Vertical Trade,Exchange Rate Pass-Through,and the Exchange Rate Regime

We compare the welfare of different combinations of monetary and currency policies in an open-economy macroeconomic model that incorporates two important features of many small open economies: a high level of vertical international trade and a high degree of exchange rate pass-through. In this environment, a small economy prefers a fixed exchange rate regime over a flexible regime, while the larger economy prefers a flexible exchange rate regime. There are two main causes underlying our results. First, in the presence of sticky prices, relative prices adjust through changes in the exchange rate. Multiple stages of production and trade make it more difficult for one exchange rate to balance the whole economy by adjusting several relative prices simultaneously throughout the vertical chain of production and trade. More specifically, there is a tradeoff between delivering an efficient relative price between home and foreign final goods and delivering an efficient relative price between home and foreign intermediate goods. Second, because the small economy faces a high degree of exchange rate pass-through under a flexible regime, it suffers from a lack of efficient relative prices in vertical trade. The larger economy, however, does not face this problem because its level of exchange rate pass-through is low.