'The Stranger's Case' from 'Sir Thomas More' by Shakespeare about the Evil May Day xenophobic riot of 1517 in London. This passage was written 400 years ago, but times never change. Humanity refuses to change its unwarranted bias against 'others'.

@anagtz.bsky.social Oct 4, 2026, 4:42 PMReposted by @radler92.bsky.social

Where did eukaryogenesis likely happened? We studied a modern analog: microbial mats from a sulfidic, low O2, volcanic crater lake in the Afar region. Asgardarchaea thrive in the SO4-reduction zone along SO4-reducers :) @deemteam.bsky.social
doi.org/10.1038/s415...

@radler92.bsky.social Oct 2, 2026, 8:08 PM

Thank you Elif! :)

@helmholtzhzi.bsky.social Oct 2, 2026, 10:41 AMReposted by @radler92.bsky.social

Asgard #Archaeen sind unsere nächsten bekannten mikrobiellen Verwandten. Eine Studie von @archaea-vienna.bsky.social in Kooperation mit HZI-Forscher:innen zeigt nun, dass sich diese Zellen überraschend dynamisch durch ihre Umgebung bewegen.
www.helmholtz-hzi.de/media-center...

@radler92.bsky.social Oct 2, 2026, 8:08 AM

Thank you so much Hiro! It was a pleasure working on this with you and I am looking forward to our future endeavors!

@radler92.bsky.social Oct 1, 2026, 2:02 PM

Thanks a lot Roland! I hope to see many Asgards crawling soon enough and to test their behavior from different angles!

@radler92.bsky.social Oct 1, 2026, 2:00 PM

That is a great question, one we hope to answer in the future. Right now we think the cells are surrounded by potential signals and cannot decide where to go. only rarely they find something they find really attractive. Time will tell!

@radler92.bsky.social Oct 1, 2026, 12:45 PM

Thanks Martin!

@radler92.bsky.social Oct 1, 2026, 11:38 AM

Thank you Nobu! I am very excited to keep working together with you on understanding these amazing cells.

@radler92.bsky.social Oct 1, 2026, 10:25 AM

Thank you Reena :)

@radler92.bsky.social Oct 1, 2026, 9:25 AM

Also looking forward to expand with you ;)

@dimdalk.bsky.social Oct 1, 2026, 8:46 AMReposted by @radler92.bsky.social

So happy for this work!

Huge thanks for the teamwork and the amazing collaborative effort to everyone participating in this!

#archaea #nitrification #inhibitors #environmental #microbiology #nitrogencycle

@radler92.bsky.social Oct 1, 2026, 8:36 AM

Huge thanks to the reviewers and our collaborators for their input and critical comments. We are excited to see what other surprises these archaea still have in store for us! And here to celebrate: Two “Lokis” stained for Lokiactin (FastAct, magenta), reaching out toward each other!

@radler92.bsky.social Oct 1, 2026, 8:36 AM

During revision we performed more controls and new experiments to show actin inhibition stops dynamics in both Asgard archaeal strains, further supporting a shared mechanism dependent on Lokiactin. Check out the peer review file, some revision experiments didn't make it into the final version.

@radler92.bsky.social Oct 1, 2026, 8:36 AM

The first paper of my PostDoc in Christa Schlepers group (@archaea-vienna.bsky.social) on the dynamics of Asgard archaea is now out in Nature!
www.nature.com/articles/s41...

This was a great team effort and I am looking forward to uncover the complex behavior of these cells further!

@archaea-vienna.bsky.social Sep 30, 2026, 2:18 PMReposted by @radler92.bsky.social

Congrats to Dimitri and all co-authors on their new publication!

Common Nitrification Inhibitors Exhibit Distinct Mechanisms on the Ammonia-Oxidizing Archaeon Nitrososphaera viennensis

A great and in-depth look at SNIs and AOA!

@dimdalk.bsky.social

#archaea #omics

doi.org/10.1021/acs....

@nikapende.bsky.social Sep 23, 2026, 4:06 PMReposted by @radler92.bsky.social

So happy to see this paper finally out 🥳 it took only seven years after the first purification of archaeal peptidoglycan 🤣 Congrats to all the people involved 🥂🍾
And here is the story behind the paper: communities.springernature.com/posts/cracki...