Reflexivity in Credit Markets

Robin  Greenwood; Samuel G. Hanson; Lawrence J. Jin

Working Paper | 2019

Reflexivity in Credit Markets

by Robin Greenwood, Samuel G. Hanson and Lawrence J. Jin

Abstract

Reflexivity is the idea that investors' biased beliefs affect market outcomes, and that market outcomes in turn affect investors' beliefs. We develop a behavioral model of the credit cycle featuring such a two-way feedback loop. In our model, investors form beliefs about firms' creditworthiness, in part by extrapolating past default rates. Investor beliefs influence firms' actual creditworthiness because firms that can refinance maturing debt on favorable terms are less likely to default in the short run—even if fundamentals do not justify investors' generosity. Our model is able to match many features of credit booms and busts, including the imperfect synchronization of credit cycles with the real economy, the negative relationship between past credit growth and the future return on risky bonds, and "calm before the storm" periods in which firm fundamentals have deteriorated but the credit market has not yet turned.

Keywords: reflexivity; Attitudes; Financial Markets; Forecasting and Prediction; Investment; Credit;

Language: English

Format: Print

45 pages

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Citation:

Greenwood, Robin, Samuel G. Hanson, and Lawrence J. Jin. "Reflexivity in Credit Markets." NBER Working Paper Series, No. 25747, April 2019.

Using historical data on post-war financial crises around the world, we show that crises are substantially predictable. The combination of rapid credit and asset price growth over the prior three years, whether in the nonfinancial business or the household sector, is associated with about a 40% probability of entering a financial crisis within the next three years. This compares with a roughly 7% probability in normal times, when neither credit nor asset price growth has been elevated. Our evidence cuts against the view that financial crises are unpredictable “bolts from the sky” and points toward the Kindleberger-Minsky view that crises are the byproduct of predictable, boom-bust credit cycles. The predictability we document favors macro-financial policies that “lean against the wind” of credit market booms.

Drawing on lessons from the 2007–2009 Global Financial Crisis (GFC) and a simple conceptual framework, we examine the response of U.S. bank regulators to the COVID-19 pandemic. We argue that the current regulatory strategy of “watchful waiting”—the same strategy that was used during the early stages of the GFC—poses unnecessary risks to the financial system and broader U.S. economy. Instead, promoting an early recapitalization of the banking system, by stopping dividends and by encouraging new equity issues, would be a more prudent way to manage the vulnerabilities the pandemic has created. We close by suggesting additional measures that we believe regulators should take in both the short and long run.

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Reflexivity in Credit Markets

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