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Tore Ellingsen

@toreellingsen.bsky.social
1.2K followers 502 following 176 posts

Economist at Stockholm School of Economics My book, Institutional and Organizational Economics is available at this link: www.politybooks.com/bookdetail?book…

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Reposted by Tore Ellingsen
Georg Weizsäcker @georgweizsaecker.bsky.social · 27/09/2026
"What could make a much bigger difference is electrification" "Over two thirds of the energy in the fossil system is lost as heat [...] electricity is 23% of final energy, but it delivers almost 40% of useful energy" 👍🏻
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Reposted by Tore Ellingsen
Dorothy Bishop @deevybee.bsky.social · 19/09/2026
Elon Musk, FRS. Royal Society justify not booting him out because, after all, Isaac Newton wasn’t a nice person. And yes, he was doing exactly these things in summer of 2024 when @royalsociety.org first reconsidered his fellowship
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Tore Ellingsen @toreellingsen.bsky.social · 14/09/2026
Kremlev is an apt surname. Here is the Wikipedia page of Don Jr’s good friend: en.wikipedia.org/wiki/Umar_Kr...
en.wikipedia.org
Umar Kremlev - Wikipedia
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Tore Ellingsen @toreellingsen.bsky.social · 14/09/2026
S+C+MP+L+KD. Hur lång tid behöver det ta innan polletten trillar ner?
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Tore Ellingsen @toreellingsen.bsky.social · 12/09/2026
Eagerly awaiting the critical counterpoints of @lessig.bsky.social
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Terence Tao @teorth.bsky.social · 11/09/2026
A group of 25 Fields Medalists, including myself, have made a joint declaration on Math and AI: mathandai.org . We welcome additional signatories. See also this article in the Economist announcing the declaration: www.economist.com/science-and-...
mathandai.org
Declaration — Math and AI
Read the declaration and add your name.
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🇵🇸Tim Henke (tɪm 'ɦɛŋ.kə) @timhenke.bsky.social · 10/09/2026
Prompted by the scandal around Navier-Stokes, Andreas Thom raises the possibility that OpenAI may also have stolen the work on non-sofic groups:
1/3 I want to record a number of points that I realized after reading up on the controversy. In fact it recalls an exchange I had with OpenAI after its non-sofic-group announcement. It exposes a serious, unanswered question about whether researchers can trust OpenAI with unpublished mathematics.

I wrote in an email to Mark Sellke and Sebastien Bubeck shortly after the surprising finding of a non-sofic group using the methods of Kun and myself:
“Another point is that I and a colleague in Dresden were discussing the expander matching problem and various extensions of the work with Gabor Kun actively over the last months with ChatGPT, so that we are of course curious if that was part of the training data or accessible to the reasoning process. There is a certain (frankly unacceptable) lack of transparency here; and I fear it will damage the communal process of math more than the new AI-generated results will benefit the subject.”

Mark Sellke’s complete answer was: “Regarding your conversations with ChatGPT: that did not happen.”

I had explicitly asked about two different things: (1) whether our conversations entered training data, and (2) whether they were accessible to the solving process. The categorical answer now looks as though it addressed only direct access under (2). No such qualification, explanation, or evidence was given. I take this as dishonesty to say the least.
OpenAI now says in the Buckmaster-Alpöge case that no specific user data was accessed, but adds that it “cannot rule out that de-identified data derived from their usage of our products helped improve our models.”2/3 OpenAI is drawing a distinction that its answer to me erased, despite the fact that my question explicitly made that distinction.
We are not required to reverse-engineer OpenAI’s internal training pipeline to establish what happened. Only OpenAI has the relevant data for that. If Sellke and Bubeck give a categorical denial, it must disclose the basis: product and privacy settings, relevant datasets and checkpoints, and what “de-identified data derived from usage” means.
I disabled model training on 29 June. That control is still only a promise whose implementation users cannot audit, and it is prospective: it does not answer what happened to earlier conversations or to derivatives already selected. OpenAI’s answer did not mention the setting or any account-specific check.
There is also a mathematical parallel, though a less explicit one. The approach of Kun and myself was not the main line of attack on non-soficity, in fact there were other more promising approaches along the line of quantum games etc. OpenAI’s detailed command of our techniques therefore made me wonder how the model found this route. If nonpublic research supplied by users improved a model and the provider then used that model to race those users to publication - without informed consent, disclosure, or credit - that would be ethically indefensible. De-identification may remove a name; it does not remove the intellectual content of a mathematical idea. Sellke and Bubeck seem to be blind to this simple moral aspect.3/3 Sellke’s categorical answer was, at minimum, unjustifiably broad and materially misleading; looking back it was plainly dishonest. Bubeck’s acknowledged attacks and his attempt to exclude Alpöge from a proposed OpenAI-proof paper deepen the concern that there is a loss of moral compass. Taken together, this raises serious questions about their judgment and personal integrity.
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Tore Ellingsen @toreellingsen.bsky.social · 09/09/2026
I hope some top investigative journalist is already on to this; if true, a thoroughly fact-checked story might be Pulizer worthy.
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Data Colada @datacolada.bsky.social · 02/09/2026
Colada[139] Artificial Deadlines Part 2 Evidence of fraud in the 25 year old gradesheet behind the key finding in an influential paper on deadlines and procrastination. datacolada.org/139
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Data Colada @datacolada.bsky.social · 31/08/2026
An influential paper by Ariely & Wertenbroch (2002) reported two studies with tampered data. Post 1 of 2. datacolada.org/138
datacolada.org
[138] Artificial Deadlines (Part 1): Evidence of Fraud in an Influential Study About Procrastination
A new paper in Psychological Science (.htm) reports a failure to replicate Study 2 of Ariely and Wertenbroch’s influential article entitled, “Procrastination, Deadlines, and Performance: Self-Contr…
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Tore Ellingsen @toreellingsen.bsky.social · 24/07/2026
Oh, UCL?
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Reposted by Tore Ellingsen
Gabriel Malor @gabrielmalor.bsky.social · 18/07/2026
This is pretty much where I am. Ya'll know that I'm more conservative than most of the folks here. But Trump v. United States changed things. An unaccountable president is a dictator. No fear of criminal prosecution for himself plus the pardon power equals the end of the Constitution.
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Anne Applebaum @anneapplebaum.wsocial.eu · 12/07/2026
Lindsey Graham was one of the main subjects of a @theatlantic.com cover story I wrote in 2020, on why people collaborate with regimes they know are immoral. Here's a gift link: www.theatlantic.com/magazine/arc...
theatlantic.com
History Will Judge the Complicit
Why have Republican leaders abandoned their principles in support of an immoral and dangerous president?
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Tore Ellingsen @toreellingsen.bsky.social · 12/07/2026
A compelling interpretation of the man that leading Norwegian politicians chose to eulogize today. (Do they think NATOs future depends on emulating Graham’s sycophancy?)
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Reposted by Tore Ellingsen
Nitish Pahwa @nitishpahwa.com · 12/07/2026
harpers.org/archive/2018...
21 Grahams

From descriptions of Donald Trump, stated between 2015 and 2018, by Lindsey Graham, a Republican senator from South Carolina.

A race-baiting, xenophobic bigot
The Islamic State’s “man of the year”
The death of the GOP’s relationship with Hispanic voters
A death blow to the GOP’s relationship with women
The world’s biggest jackass
A wrecking ball
A salesman of fear
A politician whose ideas are gibberish
A politician who is incapable of representing a mattress company
A poor representation of a Republican
A president who is unfit for office
A president who sometimes crosses the line
A Twitter user whose tweets are sometimes beneath the office of the presidency
A man who has a blind spot
A thoughtful person
A good person
A strong person
A golfer with an accurate drive and an athletic swing
A president doing a great job
The best hope in decades for peace
A potential recipient of the Nobel Peace Prize
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Tore Ellingsen @toreellingsen.bsky.social · 12/07/2026
Vi må kanskje leve med at våre politikere smisker for drittsekker når de lever og har makt, men er det virkelig nødvendig å fortsette etterpå?
vg.no
Senator Lindsey Graham er død
– Jeg føler dyp sorg etter bortgangen til min venn Lindsey Graham, skriver finansminister Jens Stoltenberg (Ap).
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Data Colada @datacolada.bsky.social · 03/07/2026
The Cover-Up in Gino v Harvard datacolada.org/136
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Gremliny Nussboo @emilynussbaum.bsky.social · 06/07/2026
He can’t help telling the truth about how much he lies
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Scott Horton @robertscotthorton.bsky.social · 27/06/2026
I was a regular user of Facebook and was kicked off the platform without explanation within hours of my posting excerpts from Sarah Wynn-Williams' Careless People, which revealed embarrassing details from the life of Mark Zuckerberg, particularly his dealings with Chinese president Xi.
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Eleonora Alabrese @eleala.bsky.social · 17/06/2026
🧵 New working paper out today: "Measuring the Regional Economic Cost of Brexit: Evidence as of 2026" with @jacobedenhofer.bsky.social @trfetzer.com & Shizhuo Wang Here's what the data say about who paid the price in these 10 years from the referendum 1/…
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Otto English @ottoenglish.bsky.social · 15/06/2026
As long as the government remains on the fascist enabling X nobody can take anything they say seriously with regards to social media and safety
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Tore Ellingsen @toreellingsen.bsky.social · 21/05/2026
”What is more surprising is that the European Union is collaborating with Trump’s effort to destroy the legal framework that has governed international trade since the 1940s.”
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Tore Ellingsen @toreellingsen.bsky.social · 05/05/2026
Last push, for those who missed it. I promise, won’t talk about this again…
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Tore Ellingsen @toreellingsen.bsky.social · 05/05/2026
Erik’s thread is much better than mine!
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Reposted by Tore Ellingsen
Georg Weizsäcker @georgweizsaecker.bsky.social · 04/05/2026
Ellingsen and Mohlin on how to formalize different kinds of duties - e.g. asking about the tradeoffabilility between a duty and its material cost. 👏🏼
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Tore Ellingsen @toreellingsen.bsky.social · 04/05/2026
Is unselfish behavior primarily driven by desire or by duty? Erik Mohlin and I don’t settle this question. However, by developing and testing a model of social duties, we allow the question to be addressed: www.journals.uchicago.edu/doi/10.1086/... (ungated version at my home page) 1/10
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Tore Ellingsen @toreellingsen.bsky.social · 01/05/2026
Här är ett kortfattat svar till Fredrik Segerfeldts inlägg på DN debatt i dag.
Grafen visar att Sverige passerade Västeuropa i termer av BNP per capita på 1930-talet och har legat högre sedan dess. Båda regioner har under denna tid växt mycket mer än världen som helhet.
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Tore Ellingsen @toreellingsen.bsky.social · 27/04/2026
Formerly prominent, surely?
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Tore Ellingsen @toreellingsen.bsky.social · 17/04/2026
I sense that the maga base might be identified at 39%.
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Tore Ellingsen @toreellingsen.bsky.social · 16/04/2026
Nog borde regeringen kunna svara ”ja” på frågan: - Gäller folkrätten lika för alla stater?
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Theoretical Economics @econtheory.bsky.social · 14/04/2026
Polarization happens www.econometricsociety.org/publications...
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Roger Myerson @rbmyerson.bsky.social · 28/03/2026
#NoKings in Chicago.
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Tore Ellingsen @toreellingsen.bsky.social · 17/03/2026
www.theguardian.com/environment/...
theguardian.com
Revealed: the world’s worst mega-leaks of methane driving global heating
Exclusive: Fixing a leak can be simple and equivalent to closing a coal power station, making lack of action maddening, say analysts
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Reposted by Tore Ellingsen
Erik Mohlin @karlerikmohlin.bsky.social · 03/02/2026
EFN har gjort ett reportage om Tore Ellingsens (@toreellingsen.bsky.social) och min forskning om plikt och plikt-baserad motivation efn.se/play/pliktka... Tack till de alla de inblandade duktiga journalisterna!
efn.se
Pliktkänslan värd hundratals miljarder
EFN lanserar nya programmet Spets – som bygger på ekonomisk forskning
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Tore Ellingsen @toreellingsen.bsky.social · 25/01/2026
Surely, Sanna Marin (former Finnish Prime Minister) must now salvage what is left of her reputation and leave the Tony Blair Institute?
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Tore Ellingsen @toreellingsen.bsky.social · 17/01/2026
Yes. Ending the excessive legal protections of US Big Tech is obviously the first step in Europe’s retaliation.
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Tore Ellingsen @toreellingsen.bsky.social · 09/01/2026
etidning.dn.se/shared/artic... Viktiga frågor, insiktsfull recension.
etidning.dn.se
Ministrarna hade aldrig en chans. Sverker Sörlin beskriver hur kultur- politiken blev ett hot mot kulturen
Parisa Liljestrand är den perfekta kulturpolitikern. Den tanken slår mig när jag läser Sverker Sörlins analys av det moderna kulturbegreppet i den nya boken ”Kulturens värde”: hon är perfekt – och vem...
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Anna Ekström @annaekstrom.bsky.social · 07/01/2026
Så här blir det när man är arg när man skriver. www.dn.se/kultur/anna-...
dn.se
Anna Ekström: Hur tänker Parisa Liljestrand att vi ska orka bära upp folkbildningen?
Det låter vackert med en kanon – men kulturen tystnar när studieförbund tvingas ställa in och folkhögskolor lägger ner på grund av regeringens politik.
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Tore Ellingsen @toreellingsen.bsky.social · 07/01/2026
Many thanks for the kind words, Scott! I’ll immediately update the book’s companion site, where I post lecture notes and more: sites.google.com/view/tore-el...
sites.google.com
Tore Ellingsen
Paperback at EUR 19.90, GDP 15.99, USD 22.95, SEK 260. Also available as hardback and ebook.
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Tore Ellingsen @toreellingsen.bsky.social · 06/01/2026
Is there already a term for overconsumption of negative news about doomscrolling?
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Erik Angner @erikangner.com · 06/01/2026
”Last night in Sweden,” in contrast to what you may have heard, rates of lethal violence were at record lows ⤵️
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Fiona Scott Morton @proffionasm.bsky.social · 05/01/2026
I have a new paper w Andrea Prat & Jake Spitz. We show that Republican appointed Supreme Court Justices vote in favor of the richer party by over 70% today, as compared to D’s at 30%. In the 1950s and both were at 50%. This strong trend may contribute to rising inequality. www.nber.org/papers/w34643
nber.org
Ruling for the Rich: the Supreme Court over Time
Founded in 1920, the NBER is a private, non-profit, non-partisan organization dedicated to conducting economic research and to disseminating research findings among academics, public policy makers, an...
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Social Media Lab @socialmedialab.ca · 29/12/2025
The analysis is on point 🎯 and the framing is a chef 💋. "Trump assumed that Canada had no choice but to fold. He believed that trade dependence was a leash he could yank whenever he wanted a concession. He was wrong." #cdnpoli www.newsletter.samuel-warde.com/p/canada-fli...
newsletter.samuel-warde.com
Canada Flips the Script, Hits Trump Where It Hurts the Most
The Art of the Self-Own
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Tore Ellingsen @toreellingsen.bsky.social · 17/12/2025
Om man vill göra kriminalpolitiken enklare att utvärdera, kanske man skulle experimentera med olika åldersgränser i olika regioner? Varför inte?
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Gabriel Zucman @gabrielzucman.bsky.social · 12/12/2025
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🧵
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Tore Ellingsen @toreellingsen.bsky.social · 02/12/2025
When this @DeptofWar says we have the back of our warriors-we mean we stab them in it.
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Ryan Goodman @rgoodlaw.bsky.social · 30/11/2025
Senator Kelly is correct. Plus a Public Service Announcement: KEY section of Department of Defense's Law of War Manual is 18.3.2.1. The VERY rule on the "requirement" to refuse illegal orders gives as its paradigmatic example of what is "clearly illegal: "orders to fire upon the shipwrecked."
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Paul Goldsmith-Pinkham @paulgp.com · 15/11/2025
Update your syllabus and stay on the frontier - it will increase your students’ wages. Epic work by my colleagues @barbarabiasi.com and @profsongma.bsky.social #linkoftheday www.barbarabiasi.com/uploads/1/0/...
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Tore Ellingsen @toreellingsen.bsky.social · 22/10/2025
www.theguardian.com/environment/...
theguardian.com
Inside the illegal eel trade: is there a way to stop Europe’s biggest wildlife crime before it’s too late?
Interviews with experts and key players across four countries reveal why efforts to stop the multibillion-euro trafficking industry have failed – and how to save the endangered fish
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