It has long been recognized that business cycle comovement is greater between countries that trade intensively with one another. Surprisingly, no one has previously examined the relationship between trade intensity and comovement of shocks to the trend level of output. Contrary to the result for...

This paper is a statistical analysis of the manner in which the Federal Reserve determines the level of the Federal funds rate target, one of the most publicized and anticipated economic indicators in the financial world. The analysis presents two econometric challenges: (1) changes in the...

Using a novel dataset on changes in capital controls and currency-based prudential measures in 17 major emerging market economies (EMEs) over the period 2001-2011, this paper provides new evidence on domestic and spillover effects of capital controls before and after the global financial crisis....

Since the 2008 global financial crisis, and after decades of relative neglect, the importance of the financial system and its episodic crises as drivers of macroeconomic outcomes has attracted fresh scrutiny from academics, policy makers, and practitioners. Theoretical advances are following a...

We provide a theory of the determination of exchange rates based on capital flows in imperfect financial markets. Capital flows drive exchange rates by altering the balance sheets of financiers that bear the risks resulting from international imbalances in the demand for financial assets. Such...

This paper provides a theoretical framework for quantitatively investigating the optimal accumulation of international reserves as a hedge against rollover risk. We study a dynamic model of endogenous default in which the government faces a tradeoff between the insurance benefits of reserves and...

This paper analyzes the case for the international coordination of macroprudential policies in the context of a simple theoretical framework. Both domestic macroprudential policies and prudential capital controls have international spillovers through their impact on capital flows. The...

What are the macroeconomic effects of tax adjustments in response to large public debt shocks in highly integrated economies? The answer from standard closed-economy models is deceptive, because they underestimate the elasticity of capital tax revenues and ignore cross-country spillovers of tax...

Fiat money contains the seeds of its own destruction. It has no intrinsic value and, yet, it can be exchanged for valuable consumption and production goods. As Hahn (1965) shows, this situation puts fiat money's market value or liquidity premium at the brink of collapse. In this paper I will...

The elasticity of substitution between goods from different countries---the Armington elasticity---is important for many questions in international economics, but its magnitude is subject to debate: the "macro" elasticity between home and import goods is often found to be smaller than the...