Severe financial crises in developed economies are produced by a combination of three factors: negative surprises that create uncertainty, concentration of macroeconomic risk in leveraged financial institutions and a slow policy response. We propose a policy instrument, Tradable Insurance...

There are striking and terrifying similarities between the sudden failure of a heart and that of a financial system. In the medical literature, the former is referred to as a sudden cardiac arrest (SCA). By analogy, I refer to its financial counterpart as a sudden financial arrest (SFA). In this...

Global risk-off shocks can be highly destabilizing for financial markets and, absent an adequate policy response, may trigger severe recessions. Policy responses were more complex for developed economies with very low interest rates after the Global Financial Crisis (GFC). We document, however,...

Global risk-off shocks can be highly destabilising for financial markets and, absent an adequate policy response, may trigger severe recessions. In Caballero and Kamber (2019), we document that the unconventional policies adopted by the main central banks were effective in containing asset price...

One of the main economic villains before the crisis was the presence of large “global imbalances.” The concern was that the U.S. would experience a sudden stop of capital flows, which would unavoidably drag the world economy into a deep recession. However, when the crisis finally did come,...

«Everything which involves turbulence is enormously more complicated, not just a little bit more complicated, not just one year more schooling, just enormously more complicated». (Mandelbrot interview with PBS News Hour, October 21th, 2008 by SOLMAN P.)

This note argues that stock market intervention during severe liquidity crises should be as broadly accepted as interest rate manipulation, provided that it is conducted in an orderly and transparent fashion. The same applies to asset support more generally, including corporate bonds and...

We present a model of flight to quality episodes that emphasizes systemic risk and the Knightian uncertainty surrounding these episodes. Agents make risk management decisions with incomplete knowledge. They understand their own shocks, but are uncertain of how correlated their shocks are with...

We present a model of flight to quality episodes that emphasizes financial system risk and the Knightian uncertainty surrounding these episodes. In the model, agents are uncertain about the probability distribution of shocks in markets different from theirs, treating such uncertainty as...

We present a model of optimal intervention in a flight to quality episode. The reason for intervention stems from a collective bias in agents' expectations. Agents in the model make risk management decisions with incomplete knowledge. They understand their own shocks, but are uncertain of how...