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My Conversation with Andrew Ross Sorkin

2026-02-05 14:08:53

This was great fun for me, here is the audio, video, and transcript.  Here is part of the episode summary:

Tyler and Andrew debate whether those 1929 stock prices were justified, what Fed and policy choices might have prevented the Depression, whether Glass-Steagall was built on a flawed premises, what surprised Andrew most about the 1920s beyond the crash itself, how business leaders then would compare to today’s CEOs, whether US banks should consolidate, how Andrew would reform US banking regulation, what to make of narrow banking proposals and stablecoins, whether retail investors should get access to private equity and venture capital, why sports gambling and new financial regulations won’t make us much safer, how Andrew broke into the New York Times at age 18, how he manages his information diet, what he learned co-creating Billions, what he plans on learning about next, and more.

Excerpt:

COWEN: I have a few general questions about the 1920s. Obviously, you did an enormous amount of work for this book. Putting aside the great crash and the focus of your book, what is it you learned about the 1920s more generally that most surprised you? Because you learn all this collateral information when you write a book like this, right?

SORKIN: So many things. The book turned into a bit of a love letter to New York in terms of the architecture of New York. I don’t think I appreciated just how many buildings went up in New York and how they were constructed and what happened. That fascinated me. I think the story of John Raskob, actually, who was, to me, the Elon Musk of his time, somebody who ran General Motors, became a super influential investor. He was a philosopher king that everybody listened to at every given moment.

He ultimately constructs the Empire State Building, which was probably the equivalent of SpaceX at that time. He had written a paper about creating a five-day workweek back in 1929, November, as all of this is happening. Not because he wanted people to work less and be nice to them, but because he thought there was an economic argument that if people didn’t have to work on Saturdays, more people would buy cars and gardening equipment, and do all sorts of things on the weekends, and buy different outfits and clothing. There were so many little things.

Then, I would argue, actually, his role in taking his fortune — he got involved in politics. He was a Republican turned Democrat. He spent an extraordinary amount of money to secretly try to undermine the reputation of Hoover. I would say to you, today, I actually think that part of the reason that Hoover’s reputation is so dim, even today, is a result of this very influential, wealthy individual in America who spent two years paying off journalists and running this secret campaign to do such a thing. You go back and really read the press and try to understand why some of these views were espoused.

By the way, this was before the crash. He started this campaign effectively in May of 1929, just three months after Hoover took office.

COWEN: It’s striking to me how forgotten Raskob is today. There’s a lesson in there about people who think they’re doing something today that will be remembered in a hundred years’ time. It probably won’t be, even if you’re a big, big deal.

SORKIN: It’s remarkable. He was a very big deal. He famously used to tell everybody, “Everybody ought to be rich.” He was trying to develop, back then, what would have been something akin to one of the first mutual funds, levered mutual funds, in fact, because he also wanted to democratize finance.

COWEN: Let’s say you’re back in New York. It’s the 1920s; you’re you. Other than walking around and looking at buildings, what else would you do back then? I would go to jazz concerts. What would you do?

SORKIN: Oh my goodness. You know what I would do? But I’m a journalista, so you’ll appreciate this.

COWEN: Yes.

SORKIN: I would have been obsessed with magazines. This was really the first real era of magazines and newspapers and the transmission of media, the sort of mass media in this way. I would have been fascinated by radio. I think those things, for me, would have been super exciting.

The truth is, I imagine I would have gotten caught up in the pastime of stock trading. It is true that all these brokerage houses are just emerging everywhere, and people are going to play them as if it’s a pastime. I always wonder whether prohibition played a role in why so many people were speculating because instead of drinking, what did they do? They traded.

Some of the time he spent interviewing me…

The post My Conversation with Andrew Ross Sorkin appeared first on Marginal REVOLUTION.

Regulating a Monopolist without Subsidy

2026-02-05 02:53:35

We study monopoly regulation under asymmetric information about costs when subsidies are infeasible. A monopolist with privately known marginal cost serves a single product market and sets a price. The regulator maximizes a weighted welfare function using unit taxes as sole policy instrument. We identify a sufficient and necessary condition for when laissez-faire is optimal. When intervention is desired, we provide simple sufficient conditions under which the optimal policy is a progressive price cap: prices below a benchmark face no tax, while higher prices are taxed at increasing and potentially prohibitive rates. This policy combines delegation at low prices with taxation at high prices, balancing access, affordability, and profitability. Our results clarify when taxes act as complements to subsidies and when they serve only as imperfect substitutes, illuminating how feasible policy instruments shape optimal regulatory design.

That is from a new paper by Jiaming Wei and Dihan Zou.  Via the excellent Samir Varma.

The post Regulating a Monopolist without Subsidy appeared first on Marginal REVOLUTION.

Now we are getting serious…

2026-02-04 15:39:46

It is about time:

US tech stocks fell sharply on Tuesday as fresh concerns about the impact of AI on software businesses swept across Wall Street.

The tech-heavy Nasdaq Composite fell 1.4 per cent, while the broader S&P 500 was down 0.8 per cent. Markets were dragged lower by large declines for a host of analytics groups following AI company Anthropic’s launch of productivity tools for its Claude Cowork platform that can help automate legal work.

Analytics groups Gartner and S&P Global fell 21 per cent and 11 per cent, respectively, while Intuit and Equifax both declined more than 10 per cent. Moody’s fell 9 per cent and FactSet lost 11 per cent.

A JPMorgan index tracking US software stocks fell 7 per cent, taking its loss this year to 18 per cent.

Here is more from the FT.

The post Now we are getting serious… appeared first on Marginal REVOLUTION.

The economics of hip hop

2026-02-04 14:15:32

In a TED Talk released on Monday, I describe a decadelong effort to measure hip hop’s impact. My research team and I assembled a data set tracking the genre’s diffusion from the late 1980s onward. We compiled exposure measures from virtually every U.S. radio station between 1985 and 2002 and from the Billboard Hot 100 from 2000 through 2024, then digitized station playlists using custom AI tools. The result is a detailed record of what different parts of the country heard in a given year. Using modern text analysis, we examined hundreds of thousands of songs and every word they contained.

We classify hip hop into four broad categories: street, conscious, mainstream and experimental…

Radio data also let us look inside the music. Over the past 40 years, hip-hop lyrics have grown substantially more explicit: profanity, violence and misogynistic language each increased roughly fivefold in our text-based measures, while references to drugs rose by approximately half as much. That growth in lyrical intensity helps explain why hip hop continues to provoke anxiety. But it also sharpens the question that matters most, at least to an economist: Does exposure to these lyrics have measurable effects on people’s lives?

To answer that, we looked at locations with varied hip-hop exposure—some places where it arrived early, others where it arrived later. Hip hop initially reached mass audiences through a subset of black radio stations, often those formatted as “urban contemporary.” Some cities gained early access through those stations. Others didn’t for reasons as mundane as geography, signal reach and local radio history.

That uneven rollout created natural variation in exposure.

Using radio data and decades of census records, we estimated how much hip hop was played on the radio in each county in the U.S. over time. We then tested whether increases in hip-hop penetration were linked to changes in crime—and whether people exposed to more hip hop in their formative years experienced worse outcomes in education, employment, earnings, teen births and single parenthood.

The answer was striking. In our estimates, the effects hovered around zero, sometimes even slightly positive. Places with heavier rap exposure didn’t experience higher crime, lower educational attainment or weaker labor-market outcomes relative to trends elsewhere.

Here is more from Roland Fryer, from the WSJ.  Here is the TED talk.

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