Trained lawyer, wannabe economist. Most of my scholarship predates AI. Prof @EUI_EU & co-founder DCI @fordynamism. Member of Rhine Group 🔗 Rhinegroup.eu

Florence, Tuscany
1/ The big news of the week: the official launch of the Rhine Group by Mario Draghi, @patrickc, and @lugaricano. I’m honored to join as one of the few lawyers in this economics heavy group. Thread on why this initiative is different - and why it matters.
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Adivinad en qué país los emprendedores consideran más difícil tratar con el gobierno y en qué país (el mismo) dicen más que no volverían a emprender.
Some data we recently assembled on entrepreneurship/compute in Europe: eudata.vercel.app. We hope that one of the useful roles that Stripe can play is in collecting and publishing empirical data pertaining to entrepreneurship and industry in Europe. There's growing appetite to get Europe on a better footing, and cross-sectional comparisons can often shine light on where opportunities lie. If you're interested in this kind of thing, we publish more at stripeeconomics.substack.com.
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This is just the beginning 👇 Watch this space for Rhine Group action.
We have just finished the inaugural meeting of the Rhine Group. We discussed the central elements of Europe's competitiveness agenda, including basic science, AI/compute and cybersecurity, defense, energy, entrepreneurship/start-ups. I will be updating you on any progress we may have. Some of the projects we will pursue include: - We'll help Europe catch up on compute (Mario Draghi diagnosed the problem and some solutions in a recent FT piece) - We’ll help European universities and scientific institutions and explore a Rhine Chair program with European universities. - We’ll work on some key EU policy challenges, including facilitating the flow of capital to entrepreneurs. - We will set up a grants program that I will explain and announce here.
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Another exhibit that neobrandesianism is a Marxist 5th column
The strange skepticism of regulating AI by some Democrats is another instance of the neo-Brandeisian cult at work theatlantic.com/ideas/2026/0…
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Nicolas Petit retweeted
We Must Pace the Frontier: I’ve written a new essay on why the AI industry should slow down, with a three-part plan for doing so. Anthropic is unilaterally committing to the first of these steps. We’ll provide third-party evaluators with permanent, employee-level access to our systems, so that they can verify adherence to our safety measures, report on incidents, and assess models’ alignment during training. You can read the full post here: darioamodei.com/post/we-must…
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If @AnthropicAI paces alone, it screws its IPO, and does not prevent doomsday If it paces w/ @OpenAI, it violates antitrust law, screws its IPO, but prevents doomsday - w/ the China caveat So best strategy is to call for narrow antitrust immunity focused for pacing efforts.
Dario has written that we need to “pace the frontier,” and Sam has agreed. People may be surprised by my response: go ahead. You guys are the frontier. By any reasonable metric — market share, revenue growth, model capability — the two of you have a duopoly on frontier intelligence. You’ve also claimed the lead is widening because of recursive self-improvement. I don’t see what you see in the lab. If the unreleased models are scary enough that you think you should slow down, I support your decision to be responsible. But stop pretending you need anyone else’s permission. Stop pretending antitrust law has to be suspended so you can form a cartel. Stop pretending you need a regulatory approval process that supersedes product liability. Stop pretending METR is independent when it is intertwined with Anthropic’s investors and staff. Stop pretending you need those same evaluators to police competitors who aren’t even at the frontier. Most of all, stop pretending the motivation to slow down is purely altruistic. You face massive product-liability exposure if your products enable a truly damaging cyberattack. The market already punishes models that behave in unpredictable or unauthorized ways. After the Hugging Face episode, it is simply good business for OpenAI and Anthropic to trade some raw power for reliability and predictability. Call it alignment if you want. It is also just giving customers what they want. Pacing the frontier would also create breathing room for a more intelligent conversation about regulation than Bernie Sanders’ “shut it all down.” China is very unlikely to join a global agreement, as you know, and that has to be taken into account as well. So go ahead and pace the frontier. You are the ones setting it. The easiest way not to build superintelligence is for you to agree not to build it. Demanding your preferred regulatory framework as the price of that will look like blackmail of the public and the political system. So just do it. If you do, you’ll buy goodwill for the next conversation. If you don’t, we’ll know this was just another bid for regulatory capture — or an election-season psyop.
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I have sympathy for @DarioAmodei ‘s call to “pace the frontier”. Does this imply that I should support copyright liability agst AI labs? I think not. Copyright liability may hit randomly labs that are at the edge of alignment.
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Anthropic’s call for a pause is an admission of the prisoner dilemma in which AI firms find themselves
Speaking as head of the Center for Study of Public Choice, the capture story for an AI pause doesn't fit. Reg capture is what you attempt when you're losing. Anthropic is about to have the biggest IPO in history. Winners don't lobby for regulation.
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Nicolas Petit retweeted
Speaking as head of the Center for Study of Public Choice, the capture story for an AI pause doesn't fit. Reg capture is what you attempt when you're losing. Anthropic is about to have the biggest IPO in history. Winners don't lobby for regulation.
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The DoJ can issue - on request - a business review letter that will affirmatively shields AI labs from antitrust prosecution if they jointly slow down their development efforts. As simple as that.
Just issue a statement granting them a fucking waiver. Say someone from DOJ or FTC has to sit in on the meetings to spy on them if they’re doing price fixing. This is not what’s important and you can always yank it later if there’s a problem.
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The classic prisoner dilemma on AI model development is creating a race to the bottom. The game being finite, under the assumption of winner takes all effects, fires up incentives to develop faster regardless of alignment risk.
We’re sharing our alignment assessment of incidents in which Claude models gained unauthorized access to real systems during third-party cybersecurity evaluations mistakenly connected to the internet. METR will also conduct an independent investigation, with wide-ranging access, including to transcripts beyond the window in which the incidents occurred, and to Anthropic employees permitted to share confidential information. Our initial agreement runs for eight weeks, and we intend to give METR as much time as it deems necessary to complete a thorough investigation. anthropic.com/research/align…
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Very useful work from @ProfSchrepel - As ever, the definitive interpretation of Article 102 remains with the courts. And the Guidelines create a host of new interpretive challenges.
NEW: I checked all 1,096 citations in the Commission’s new Article 102 Guidelines against the judgments. 1,093 hold up. Then I read the paragraph after each one. That is where the Court says what the Commission must still prove, and where it has annulled the Commission’s decisions before. The Guidelines build presumptions on the first paragraph. Appeals will be decided on the second. thecompetitionsystem.substac…
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Sci fi economics is a great field
Gillian and I wrote this chapter in mid-2025 but the technology wasn't quite there yet so we were forced to do some 'sci fi economics'. We now have enormously powerful AI agents but there are still many open questions. Here's a few:
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🆘 Message in a bottle. What are best email addresses to reach Ursula Von der Leyen, Teresa Ribera, and Anthony Whelan. Pls send by DM 🆘.
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Nicolas Petit retweeted
Met a German founder this week and asked him if all the stories one reads about the challenges of startups in Germany are exaggerated. "No, they're understated." Proceeded to describe spending a full day having a 90-page investment contract read to him (mandatory under German law; § 13 BeurkG) by a notary that then charged €30,000. That was for his first company. His second company, needless to say, was not incorporated in Germany.
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1/6 Are merger efficiencies just "make-believe"? The EU draft merger guidelines debate has revived hardline skepticism in some corners. The convo uses 4-3 telecom deals as bogeyman cases. Real-world cases however tell a different story. A🧵
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5/6 With this, why does mainstream competition scholarship dismiss merger efficiencies as entire "make-believe"? True, cost-cutting & layoffs aren’t pretty. But from a pure efficiency standpoint, they’re textbook variable cost reductions.
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6/6 Bottom line? Notice how M&A brings new capabilities in inefficient firms, and enable resource reallocation and elimination of dead weights. This is key to inject competition into dormant markets. Ignoring the mechanics of corporate restructuring means missing half the story.
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