Professor at @MITSloan working on finance, macroeconomics, international economics, economic history, and other fun stuff

Cambridge, MA
New paper on bank runs with Correia and Luck: "Bank Runs With and Without Bank Failure" Questions: - What are the determinants of runs? - When do bank runs result in bank failure? - Can runs trigger the failure of healthy banks and amplify small shocks into large crises? - Are runs themselves the initial cause of financial distress or are they a symptom of deeper fundamental solvency problems in the financial system? What we do: - Apply LLMs to historical newspapers to uncover over 4,000 runs on individual banks in the pre-FDIC US banking system from 1863 to 1934. Capture the most famous runs (Bank of the US - Merge data on runs and other bank-level events discussed in newspapers (suspensions, failures) to bank-level fundamentals (harder than it sounds!) What we find: (1) Runs are considerably more likely in weak banks, but can also occur in strong banks, especially in response to negative news about the real economy or the broader banking system. (2) However, runs typically only result in failure for banks with weak fundamentals [see figure below]. Strong banks survive runs through various mechanisms, including interbank cooperation, equity injections, public signals of strength, and suspension of convertibility (3) At the local level, poor fundamentals necessary for runs to translate into large declines in lending. Moreover, bank failures (with and without runs) translate into substantially larger declines in deposits and lending than runs without failures. Overall takeaways: - Poor fundamentals are key for whether runs pass through into failure and have severe consequences for the broader economy. - The findings temper the view that small shocks can result in large jumps to bad equilibria via runs on demandable debt. Full paper here. Comments welcome. Given the methodology and evolving AI tools, we expect to make refinements to the runs database over time. Any input is welcome. static1.squarespace.com/stat…
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Emil Verner retweeted
I think Ezra (inadvertently) proves Jenson’s point here. The reason financial firms behaved so irresponsibly pre-2008 is not because liability incentives failed to check them. It is because we diluted those incentives for decades, through growing implicit & explicit guarantees.
Tomorrow on the show: @JensenHuang, the CEO of NVIDIA, who thinks A.I. fear is getting way out of hand.
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India produced 11% of the world’s tomatoes in 2022–24, but accounted for just 0.2% of processed tomato exports by volume. Across many crops, agricultural abundance has not translated into processing strength. What needs to change? 1/8
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Emil Verner retweeted
In case you're excited about labor economics and are considering a predoc: please come and work with my wonderful colleagues and me at the @Princeton @PrincetonEcon Industrial Relations Section. Please spread the word! 🙏👇 irs.princeton.edu/senior-res…
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Emil Verner retweeted
there is none. my gut feeling - and its not much more than that now - is that anthropic and openai will go belly up, and the current period will join tulips, south sea, 1929 and dotcom in the history books...
Even with 77% annual revenue growth, Open AI expects $ 278bn (!) of cumulative negative free cash flow from 26 to 30. Big part is compute and infrastructure spending. What is the path to profitability when these models are becoming commoditized? ft.com/content/6011d061-eee3…
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Even with 77% annual revenue growth, Open AI expects $ 278bn (!) of cumulative negative free cash flow from 26 to 30. Big part is compute and infrastructure spending. What is the path to profitability when these models are becoming commoditized? ft.com/content/6011d061-eee3…
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China’s financial system is going through what Baron, Xiong, and I termed a “quiet crisis”—a banking crisis where panic is forestalled by policy backstops, but where unrecognized losses and undercapitalization impairs the banking sector’s ability to service the economy. No salient panic, but costly and more protracted because of the lack of market discipline. wsj.com/articles/china-can-a…
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It’s semantics, but I would still refer to this as a financial crisis. For the nerds, it’s a crisis in the Holmstrom Tirole sense. Here’s an ungated link to the paper: wxiong.mycpanel.princeton.ed…
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Agree... the Nikole Hannah-Jones piece is a bizarre combination of empirical naivete (bordering on arrogance) about how one family could improve an underperforming school, with a willingness to put social ideals ahead of your own child. More broadly, a striking example of the limits of a worldview that relies on individual self-sacrifice to solve a structural collective action problem.
Blown away reading the Nikole Hannah-Jones piece on her daughter. I know it's been discussed to death already but so many elements are jawdropping - the credulity about the reality of poor schools, the willingness to deploy a child as an ideological experiment (1/2)
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True, but financial fragility was building through large capital inflows and debt growth, in part a consequence of the Dawes Plan that made reparations junior. Contemporaries like Hjalmar Schacht noted the fragility and speculative investment. 1/
As of 1928, Weimar Germany had ended inflation and renegotiated reparations payments with the allies. The economy was growing, power alternated between democratic parties, and the Nazis were a crank fringe movement. slowboring.com/p/how-to-stop…
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The hyperinflation likely also contributed to the severity of the Depression in Germany and the rise of the Nazis in subtle ways (eroding bank capitalization, wiping out middle class, influencing Brüning's policies...). For what it’s worth, Brüning himself argued that this channel was important (though you could say this was an excuse). This is not to say that everything was inevitable, but the contingencies were related to fragilities going back to WWI and the 20s. 2/
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Wrote about this here: nitter.net/EmilVerner/status/1750… /end
What was the connection between the German hyperinflation and Nazism? This is a very complex issue, but I think it’s probably too strong to say that the hyperinflation did not play a role in the rise of Nazism. A short thread 1/
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Always show the treatment/control averages, not just the dynamic DD estimates! Example #104
You need to read these "negative wage/employment effects of AI" papers very carefully. Here are two ways a paper can present the same result. Is this a decline in wages for AI-exposed workers? imho i would not conclude AI-exposed workers are worse off.
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On supervision of AI, there is a long history of precedents. A few quick notes... After a series of steamship explosions (a new exciting technology that could also blow up and kill many people), Congress began requiring steamship inspections in the 1830s. 1/
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Moreover, like in other industries, supervision is a complement to regulation because it helps ensure compliance with laws and regulations. end/
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PS: Much of what I learned on the history of banking supervision is from the excellent recent book “Private Finance, Public Power” by Conti-Brown and Vanatta, though any mistakes here are my own.
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