This paper explores the consequences of extremely low real interest rates in a world with integrated but heterogenous capital markets and nominal rigidities. We establish four main results: (i) Liquidity traps spread to the rest of the world through the current account, which we illustrate with...

Empirical evidence shows that observed macroeconomic fundamentals have little explanatory power for nominal exchange rates (the exchange rate determination puzzle). On the other hand, the recent microstructure approach to exchange rates has shown that most exchange rate volatility at short to...

We study how real exchange rate dynamics are affected by monetary policy in dynamic, stochastic, general equilibrium, sticky-price models. Our analytical and quantitative results show that the source of interest rate persistence - policy inertia or persistent policy shocks - is key. In the...

The standard argument for abstracting from capital accumulation in sticky-price macro models is based on their short-run focus: over this horizon, capital does not move much. This argument is more problematic in the context of real exchange rate (RER) dynamics, which are very persistent. In this...

I characterize the global solution to the portfolio problem of two heterogeneous investors with general preferences, in a two-tree, two-good environment. Investors have recursive preferences and a bias in consumption towards a preferred good. The framework highlights the role of the allocation...

I adapt the framework of Sauzet (2021) to an international setting to characterize the global solution to the international portfolio problem in full generality, a long-standing open issue in international finance. In this two-country, two-good environment, investors have recursive preferences...

I study the joint dynamics between the US wealth share, the dollar and the global economy. I uncover three novel stylised facts about these joint dynamics. Firstly, the US wealth share is countercyclical: it falls on impact but subsequently rises over the course of global recessions. Secondly...

The recent political developments in the Middle East have prompted increased scrutiny of the economies of the nations lying in this region. Over the past few months, the financial markets of Middle East and North Africa (MENA) have been affected by the speculations that existed before the war in...

In spite of significant institutional and macroeconomic reforms over the last decade or two, capital flows to developing economies remain highly volatile. In 1996, net private capital flows to emerging markets reached US$230 billions; by 1997 these flows had been cut in half; by 1998 halved...

Emerging economies experience sudden stops in capital inflows. As we have argued in Caballero and Krishnamurthy (2002), having access to monetary policy during these sudden stops is useful, but mostly for quot;insurancequot; rather than for aggregate demand reasons. In this environment, a...