The relationship between exchange rates and international trade: a literature review

What is it about?

This paper surveys a wide body of economic literature on the relationship between currencies and trade. Specifically, 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 (e.g. the prevalence of small firms), 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.

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Why is it important?

The literature on this topic is abundant and it is important to take stock of the overall state of the thinking on it as policy discussions on the impact of exchange rates volatility and misalignment on trade flows are recurrent, particularly when it comes to the major trade players.