Accounting for the pervasive evidence of limited international risk sharing is an important hurdle for open-economy models, especially when these are adopted in the analysis of policy trade-offs likely to be affected by imperfections in financial markets. Key to the literature is the evidence,...

In mid-2008, the real effective exchange rate of the dollar was close to its minimum level for the past 4 decades. At the same time, however, the U.S. trade and current account deficits remain large and, absent a significant correction in coming years, would contribute to a further accumulation...

Using vector autoregressions on U.S. time series relative to an aggregate of industrialized countries, this paper provides new evidence on the dynamic effects of government spending and technology shocks on the real exchange rate and the terms of trade. To achieve identification, we derive...

This paper analyses the welfare implications of international spillovers related to productivity gains, changes in market size, or government spending. We introduce trade costs and endogenous varieties in a two-country general-equilibrium model with monopolistic competition, drawing a...

The relationship between international payments and the real exchange rate - the ‘transfer problem’ - is one of the classic questions in international economics. In this paper we use cross-country data on real exchange rates and a newly constructed data set on countries’ net external...

We evaluate the quantitative effects of introducing costs of transporation into an international trade model. We model these costs through the introduction of international transportation services sector. Costs of transportation have substantial long-run effects on welfare and may impact on the...

We study how credit supply shocks in the US, the euro area and Japan are transmitted to other economies. We use the recently-developed GVAR approach to model financial variables jointly with macroeconomic variables in 33 countries for the period 1983-2009. We experiment with inter-country links...

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...

Standard macro models cannot explain why real exchange rates are volatile and disconnected from macro aggregates. Recent research argues that models with persistent growth rate shocks and recursive preferences can solve that puzzle. I show that this result is highly sensitive to the structure of...