In the Media
A Columbia Economist Explains How the Iran War Could Hurt an Already-Fragile Private Credit Market
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Manufacturing Has Struggled Since ‘Liberation Day’
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How Will Trump’s Supporters React to Seeing School Vouchers Program Increase Chinese Influence?
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Equal Pay Day 2026: The ‘Bonus Gap’ and More Wage Gap Contributors
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The Price of Imported Goods Rose in February, Signaling Inflation Even Before the War
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Research
The Missing Value of Data
Data assets are increasingly vital in modern economies, yet macroeconomic measurement is not well-adapted to capturing their value. Part of the problem is that data is an intangible asset: investments in data are missed in national accounts, and
Does AI cheapen talk? Theory and evidence from global entrepreneurship and hiring
Screening human capital based on signals such as job applications or entrepreneurial pitches is crucial for organizations. Signals are often informative insofar as they require differential knowledge and effort to produce. Generative AI (GAI) complicates screening by lowering the cost of producing impressive signals. We model the informational effects of GAI, showing that applicants' access to GAI can increase—but also decrease—an evaluator's screening mistakes. This result depends on how GAI affects experts' signals compared to non-experts'.
Throwing Curveballs: A Language-Based Model of Curveball Questions in Quarterly Earnings Calls Uncovers their Consequences and Antecedents
In evaluative contexts, evaluatees typically seek to present themselves in a favorable light, while evaluators ask penetrating questions to assess these claims. Here we develop a framework to identify curveball questions: ones that are on-topic yet perplexing (i.e., difficult to predict) relative to past discourse. We develop a language-based measure of curveball questions and apply it to a corpus of quarterly earnings calls.
Market Power and Capital Constraints
We explore how traders' equity capitalization influences asset prices in a framework that accounts for market power. In our model traders with capital constraints engage in transactions in an imperfectly competitive market. We demonstrate that looser capital constraints elevate both asset prices and price impact, which diminishes market liquidity. Using Canadian Treasury auction data, we illustrate how to apply our model to quantify these effects. We estimate the shadow costs of capital constraints by exploiting a temporary policy exemption during 2020-2021.
Monetary Policy without Commitment
This paper studies the implications of central bank credibility for long-run inflation and inflation dynamics. We introduce central bank lack of commitment into a standard non-linear New Keynesian economy with sticky-price monopolistically competitive firms. Inflation is driven by the interaction of lack of commitment and the economic environment. We show that long-run inflation increases following an unanticipated permanent increase in the labor wedge or decrease in the elasticity of substitution across varieties. In the transition, inflation overshoots and then gradually declines.