While the impact of exchange rate changes on economic growth has long been an issue of key importance in international macroeconomics, it has received renewed attention in recent years, owing to weaker growth rates and the debate on "currency wars". However, in spite of its prevalence in the...

I study the composition of international portfolios under collateral constraints and the implied cross-border transmission of shocks. I develop an international portfolio model with these features, in which leveraged investors seek diversification in both assets and secured liabilities and in...

Does distance matter for the volatility of international real and financial transactions? We show that it does, in addition to its well-established relevance for the level of trade. A simple model of trade with endogenous markups shows that demand shocks have a larger impact on trade between...