My Bach podcast with Evan Goldfine
Here is the transcript and also the link to the audio. Forty five minutes or so. Here is the YouTube. We discuss much more than Bach, full of fresh material, plus Evan knows a lot and prepares, definitely recommended. There are a few glitches in the transcript, but you should be able to figure them out.
Personalism and the returns to democracy
Studies of income and regime type typically contrast democracies and autocracies, ignoring heterogeneity in the character of authoritarian regimes. We focus on the consequences of personalist rule, where power is concentrated in an individual or small elite. Extending the dynamic panel strategy of Acemoglu, Naidu, Restrepo, and Robinson (2019), we estimate the differential growth performance of democracies, institutionalized autocracies, and personalist autocracies. Across eight GDP series, eight autocracy codings, and six measures of personalism, we observe a consistent pattern: Whenever an “autocratic penalty” emerges, it is concentrated in personalist regimes. The growth performance of institutionalized dictatorships, in contrast, is statistically indistinguishable from that of democracies. We document evidence that the “personalist penalty” is driven by some combination of low private investment, poor public-goods provision, and conflict. These findings emphasize the analytic payoff of unpacking autocracy and highlight the different incentives facing leaders with narrow and broad bases of power.
That is from a new NBER working paper by Christopher Blattman, Scott Gehlbach, and Zeyang Yu.
Is anyone worth a billion dollars?
That is the topic of my latest Free Press column. Excerpt:
…in recent years they [Meta] have moved into AI in a big way. Over that same time period, the valuation of the company has risen from about $236 billion in November 2022 to almost $2 trillion at the end of this July.
The reasons for share price movements are not always transparent, but it is common consensus that AI investments are a significant reason why Meta is now worth much more. The original metaverse plans did not take off, and Facebook and Instagram are relatively mature products and they have not changed much as of late.
So the market, responding to Meta’s promises about AI, expects that it will deliver on that $2 trillion value. Yet their current Llama models are not state of the art. Meta needs something better and more competitive.
Meta thus has to justify an extra $1.8 trillion in its valuation, which of course they could lose if markets decide they are not up to the task. Spending some billions on top-quality AI personnel is easy to justify when viewed in terms of the value gain Meta already has been reaping.
And it is not just about justifying the current $2 trillion valuation. Meta possibly could be worth more yet. It probably has not escaped their attention that as of late, both Nvidia and Microsoft have had valuations of about $4 trillion. So the possibility of further upside enters the equation as well.
Keep in mind that better AI also will boost the profits Meta can receive from ads on Facebook and Instagram. Click-through rates on ads typically are small, so even a modest increase in targeting ability can mean a lot more profit. Meta does not have to achieve superintelligence to get its money back on these investments; they just need better AI. There is also a plan to put more ads on WhatsApp (currently the user experience is mostly ad-free), and that too can benefit from better AI and better ad targeting.
The general principle is that top talent is typically undervalued, if only because of egalitarian norms in pay structures.
Markets in everything, Indian fake wedding edition
What comes to mind when you think of a big fat Indian wedding?
Dazzling lights, glittering outfits, Bollywood hits, a lavish spread of food and an atmosphere soaked in celebration. Everything feels extravagant, emotional and larger than life.
Now imagine all of that without the bride and groom. No pheras (a Hindu marriage ritual where the couple takes seven rounds around a sacred fire), no relatives, no tearful farewells. Just the party.
Welcome to the world of fake weddings – a rising trend in Indian cities where people gather to enjoy the wedding party, minus the actual marriage.
These ticketed events, organised by hotels, clubs and companies, are designed purely for fun and promise to offer the full experience of a wedding party without any stress, rituals or responsibilities. Simply put, it’s a wedding-themed party night…
Ticket prices typically start at around 1,500 rupees ($17; £13) and can go up to 15,000 rupees or more, depending on the venue and facilities. Shivangi and her friends paid 10,000 rupees per couple to attend.
Here is more from the BBC, and thanks to Rich Dewey for the pointer.
GPT-5, a short and enthusiastic review
I am a big fan, as on my topics of interest it does much better than o3, and that is saying something. It is also lightning fast, even for complex queries of economics, history, and ideas.
One of the most impressive features is its uncanny sense of what you might want to ask next. And it has a good sense for when to give you a (sometimes interactive!) chart or diagram. It is a much better writer than o3.
I have had early access, and love to just keep on asking it, asking it, asking it questions. Today I was asking about Irish coinage disputes from 1724 (Swift) and now about different kinds of Buddhism and their historical roots. It was very accurate on cuisine in northern Ghana.
It is the best learning tool I have. Furthermore, it feels fun.
Here is a review from Ethan Mollick.
Thursday assorted links
The consumer surplus from AI
Our research, with Felix Eggers, widens the lens and finds that Americans already enjoyed roughly $97 billion in “consumer surplus” from generative AI tools in 2024 alone. Consumer surplus—the difference between the maximum a consumer is willing to pay for a good or service and its actual price—is a more direct measure of economic well-being than GDP. Generative AI’s $97 billion in consumer surplus dwarfs the roughly $7 billion in U.S. revenue recorded by OpenAI, Microsoft, Anthropic and Google from their generative AI offerings last year. It doesn’t appear in GDP because most of the benefit accrues to users rather than the companies.
That is from Avinash Collis and Erik Brynjolfsson in the WSJ.
My entertaining Conversation with Annie Jacobsen
Here is the audio, video, and transcript. Here is part of the episode summary:
Tyler and Annie explore whether we should be more afraid of nuclear weapons or if fear itself raises the risks, who should advise presidents during the six-minute decision window, whether moving toward disarmament makes us safer or more vulnerable, what Thomas Schelling really meant about nuclear war and rational actors, the probability that America would retaliate after a nuclear attack, the chances of intercepting a single incoming ICBM, why missile defense systems can’t replicate Israel’s Iron Dome success, how Pakistan-India nuclear tensions could escalate, why she’s surprised domestic drone attacks haven’t happened yet, her reporting on JFK assassination mysteries and deathbed phone calls, her views on UFOs and the dark human experiments at Area 51, what motivates intelligence community operators, her encounters with Uri Geller and CIA psychic research, what she’s working on next, and more.
Excerpt:
JACOBSEN: I quote him in the notes of my book, and this is perhaps the only regret I have in the entire book, that I put this quote from Schelling in the notes rather than in the text. Maybe it’s more interesting for your listeners if we drill down on this than the big platitudes of, “Do more nuclear weapons make us more safe?” It goes like this. This was Schelling in an interview with WGBH Radio in 1986 in Boston.
He says, “The problem with applying game theory to nuclear war is that nuclear war, by its very nature, does not involve rational men. It can’t. What sane person would be willing to kill hundreds of millions of people, ruin the earth, and end modern civilization in order to make somebody called the enemy doesn’t win first?”
COWEN: But Schelling did favor nuclear weapons. That was his dark sense of humor, I would say.
JACOBSEN: You think what I just read was his sense of humor?
COWEN: Absolutely.
JACOBSEN: I believe it was a man in his elder years coming to the conclusion that nuclear war is insane, which is the fundamental premise that I make in the book.
COWEN: You can hold both views. It is insane, but it might be the better insanity of the ones available to us.
JACOBSEN: Yes. From my take, he, like so many others that I have interviewed, because, for some reason — call it fate and circumstance — I have spent my career interviewing men in their 80s and 90s, who are defense officials who spent their entire life making war or preventing war. I watch them share with me their reflections in that third act of their life, which are decidedly different — in their own words — than those that they would have made as a younger man.
I find that fascinating, and that’s my takeaway from the Schelling quote, that he came to terms with the fact that intellectualizing game theory — like von Neumann, who never got to his old age — is madness.
COWEN: Let’s say that Russia or China, by mistake, did a full-scale launch toward the United States, and they couldn’t call the things back, and we’re in that six-minute window, or whatever it would be with hypersonics. What do you think is the probability that we would do a full-scale launch back?
…COWEN: The word madness doesn’t have much force with me. My life is a lot of different kinds of madness. I’ve heard people say marriage is madness. A lot of social conventions seem to me to be madness.
The question is getting the least harmful form of madness out there. Then, I’m not convinced that those who wish to disarm have really made their case. Certainly, saying nuclear war is madness doesn’t persuade me. If anything, if enough people think it’s madness, we won’t get it, and it’s fine to have the nuclear weapons.
A different and quite stimulating episode.
My talk at DeepMind
The first part was on what I have changed my mind on, in the time following GPT-4. Then I field questions from the excellent Zhengdong Wang and also from the audience. Here is the link. By the way, this was from very early July, so a few things have changed since then, just fyi.
Wednesday assorted links
1. Daddy Lumba, RIP.
2. How much tax did rich Americans pay in the 1950s? (short video)
3. Creating gold with nuclear fusion (short video).
4. China debt service estimate of the day.
5. She has solved for the equilibrium.
6. OH: “Barring death, in 2029, the queen (consort) of Malaysia will be an Ulsterwoman.”
Did the Minnesota housing reform lower housing costs?
Yes:
In December 2018, Minneapolis became the first U.S. city to eliminate single-family zoning through the Minneapolis 2040 Plan, a landmark reform with a central focus on improving housing affordability. This paper estimates the effect of the Minneapolis 2040 Plan on home values and rental prices. Using a synthetic control approach we find that the reform lowered housing cost growth in the five years following implementation: home prices were 16% to 34% lower, while rents were 17.5% to 34% lower relative to a counterfactual Minneapolis constructed from similar metro areas. Placebo tests document these housing cost trajectories were the lowest of 83 donor cities (p=0.012). The results remain consistent and robust to a series of subset analyses and controls. We explore the possible mechanism of these impacts and find that the reform did not trigger a construction boom or an immediate increase in the housing supply. Instead, the observed price reductions appear to stem from a softening of housing demand, likely driven by altered expectations about the housing market.
That is from a new paper by Helena Gu and David Munro. Via the excellent Kevin Lewis.
The Sri Lankan economic recovery (from my email)
Hi,
I’m a macroconsultant/analyst based in Sri Lanka. Was suddenly reminded of your 2023 MR piece on Sri Lanka – soon after the depth of the crisis locally.
Since then, Sri Lanka has seen what I think to many is a remarkable turnaround on both the macro fundamentals and the social indicators (admittedly data is very divergent on social).
A few specific points on the macro –
– 2 years of twin surpluses (after 70+ years of twin deficits)
– Looks in line to do a 3rd year of twin surpluses alongside 5% growth
– Income tax collections growing 20%+ YoY without any text increases
– 4% of GDP in net government LCY balances vs historic deficits
– Gross capital formation rising dramatically without government capex spending
– Credit recovery without government spending to support private income
– Remittances (possibly cyclical), oil imports (massive distributed solar), and net port services (ME diversion+new capacity) overperforming IMF numbers by 1-2% of GDP
– Net foreign assets of banking system at ~2% of GDP
– Currency appreciated and stable from crisis peaks
– Inflation averaging 0% 3 years after crisis (+ energy driven deflation spots)
TC again: thanks to Chayu Damsinghe from Frontier Research. A true reversal of fortune, at least for the time being…
Peter Temin, RIP…
Alas…one of the greats in economic history…
Solve for the equilibrium
The title of the paper is “Terrorism and Voting: The Rise of Right-Wing Populism in Germany.” Here is the abstract:
We document that right-wing terrorism leads to significant increases in vote share for the right-wing, populist AfD (Alternative fur Deutschland) party in Germany. To identify causal effects, we exploit quasi-random variation between successful and failed attacks across municipalities. Using the SOEP, a longitudinal panel of individuals, we find successful terror leads individuals to prefer the AfD and worry about migration. Political parties—the AfD in particular—adjust their messaging in election manifestos in response to terror. Overall, and in contrast to previous work, we find terrorism is consequential to the rise of right-wing populism in a Western, multiparty democratic system.
Note that is “right-wing terrorism,” not Islamic terrorism. The piece is by Navid Sabet, Marius Liebald, and Guido Friebel.