THE EXCHANGE RATE IN THE JAPANESE ECONOMY: THE PAST,PUZZLES, AND PROSPECTS*

Selected topics in the literature on the exchange rate, in particular the yen, are reviewed from the viewpoint of some academic/practical puzzles. A survey is provided of past work covering use of the yen on PPP, covered and uncovered interest rate parity, the unbiasedness of expected future exchange rates, volatility spillover across borders and the effectiveness of intervention. The role of the yen in the international financial structure and its future role in global and regional financial markets are discussed.     

AGGREGATION,HETEROGENEOUS AUTOREGRESSION AND VOLATILITY OF DAILY INTERNATIONAL TOURIST ARRIVALS AND EXCHANGE RATES*

Tourism is a major source of service receipts for many countries, including Taiwan. The two leading tourism countries for Taiwan are Japan and the USA, which are sources of short‐ and long‐haul tourism, respectively. As a strong domestic currency can have adverse effects on international tourist arrivals through the price effect, daily data from 1 January 1990 to 31 December 2008 are used to model the world price, exchange rates, and tourist arrivals from the world, the USA and Japan to Taiwan, and their associated volatility. Inclusion of the exchange rate and its volatility captures approximate daily and weekly price and price volatility effects on world, US and Japanese tourist arrivals to Taiwan. The heterogeneous autoregressive model is used to approximate the slowly decaying correlations associated with the long‐memory properties in daily and weekly exchange rates and international tourist arrivals, to test whether alternative short‐ and long‐run estimates of conditional volatility are sensitive to the long‐memory in the conditional mean, to examine asymmetry and leverage in volatility, and to examine the effects of temporal and spatial aggregation. The approximate price and price volatility effects tend to be different, with the exchange rate typically having the expected negative impact on tourist arrivals to Taiwan, whereas exchange rate volatility can have positive or negative effects on tourist arrivals to Taiwan. For policy purposes, the empirical results suggest that an arbitrary choice of data frequency or spatial aggregation will not lead to robust findings as they are generally not independent of the level of aggregation used.     

MONEY,CAPITAL, AND EXCHANGE RATE FLUCTUATIONS*

We explore how the informational frictions underlying monetary exchange affect international exchange rate dynamics. Our perfectly flexible price model is capable of producing endogenously rigid international relative prices in response to technology and monetary shocks. The model is capable of accounting for the empirical regularities that the real and nominal exchange rates are more volatile than U.S. output, and that the two are positively and perfectly correlated. The model is also consistent with other standard real business cycle facts for the United States.     

CAPITAL ADEQUACY REQUIREMENTS AND THE FINANCIAL ACCELERATOR CAUSED BY BANK CAPITAL

This paper develops a computable dynamic general equilibrium model with heterogeneous banks, a portion of which may be constrained by capital adequacy requirements and the remainder of which may not, in order to examine what effects the capital requirements and bank capital induce in the macroeconomy. Applying the parameterized expectations algorithm, the model economy shows that binding bank capital constraints induce the financial accelerator, the hump‐shaped dynamic behaviour of output, and ineffectuality of monetary policy, and that all the results are derived from the individual banks’ cross‐sectional asymmetric responses that are consistent with the empirical evidence.     

IDEAL AND REAL JAPANESE MONETARY POLICY: A COMPARATIVE ANALYSIS OF ACTUAL AND OPTIMAL POLICY MEASURES*

This paper discusses the successes and failures of Japanese monetary policy by evaluating policies from January 1980 to May 2003 in the light of optimal policy rules. First, we quantitatively conceptualize the Bank of Japan (BOJ)'s policy decisions by employing Bernanke and Mihov's (1998 ) econometric methodology for developing monetary policy measures and term the resulting policy measure the ‘actual policy measure’. Next, assuming that the BOJ is committed to optimal policy rules, we simulate optimal policy paths, which we term ‘optimal policy measures’. We evaluate Japanese monetary policy historically by comparing actual and optimal policy measures.     

TAYLOR RULE REACTION COEFFICIENTS AND REAL EXCHANGE RATE PERSISTENCE

Recent literature has established a link between the persistence of real exchange rates and the degree of inertia in Taylor rule monetary policy reactions functions. This paper provides a different view on this link by investigating how the size of Taylor rule reaction coefficients impacts the adjustment dynamics of the real exchange rate. Within a stylized sticky‐price open‐economy macro model, it is demonstrated that a stronger interest rate reaction to inflation in the Taylor rule raises the convergence speed of the real exchange rate. Conversely, raising the coefficient on the output gap or attending to the exchange rate in an open‐economy version of the Taylor rule slows down real exchange rate adjustment. In all cases, more rapid convergence comes at the cost of stronger initial real exchange rate misalignments in the wake of monetary policy shocks.     

CROSS-COUNTRY EVIDENCE ON OUTPUT GROWTH VOLATILITY: NONSTATIONARY VARIANCE AND GARCH MODELS

This paper revisits the issue of conditional volatility in real gross domestic product (GDP) growth rates for Canada, Germany, Italy, Japan, the United Kingdom, and the United States. Previous studies find high persistence in the volatility. This paper shows that this finding largely reflects a nonstationary variance. Output growth in the six countries became noticeably less volatile over the past few decades. In this paper, we employ the modified iterated cumulative sum of squares (ICSS) algorithm to detect structural change in the variance of output growth. One structural break exists in each of the six countries after identifying outliers and mean shifts in the growth rates. We then use generalized autoregressive conditional heteroskedasticity (GARCH) specifications, modeling output growth and its volatility with and without the break in volatility. The evidence shows that the time-varying variance falls sharply in Canada and Japan, and disappears entirely in Germany, Italy, the United Kingdom and the United States, once we incorporate the break in the variance equation of output for the six countries. That is, the integrated GARCH (IGARCH) effect proves spurious and the GARCH model demonstrates misspecification, if researchers neglect a nonstationary variance. Moreover, we also consider the possible effects of our more correct measure of output volatility on output growth as well as the reverse effect of output growth on its volatility. The conditional standard deviation possesses no statistical significance in all countries, except a significant negative effect in Japan. The lagged growth rate of output produces significant negative and positive effects on the conditional variances in Germany and Japan, respectively. No significant effects exist in Canada, Italy, the United Kingdom, and the United States.     

Do large recessions reduce output permanently?

We apply a recent quantile autoregression unit root test to US GDP. The test takes into account that the transmission of a shock might depend on the sign and the size of the shock. We find that positive and negative shocks including large recessionary shocks like the 2008/2009 crisis have permanent effects on output.     

Capital mobility,openness, and saving-investment relationship in Asia

The main objective of this paper is to investigate the relationship between openness to trade and saving-investment behaviour in Asia during the period 1990–2006. We use this relationship to examine whether those Asian countries that are more open to trade and enjoy less trade barriers have also higher degree of capital mobility. Cluster analysis is used to classify the countries into different groups according to the share of trade in their gross domestic products and their average tariff rates. The goal is to place the countries that are similar to each other in terms of their trade policy in one group. We apply the Generalized Least Square (GLS) technique to a set of balanced panel error correction models to estimate the short- and long-run relationship between saving and investment. The estimation results indicate that there exist long-run equilibrium relationships between domestic saving and investment in all groups regardless of their degree of trade openness. Moreover, contrary to Amirkhalkhali and Dar (2007) for the case of OECD, we find out that more openness in terms of trade policy is associated with higher degree of capital mobility for the case of Asian countries. One policy implication of this result for the Asian economies is that trade openness can be used as a strategy to attract capital from abroad. Our findings also confirm the prediction of new open economy macroeconomic models regarding the short- and long-run behaviour of current account.     

TRADING VOLUME,VOLATILITY, AND GARCH EFFECTS IN THE SOUTH KOREAN WON/US DOLLAR EXCHANGE MARKET: EVIDENCE FROM CONDITIONAL QUANTILE ESTIMATION*

Under the MDH, this paper investigates the asymmetry in the positive relationship between unexpected volume and volatility, and whether the unexpected volume series as a proxy for the rate of information arrival absorbs the GARCH effects. This is achieved by applying a quantile regression approach to the won/dollar exchange market with reliable data on trading volumes. Interestingly, the results show that in a freely floating exchange rate system, the positive relationship increases as exchange rate returns are higher. Contrary to previous studies, despite a significantly positive relationship, the inclusion of volumes alone does not reduce volatility persistence at medium or high levels of returns. In addition, the reform of the South Korean exchange rate system had an impact on the relationship, which occurred in response to a financial crisis.     

MONEY, CREDIT, AND BUSINESS CYCLE COMOVEMENT

Abstract.  We developed a two-sector general equilibrium model with money and credit to study cross-sector comovement over the business cycle. Through a working capital channel, both money and productivity shocks can generate procyclicality of sectoral activities and positive cross-sector correlations of output, employment and investment. In our model, firms in each sector borrow in the credit market to finance their purchase of labour inputs, part of which are used in the adjustment process of capital stock. The shocks affect sectoral employment and investment through their impacts on interest rates and external finance premia.     

Employment, wages, and the economic cycle: Differences between immigrants and natives

In this paper, we analyse differences in the cyclical pattern of employment and wages of immigrants and natives for two large immigrant receiving countries, Germany and the UK. We show that, despite large differences in their immigrant populations, there are similar and significant differences in cyclical responses between immigrants and natives in both countries, even conditional on education, age, and location. We decompose changes in outcomes into a secular trend and a business cycle component. We find significantly larger unemployment responses to economic shocks for low-skilled workers relative to high-skilled workers and for immigrants relative to natives within the same skill group. There is little evidence for differential wage responses to economic shocks. We offer three explanations for these findings: an equilibrium search model, where immigrants experience higher job separation rates, a model of dual labour markets, and differences in the complementarity of immigrants and natives to capital.     

Solving optimal growth models with vintage capital: The dynamic programming approach

This paper deals with an endogenous growth model with vintage capital and, more precisely, with the AK model proposed in [R. Boucekkine, O. Licandro, L.A. Puch, F. del Rio, Vintage capital and the dynamics of the AK model, J. Econ. Theory 120 (1) (2005) 39-72]. In endogenous growth models the introduction of vintage capital allows to explain some growth facts but strongly increases the mathematical difficulties. So far, in this approach, the model is studied by the Maximum Principle; here we develop the Dynamic Programming approach to the same problem by obtaining sharper results and we provide more insight about the economic implications of the model. We explicitly find the value function, the closed loop formula that relates capital and investment, the optimal consumption paths and the long run equilibrium. The short run fluctuations of capital and investment and the relations with the standard AK model are analyzed. Finally the applicability to other models is also discussed.     

Exchange rate regime verification: An alternative method of testing for regime changes

This work proposes a change in persistence test for identifying de facto exchange rate regime changes. The results from 25 African countries show that this approach is able to identify some regime changes not captured by existing methods.     

LINKAGES BETWEEN EXCHANGE RATE POLICY AND MACROECONOMIC PERFORMANCE

Using a sample of 104 countries, we study macroeconomic performance from 1973 to 2007. We examine GDP growth, inflation rate, growth volatility and inflation volatility, and their response to a ‘words versus deeds’ measure of exchange‐rate policy, which is obtained by interacting a country's de jure and its de facto policy. For non‐industrialized countries, the highest growth rates and the lowest inflation volatility are associated with countries that pursue fear of floating policy, whereas countries that pursue a matched float policy (de jure and de facto floating) have the highest inflation rates but the lowest GDP volatility.     

COSTS AND BENEFITS OF EXCHANGE RATE STABILITY: CANADA'S INTERWAR EXPERIENCE

In January 1929, the Canadian government suspended gold exports and implemented a floating exchange rate regime that endured until the onset of World War II. In sharp contrast to the experience of other countries that left the gold standard, Canada's deflation and declining economic activity continued until 1933. This paper examines why the Canadian government chose to follow a restrictive monetary policy and how that policy affected the Canadian exchange rate. We show that the chosen policy was rational—given the government's assumptions and objectives—and that it was consistent with fiscal policy. In so doing, we argue that the government's commitment to monetary stability was credible. We show that one can explain the Canadian exchange rate's behavior by a simple expectations-based model of exchange rate determination, given external events and the government's monetary policy.     

Vintage capital and the dynamics of the AK model

This paper analyzes the equilibrium dynamics of an AK-type endogenous growth model with vintage capital. The inclusion of vintage capital leads to oscillatory dynamics governed by replacement echoes, which additionally influence the intercept of the balanced growth path. These features, which are in sharp contrast to those from the standard AK model, can contribute to explaining the short-run deviations observed between investment and growth rates time series. To characterize the optimal solutions of the model we develop analytical and numerical methods that should be of interest for the general resolution of endogenous growth models with vintage capital.     

International macroeconomic dynamics: A factor vector autoregressive approach

In this paper international comovements among a set of key real and nominal macroeconomic variables in the US, UK, Canada, Japan and the Euro area have been investigated for the 1980–2005 period, using a factor vector autoregressive approach. We present evidence that comovements in macroeconomic variables do not concern only real activity, but are an important feature also of stock market returns, inflation rates, interest rates and, to a smaller extent, monetary aggregates. Both common sources of shocks and similar transmission mechanisms explain international comovements, with the only exception of Japan, where the idiosyncratic features seem to dominate. Finally, concerning the origin of global shocks, evidence of both global supply-side and demand-side disturbances is found.