The onset of the US credit crisis in 2008, and its rapid globalization induced the FED to extend unprecedented swap-lines of 30 billion dollars to four emerging markets, and the proliferation of other cross-countries selective swap arrangements. This paper explores the logic for these...

This paper evaluates the impact of international reserves, terms of trade shocks and capital flows on the real exchange rate (REER). We observe that international reserves cushions the impact of TOT shocks on the REER, and that this effect is important for developing but not for industrial...

We show that the when one takes into account the global equilibrium ramifications of an unwinding of the US current account deficit, currently estimated at 5.4% of GDP, the potential collapse of the dollar becomes considerably larger--more than 50% larger--than our previous estimates (Obstfeld...

We outline the case for supporting self-insurance by imposing a tax on external borrowing in a model of an emerging market. Entrepreneurs finance tangible investments via bank intermediation of foreign borrowing, exposing the economy to negative fire-sale externalities at times of deleveraging;...

Gross stocks of foreign assets have increased rapidly relative to national outputs since 1990, and the short-run capital gains and losses on those assets can amount to significant fractions of GDP. These fluctuations in asset values render the national income and product account measure of the...

Over the past decade the US has experienced widening current account deficits and a steady deterioration of its net foreign asset position. During the second half of the 1990s, this deterioration was fueled by foreign investment in a booming US stock market. During the first half of the 2000s,...

This paper is structured in three parts. The first part outlines the methodological steps, involving both theoretical and empirical work, for assessing whether an observed allocation of resources across countries is efficient. The second part applies the methodology to the long-run allocation of...

One plausible mechanism through which financial market shocks may propagate across countries is through the effect of past gains and losses on investors' risk aversion. The paper first presents a simple model examining how heterogeneous changes in investors' risk aversion affects portfolio...

Openness to trade is one factor that has been identified as determining whether a country is prone to sudden stops in capital inflow, currency crashes, or severe recessions. Some believe that openness raises vulnerability to foreign shocks, while others believe that it makes adjustment to crises...

Can allowing foreign participation in the banking sector increase real output, despite the imperfectly competitive nature of the industry? Using a new model of heterogeneous, imperfectly competitive lenders and a simple search process, we show how endogenous markups (the net interest margin...