Real exchange rate fluctuations, endogenous tradability and exchange rate regimes

The real exchange rate is driven by fluctuations of the relative price of traded goods and the relative price of nontraded to traded goods. This study explains the variance decomposition of the real exchange rate using a stochastic dynamic general equilibrium model of comparative advantage with money. Given interest rate shocks, exchange rate stability reduces the covariance between the two relative prices and raises the contribution of the relative price of nontraded to traded goods. Productivity shocks do not alter the covariance across exchange rate regimes and let the relative price of traded goods drive the real exchange rate.     

Modeling exchange rate passthrough after large devaluations

Large devaluations are generally associated with large declines in real exchange rates. We develop a model which embodies two complementary forces that account for the large declines in the real exchange rate that occur in the aftermath of large devaluations. The first force is sticky nontradable-goods prices. The second force is the impact of real shocks that often accompany large devaluations. We argue that sticky nontradable goods prices generally play an important role in explaining post-devaluation movements in real exchange rates. However, real shocks can sometimes be primary drivers of real exchange-rate movements.     

Endogenous tradability and some macroeconomic implications

While nontraded goods play an important role in many open economy macroeconomic models, these models have difficulty explaining the low volatility in the relative price of nontraded goods. In contrast to macroeconomic convention, this paper argues that the share of nontraded goods is endogenous, a time-varying product of macroeconomic shocks and trade costs that are heterogeneous across goods. A simple open economy model demonstrates that trade cost heterogeneity and a time-varying margin of tradedness dramatically reduces the volatility of nontraded prices. This also reduces the ability of real exchange rate adjustments to dampen current account imbalances.     

Exchange Rate Pass‐Through,Domestic Competition,and Inflation: Evidence from the 2005–08 Revaluation of the Renminbi

Import competition from China is pervasive in the sense that for many good categories, the competitive environment that U.S. firms face in these markets is strongly driven by the prices of Chinese imports, and so is their pricing decision. This paper quantifies the effect of the government‐controlled appreciation of the Chinese renminbi vis‐à‐vis the USD from 2005 to 2008 on the prices charged by U.S. domestic producers. In a panel spanning the period from 1994 to 2010 and including up to 519 manufacturing sectors, import price changes of Chinese goods pass into U.S. producer prices at an average rate of 0.7, while import price changes that can be traced back to exchange rate movements of other trade partners only have mild effects on U.S. prices. Further analysis points to the importance of trade integration, variable markups, and demand complementarities on the one side, and to the importance of imported intermediate goods on the other side as drivers of these patterns. Simulations incorporating these microeconomic findings reveal that a substantial revaluation of the renminbi would result in a pronounced increase in aggregate U.S. producer price inflation.     

The Euro Changeover and Its Effects on Price Transparency and Inflation

Despite the expectations of economists that the euro changeover would have no effect on prices, European consumers perceived the opposite. To shed some light on this puzzle, we develop a model of imperfect information in which cheaper goods experience higher price growth after the changeover. Retailers, aware of consumers' difficulties in adopting the new currency, use currency changeovers to increase profits by increasing prices. The lower the price transparency after the changeover, the higher the euro-related inflation. Using data on inflation (Eurostat) and price levels (Economist Intelligence Unit), we show that although the euro changeover did not significantly increase inflation, it nevertheless had a distortionary effect on prices. After the changeover, cheaper goods had higher inflation, and this effect was stronger in countries in which people found dealing with the new currency problematic.     

House Price Booms,Current Account Deficits,and Low Interest Rates

Domestic factors, such as credit and preference shocks, can explain the negative correlation between house prices and the current account in the U.S. and several other countries before the recent crisis. These shocks, however, cannot account for the fall of world real interest rates observed in the data. Expansionary monetary policy shocks in the U.S., coupled with exchange rate pegs to the dollar in emerging economies, are crucial to understanding the evolution of the real interest rate. Yet, monetary policy factors play virtually no role for house prices and the current account.     

Price,output, and exchange rate movements in the open economy

Since the advent of managed floating it has come to be accepted as a stylized fact that short-run deviations from purchasing power parity are both substantial and persistent. Two explanations of these deviations have been advanced in the literature. One emphasizes the role of changes in non-traded goods prices while the other views deviations from purchasing power parity as being due to sticky goods prices and slow adjustment of goods markets. This paper presents yet a third possible explanation of deviations from purchasing power parity — they may be necessary in order to facilitate the relative price changes that are required to maintain equilibrium in the face of unanticipated shocks. In addition, the issue of exchange rate overshooting is addressed. Whereas the sticky price models view exchange rate overshooting and exchange rate volatility as symptoms of some fundamental disequilibrium, the perspective taken here is that these events are, in principle, compatible with a world in which all markets clear continuously.     

External shocks, U.S. monetary policy and macroeconomic fluctuations in emerging markets

Estimated structural VARs show that external shocks are an important source of macroeconomic fluctuations in emerging markets. Furthermore, U.S. monetary policy shocks affect interest rates and the exchange rate in a typical emerging market quickly and strongly. The price level and real output in a typical emerging market respond to U.S. monetary policy shocks by more than the price level and real output in the U.S. itself. These findings are consistent with the idea that “when the U.S. sneezes, emerging markets catch a cold.” At the same time, U.S. monetary policy shocks are not important for emerging markets relative to other kinds of external shocks.     

A fundamental theory of exchange rates and direct currency trades

In this paper we construct a two-country search model to determine the nominal exchange rate between two fiat monies. Our model allows agents to use any currency to trade for goods in all countries. However, search frictions restrict agents’ opportunities for instantaneous arbitrage, and hence make the nominal exchange rate determinate. The nominal exchange rate depends on the two countries’ economic fundamentals, including the stocks and growth rates of the two monies. Direct exchanges between currencies are essential and they imply a nominal exchange rate that is different from the relative price between the two currencies in the goods markets. There are persistent violations of the law of one price and purchasing power parity in equilibrium, despite the fact that prices are perfectly flexible and all goods are tradeable between countries. Nominal and real exchange rates can move together in the steady state in response to money growth shocks.     

International Pricing in a Generalized Model of Ideal Variety

We examine international markups and pricing in a generalized version of an "ideal variety" model. In this model, entry causes crowding in variety space, so that the marginal utility of new varieties falls as market size grows. Crowding is partially offset by income effects, as richer consumers will pay more for varieties closer matched to their ideal types. We show theoretically and confirm empirically that declining marginal utility of new varieties results in: a higher own-price elasticity of demand (and lower prices) in large countries and a lower own-price elasticity of demand (and higher prices) in rich countries. The model is also useful for generating facts from the literature regarding cross-country differences in the rate of variety expansion.     

Exchange Rate Changes and Inflation in Post‐Crisis Asian Economies: Vector Autoregression Analysis of the Exchange Rate Pass‐Through

Macro‐economic consequences of large currency depreciations among the crisis‐hit Asian economies varied from one country to another. Inflation did not soar after the Asian currency crisis of 1997–98 in most crisis‐hit countries except Indonesia where high inflation followed a very large nominal depreciation of the rupiah. The high inflation meant a loss of price competitive advantage, a key for economic recovery from a crisis. This paper examines the pass‐through effects of exchange rate changes on the domestic prices in the East Asian economies using a vector autoregression analysis. The main results are as follows: (i) the degree of exchange rate pass‐through to import prices was quite high in the crisis‐hit economies; (ii) the pass‐through to Consumer Price Index (CPI) was generally low, with a notable exception of Indonesia; and (iii) in Indonesia, both the impulse response of monetary policy variables to exchange rate shocks and that of CPI to monetary policy shocks were positive, large, and statistically significant. Thus, Indonesia's accommodative monetary policy, coupled with the high degree of CPI responsiveness to exchange rate changes was an important factor in the inflation‐depreciation spiral in the wake of the currency crisis.     

How much should inflation targeters care about the exchange rate?

A DSGE model is used to examine whether including the exchange rate in the central bank’s policy rule can improve economic performance. Smoothing the exchange rate helps both financially-robust economies and financially-vulnerable emerging economies in handling risk premium shocks and, given a small weight placed on the exchange rate, the effects on inflation and output volatility are minimal with demand and cost-push shocks. Financially-vulnerable economies are especially likely to benefit from exchange rate smoothing due to perverse movements of the exchange rate they experience when hit by demand shocks and being more prone to risk premium shocks.     

Expenditure switching versus real exchange rate stabilization: Competing objectives for exchange rate policy

This paper develops a view of exchange rate policy as a trade-off between the desire to smooth fluctuations in real exchange rates so as to reduce distortions in consumption allocations, and the need to allow flexibility in the nominal exchange rate so as to facilitate terms of trade adjustment. We show that optimal nominal exchange rate volatility will reflect these competing objectives. The key determinants of how much the exchange rate should respond to shocks will depend on the extent and source of price stickiness, the elasticity of substitution between home and foreign goods, and the amount of home bias in production. Quantitatively, we find the optimal exchange rate volatility should be significantly less than would be inferred based solely on terms of trade considerations. Moreover, we find that the relationship between price stickiness and optimal exchange rate volatility may be non-monotonic.     

U.S. real exchange rate fluctuations and relative price fluctuations

Traditional theory attributes fluctuations in real exchange rates to changes in the relative price of nontraded goods. This paper studies the relation between the United States’ bilateral real exchange rate and the associated bilateral relative price of nontraded goods for five of its most important trade relationships. We find that this relation depends crucially on the choice of price series used to measure relative prices and on the choice of trade partner. The relation is stronger when we measure relative prices using producer prices rather than consumer prices. The relation is stronger the more important is the trade relationship between the United States and a trade partner. Even in cases where there is a strong relation between the real exchange rate and the relative price of nontraded goods, however, a large fraction of real exchange rate fluctuations is due to deviations from the law of one price for traded goods.     

International competition and exchange rate shocks: a cross-country industry analysis of stock returns

This article systematically examines the importance of exchangerate movements and industry competition for stock returns. Commonshocks to industries across countries are more important thancompetitive shocks due to changes in exchange rates. Weeklyexchange rate shocks explain almost nothing of the relativeperformance of industries. Using returns measured over longerhorizons, the importance of exchange rate shocks increases slightlyand the importance of industry common shocks increases moresubstantially. Both industry and exchange rate shocks are moreimportant for industries that produce internationally tradedgoods, but the importance of these shocks is economically smallfor these industries as well.     

Capital Controls and the International Transmission of U.S. Money Shocks

We assess whether capital controls effectively insulate countries from U.S. monetary shocks, examining a large range of country experiences in a unified estimation framework. We estimate the effect of identified U.S. monetary shocks on the exchange rate and foreign country interest rates, and test whether countries with less open capital accounts exhibit systematically smaller responses. We find essentially no evidence of this. Other country factors such as the exchange rate regime or degree of dollarization explain more of the cross-country differences in responses. The significant differences in responses we do find are more pronounced at short horizons.     

Estimating exchange rate responsiveness to shocks

The goal of this paper is to examine the importance of permanent and transitory shocks using a more efficient trend-cycle decomposition of the real exchange rate series. Our main contribution is that in measuring the impact of shocks, we not only impose common trend restrictions but also common cycle restrictions. We later confirm, through a post sample forecasting exercise, the efficiency gains from imposing common cycle restrictions. Our results indicate that permanent shocks are responsible for the bulk of the real exchange rate variations for Japan, Italy, Germany, France, and the UK vis-à-vis the US dollar over short horizons. For Canada, however, transitory shocks are dominant over the short horizon. In sum, while for Japan, France, and Italy, around 15% of the variation in real exchange rate is due to transitory shocks, for Canada, Germany and the UK, over 25% of the variations over the short horizon are due to transitory shocks. Thus, we claim that the role of transitory shocks should not be ignored.     

Yesterday's Bad Times Are Today's Good Old Times: Retail Price Changes Are More Frequent Today Than in the 1890s

This paper documents differences in the nominal rigidity of retail prices across two 28-month periods: 1889–91 and 1997–99. The most striking finding is that prices changed much less frequently in 1889–91. In the late-1800s when price changes did occur they were smaller on average and more narrowly distributed with fewer small or large price changes. Further, price changes were more permanent 100-plus years ago. These differences are consistent with a high occurrence of temporary price shocks and a higher cost of changing prices in 1889–91 than in 1997–99.     

Pricing to market with trade liberalization: The role of market heterogeneity and product differentiation in India’s exports

This paper studies the links between pricing to market (PTM) and trade liberalization using data for India’s exports (at the 4-digit level of classification) during the economic reforms period (1992–2005). We estimate a PTM model for exports to the G3 and three other emerging markets (Brazil, China and South Africa), distinguishing homogeneous from differentiated goods and correcting for changes in the level of protection faced by India’s exporters (import tariffs in destination markets), inflation and openness in the export destination market, a macroeconomic policy index partly reflecting changes in exporter’s costs, the share of the exporter in the destination market and the share of the product in the exporter’s total exports. We find that market heterogeneity changes the level of PTM, but PTM does not significantly differ between homogeneous and differentiated products. Indian exporters practice PTM by absorbing exchange rate changes into their mark-up in G3 markets, where they face tougher competition, but fully pass-through exchange rate changes in emerging markets. On the contrary, Indian exporters seem to be taking advantage of trade liberalisation in destination markets by marginally increasing exporter currency prices into emerging markets but not into the G3. However, in the case of differentiated goods, we find this effect of trade liberalisation for both G3 and emerging markets.     

Effects of Monetary Policy Shocks on Farm Prices and Exchange Rates in Korea

The effects of monetary policy shocks on farm prices and exchange rates in Korea are empirically investigated by using vector auto-regression models with sign restrictions on impulse responses. The main empirical results are as follows. First, (contractionary) monetary policy shocks have significantly negative effects on real farm prices. Second, the SR effect on farm prices is significant but short-lived. The dynamic response of farm prices is consistent with the predictions of the “overshooting” model. Third, the effects of monetary policy shocks on farm prices are more significant than the effects of monetary policy shocks on exchange rates.