The Relationship Between Exchange Rates and International Trade

This paper surveys a wide body of economic literature on the relationship between currencies and trade. Two main issues are investigated: the impact on international trade of exchange rate volatility and of currency misalignments. On average, exchange rate volatility has a negative (even if not large) impact on trade flows. The extent of this effect depends on a number of factors, including the existence of hedging instruments, the structure of production, and the degree of economic integration across countries. Exchange rate misalignments are predicted to have short-run effects in models with price rigidities, but the exact impact depends on a number of features, such as the pricing strategy of firms engaging in international trade and the importance of global production networks. This effect is predicted to disappear in the long-run, unless some other distortion characterizes the economy. Empirical results confirm that short-run effects can exist, but their size and persistence over time are not consistent across different studies.