Right now, given the recent stumbles in AI-related stocks, the hand-wringing over concentration is particularly common again. Senior lecturer Mark Kritzman and co-author put out a paper on this last year. It forms another part of the literature telling people to stop worrying about this. "In the US stock market, the buy-and-hold strategy generated more than twice as much wealth as the dynamic strategy from January 1936 to June 2025, and it did so with less risk," they wrote.

Professor of the practice Gary Gensler joined Bloomberg "Open Interest" to discuss what a change in Congress could mean for financial oversight. He also warned that Washington isn't moving fast enough on AI risks and predicted a possible repricing of equity and debt markets.

On a national level, it's hard to know who is receiving care that goes uncompensated. But assistant professor Benjamin Vatter said there are some clues. "It tends to be younger people, a lot of working-age people," Vatter said. "In states that did not expand Medicaid, it's often the people that fall into these gaps that exist between Medicaid and the exchange's subsidies." Vatter said unpaid care can also come from people who are "underinsured," whose insurance plans still leave them responsible for a large portion of their care.

Research scientist Christian Catalini sees a business opportunity in taking responsibility for AI-generated work. He called the model "liability as a service. I think a lot of these AI products eventually will come with insurance," he said.

Associate dean Christopher Knittel joined this podcast to discuss the costs and benefits of clean energy. "We should continue to subsidize rooftop solar, but we should do it in a way that's not regressive, that is not leaning harder on those homes that cannot install solar," Knittel said.

Nvidia's $3 billion investment in Meta's share sale is the latest addition to a portfolio of stakes, loans, and guarantees that has made the chip giant what some analysts describe as the central bank of the artificial intelligence boom. "They're essentially becoming a bank," said professor Michael Cusumano. "Channeling it back to infrastructure investment tied to purchases of Nvidia equipment is a smart thing."

Institute Professor Daron Acemoglu said: "The thing that gives me hope is that humans are very adaptable. People, even in this polarized world, have a deep sense of fairness, around which we can come together. There are so many shared moral values between the different sides of the aisle in the UK and the US. Polarization, bad leadership, and social media have obscured them."

Professor Catherine Wolfram said that much of the criticism of carbon markets comes from the voluntary markets, where companies buy and sell carbon offsets without formal monitoring, with corruption and manipulation sometimes a factor. While Wolfram said these potential problems are solvable, she said the issue of large areas of forests being used as carbon sinks is more complex when businesses are also dependent on the area for timber.

The amount of time mobile users are actually spending on apps has remained relatively stagnant, and downloads have declined this year. Whether that's because these newer, vibe-coded apps are of lower quality, or because the avalanche of new apps makes discoverability more difficult, associate professor Mert Demirer, researching the surge in AI-coded software, said one thing is certain: "No one is really using them."

Senior lecturer Shira Springer joined "Here and Now" to discuss why Game 6 of the WNBA Finals was played at the odd time of 12:30 p.m. on Thursday due to stadium scheduling problems, and what it says about women's basketball.

Distinguished senior lecturer Robert C. Pozen wrote: "The Securities and Exchange Commission should listen to the overwhelming submissions from commentators and abandon its proposal to give public companies the option to file semiannual reports rather than quarterly ones. This proposal deprives honest investors of the timely information they need and extends the dark period when dishonest executives can seek to trade on inside information."

The Framingham company Re:Build, co-founded by Miles Arnone and Jeff Wilke (both Leaders for Global Operations '93), said last week that it raised $2.1 billion from investors, bringing total equity invested in the startup to more than $4 billion since its founding in 2020. "What we're trying to do is develop a manufacturing footprint that can be worldwide competitive in high labor-cost environments," Arnone said. "Because frankly, we want to pay people well."

Ifeoluwa Dare-Johnson (Sloan Fellows MBA '26) founded Healthtracka in 2021 to make diagnostics easier in Nigeria. By its $1.5 million pre-seed round, it had handled 7,000 bookings for 5,000 users across seven cities. Dare-Johnson also founded the Banking on Women's Health Conference and published the State of Women's Health Report for Nigeria in 2025.

Felipe Rosas (Sloan Fellows MBA '26) wrote: "The NFL has tried to go global for decades, with mixed results. But 2024 marked something different: After years of testing the market, the league played its first regular-season game in São Paulo. The commitment is real. So is the work still ahead, and how the league pays for it may matter as much as the strategy itself."

Professor Emilio J. Castilla said: "It is important to remind leaders that organizations do not simply recruit or identify talent: they also help to produce it. A person who is already good at the time of hiring can become excellent thanks to the opportunities they are given."