During extreme financial crises, all of a sudden, the financial world that was once rife with profit opportunities for financial institutions (banks, for short), becomes exceedingly complex. Confusion and uncertainty follow, ravaging financial markets and triggering massive flight-to-quality...

Flight to quality episodes involve a combination of extreme risk- or uncertainty-aversion, weaknesses in the balance sheets of key financial intermediaries, and strategic or speculative behavior, that increases credit spreads on all but the safest and most liquid assets. Unlike previous...

This paper provides a stylized model of the workings of a global economy where one of its key driving factors is economic agents' continuous struggle to find assets in which to park financial resources. This struggle naturally comes with euphoria and disappointments, as many of the "parking...

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...

The conventional wisdom is that politicians' rent seeking motives increase public debt and deficit. This is because myopic politicians face political risk and prefer to extract political rents as early as possible. An implication of this argument is that governments will under-save during a...

We provide a continuous-time "risk-centric" representation of the New Keynesian model, which we use to analyze the interactions between asset prices, financial speculation, and macroeconomic outcomes when output is determined by aggregate demand. In principle, interest rate policy is highly...

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...

In this paper we present a model of fire sales and market breakdowns, and of the financial amplification mechanism that follows from them. The distinctive feature of our model is the central role played by endogenous uncertainty. As conditions deteriorate, more “banks” within the financial...

The classical Heckscher-Ohlin-Mundell paradigm states that trade and capital mobility are substitutes, in the sense that trade integration reduces the incentives for capital to flow to capital-scarce countries. In this paper we show that in a world with heterogeneous financial development, the...