Interest and Prices: Foundations of a Theory of Monetary Policy

We propose a dynamic general equilibrium model of exchange rate determination that accounts for all major exchange rate puzzles, including Meese-Rogoff, Backus-Smith, purchasing power parity, and u...

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Exchange Rate Disconnect in General Equilibrium

Probably about a quarter of the world’s foreign exchange reserves are denominated in euros and the euro appears to have gained importance as a reserve currency in recent years.

The dollar is the world’s pre-eminent anchor currency; the euro is a regionally important anchor currency.

The euro has made limited progress as a vehicle currency; the dollar 
remains dominant.

The dollar is the most important currency for invoicing, but the euro is now used in some transactions in some new EU member countries.

The euro is likely to remain important as a reserve currency, but is 
unlikely to usurp the dollar’s role as an anchor currency, a vehicle currency or as a unit of account in the foreseeable future.

The international role of the Euro

A major challenge for monetary policy has been predicting how exchange rate movements will impact inflation. We propose a new focus: incorporating the underlying shocks that cause exchange rate fluctuations when evaluating how these fluctuations ‘pass through’ into import and consumer prices. We show that in a standard open-economy model the relationship between exchange rates and prices depends on the shocks which cause the exchange rate to move. Then we develop an SVAR framework for a small open economy that relies on both short-run and long-run identification restrictions consistent with our theoretical model. Applying this framework to the United Kingdom, we find that the response of both import and consumer prices to exchange rate fluctuations depends on what caused the fluctuations. For example, exchange rate pass-through is relatively large in response to domestic monetary policy shocks, but smaller in response to domestic demand shocks. This framework helps explain why pass-through can change over time, including why sterling’s post-crisis depreciation caused a sharper increase in prices than expected and sterling’s recent appreciation has had a more muted effect.

The shocks matter: improving our estimates of exchange rate pass-through

Exchange rate fluctuations could influence economic activity not only via the standard trade channel, but also through a financial channel, which operates through the impact of exchange rate fluctuations on borrowers’ balance sheets and lenders’ risk-taking capacity. This paper explores the “triangular” relationship between (1) the strength of the US dollar, (2) cross-border bank flows and (3) real investment. We conduct two sets of empirical exercises—a macro (country-level) study and a micro (firm-level) study. We find that a stronger dollar is associated with lower growth in dollar-denominated cross-border bank flows and lower real investment in emerging market economies. An important policy implication of our findings is that a stronger US dollar has real macroeconomic effects that go in the opposite direction to the standard trade channel.

The Dollar Exchange Rate as a Global Risk Factor: Evidence from Investment

Author(s): Gopinath, G; Boz, E; Casas, C; Diez, FJ; Gourinchas, PO; Plagborg-Moller, M | Abstract: We propose a “dominant currency paradigm” with three key features: dominant currency pricing, pricing complementarities, and imported inputs in production. We test this paradigm using a new dataset of bilateral price and volume indices for more than 2,500 country pairs that covers 91 percent of world trade, as well as detailed firm-product-country data for Colombian exports and imports. In strong support of the paradigm we find that (i) noncommodities terms-of-trade are uncorrelated with exchange rates; (ii) the dollar exchange rate quantitatively dominates the bilateral exchange rate in price pass-through and trade elasticity regressions, and this effect is increasing in the share of imports invoiced in dollars; (iii) US import volumes are significantly less sensitive to bilateral exchange rates, compared to other countries’ imports; (iv) a 1 percent US dollar appreciation against all other currencies predicts a 0.6 percent decline within a year in the volume of total trade between countries in the rest of the world, controlling for the global business cycle. We characterize the transmission of, and spillovers from, monetary policy shocks in this environment.

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Dominant Currency Paradigm

Most trade is invoiced in very few currencies. Despite this, the Mundell-Fleming benchmark and its variants focus on pricing in the producer’s currency or in local currency. We model instead a ‘dominant currency paradigm’ for small open economies characterized by three features: pricing in a dominant currency; pricing complementarities, and imported input use in production. Under this paradigm: (a) the terms-of-trade is stable; (b) dominant currency exchange rate pass-through into export and import prices is high regardless of destination or origin of goods; (c) exchange rate pass-through of non-dominant currencies is small; (d) expenditure switching occurs mostly via imports, driven by the dollar exchange rate while exports respond weakly, if at all; (e) strengthening of the dominant currency relative to non-dominant ones can negatively impact global trade; (f) optimal monetary policy targets deviations from the law of one price arising from dominant currency fluctuations, in addition to the inflation and output gap. Using data from Colombia we document strong support for the dominant currency paradigm.

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Dominant Currency Paradigm: A New Model for Small Open Economies

This paper presents the most comprehensive and up-to-date panel data set of invoicing currencies in global trade. It provides data on the shares of exports and imports invoiced in US dollars, euros, and other currencies for more than 100 countries since 1990. The evidence from these data confirms findings from earlier research regarding the globally dominant role of the US dollar in invoicing – despite the comparatively smaller role of the US in global trade – and the overall stability of invoicing currency patterns. But the evidence also points to several novel stylised facts. First, both the US dollar and the euro have been increasingly used for invoicing even as the share of global trade accounted for by the US and the euro area has declined. Second, the euro is used as a vehicle currency in parts of Africa, and some European countries have seen significant shifts toward euro invoicing. And third, as suggested by the dominant currency paradigm, countries invoicing more in US dollars (euros) tend to experience greater US dollar (euro) exchange rate pass-through to their import prices; also, their trade volumes are more sensitive to fluctuations in these exchange rates.

Camila Casas

Papers

Dominant Currency Paradigm

Dominant Currency Paradigm: A New Model for Small Open Economies

Patterns in Invoicing Currency in Global Trade

Industry heterogeneity and exchange rate pass-through

Patterns of Invoicing Currency in Global Trade: New Evidence