Great to see @Bloomberg cover our HJMM (Hartley-Jolevski-Melo-Moore) GenAI adoption series. We find that GenAI adoption has been slowing since late 2025 after an early 2025 jump. Of course, could be temporary. Our Data: generativeairesearch.org Our Paper: papers.ssrn.com/sol3/papers.…

With @Stanford President Jon Levin

FOR THE FIRST TIME IN 53 YEARS, THE KNICKS ARE NBA CHAMPIONS 🏆 New York defeats San Antonio 4-1 in the NBA Finals, capturing their third championship in franchise history!

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Today marks the 100th birthday of Jérôme Lejeune, the pioneering French geneticist who discovered the chromosomal cause of Down syndrome. His work, which transformed modern genetics, and commitment to those with Down syndrome keep inspiring many. Happy 100th birthday Dr. Lejeune!

Piketty, Stiglitz & co are ultimately inverted Rawlsians (minimax, minimize the max wealth) when it comes to their social welfare function. Unlike standard Rawlsians whose social welfare function is maximin, maximize the min wealth. Also wealth for them is a negative externality.

How to say “I don’t understand equilibrium in economics” without saying it.

A red-tailed hawk at @Stanford on graduation weekend

Move over, World Cup stars, Hudson is ready for kickoff! ⚽ Our male muskox is showing off some seriously powerful soccer skills as he headbutts and chases a massive soccer ball around. Enrichment plays an important role in animal care by encouraging natural behaviors.

I don’t think many Americans realize how close we came to war with France right after our Civil War. While we were distracted by that conflict, French Emperor Napoleon III occupied Mexico and installed the puppet Emperor Maximilian, raising the specter of widespread European recolonization of Latin America. Our leaders unsurprisingly took a dim view of that prospect, and the very day after General Grant accepted General Lee’s surrender, he declared “Now for Mexico!” and sent General Sheridan to the Mexican border with 30,000 men. Grant and Sheridan wanted to invade Mexico to drive out the French alongside Mexican insurgents led by Benito Juárez. Secretary of State Seward, gravely wounded in the events surrounding President Lincoln’s assassination, opposed the plan, warning that “If we got into war and drove out the French, we could not get out ourselves.” There were heated debates within the Andrew Johnson Administration on how to proceed. Eventually, Seward used diplomacy to pressure the French to withdraw, while Sheridan funneled arms to the Mexican insurgents. The last French troops withdrew in February 1867 and Maximilian’s empire collapsed (and he was executed) just months later. I visited the site of the execution (in Querétaro) as US Ambassador to Mexico and reflected on how the events there affected the history of that country as well as my own.

"Anthropic disables access to Fable 5 and Mythos 5 to comply with government directive" via @CNBC cnbc.com/2026/06/12/anthropi…

A way to see the amazing history of economic growth and declining poverty over the last two centuries.

This is a great graph. The point is not time. The x axis is gdp per capita. The point is that growth does benefit all. The idea growth only benefits the rich is dramatically false. timely given Stieglitz, Pketty et al recent degrowth noise.

What causes economic growth is arguably the most important question in economics. A real joy to have @PeteKlenow (Stanford Econ Prof), one of the most influential growth economists in the world, on the @capandfreedom podcast to talk development accounting, misallocation and AI

As a Houstonian I'm thrilled that I found this ode to my city, but also annoyed I never knew it existed.

“SpaceX, Now Worth $2.1 Trillion, Pulls Off Goldilocks Debut” via @WSJ wsj.com/business/spacex-now-…

Let's go usa 😎🐾