THE CAUSALITY BETWEEN STOCK RETURNS AND EXCHANGE RATES: REVISITED

There has been a renewed interest in the determination of causality between stock markets and exchange rates. In nearly all these studies Granger causality tests has been extensively used. In this paper, we employ the standard Granger causality methodology to a research setting similar to that of Granger et al. (2000). We consider the causality between the two markets in nine east Asian economies. We find that the direction of causality tends to demonstrate a hit-and-run behaviour and switches according to the length of period chosen. This implies that great caution should be taken when interpreting Granger causality results.     

GLOBAL IMBALANCES AND THE PRETENCE OF KNOWING FUNDAMENTAL EQUILIBRIUM EXCHANGE RATES

Global imbalances remain a key challenge for the world economy. In this regard, it has often been argued that insufficient exchange rate adjustment prevents their dissolution. Obviously, such a line of reasoning crucially depends on the methodologies used for assessing the ‘fair value’ of a currency. This paper looks specifically at estimates of fundamental equilibrium exchange rates (FEER) and shows that these are highly sensitive to the chosen assumptions. The present study cautions against using such models too mechanistically and giving too much confidence to the precision of obtained magnitudes of misalignment.     

UNIFICATION OF CHINA'S FOREIGN EXCHANGE RATES

This paper studies China's foreign exchange market before and after the 1994 unification of the official and swap exchange rates. Examining segmentation as well as linkages among the foreign exchange adjustment centers (FEACs) reveals that the linkages were not strong enough to eliminate or narrow price differentials among FEACs. Hence, improving the foreign exchange market's efficiency requires a reform to unify the swap rates. This paper discusses the unification's implications for inflation, monetary policy, and current account convertibility.     

OMITTED VARIABLES, CONFIDENCE INTERVALS, AND THE PRODUCTIVITY OF EXCHANGE RATES

Abstract.  A new analytical technique, named 'Bi-Directional Reiterative Truncated Projected Least Squares' (BD-RTPLS), produces reduced form estimations and less than half the error of OLS when there are omitted variables that interact with included variables. This paper develops confidence intervals for BD-RTPLS and uses BD-RTPLS to estimate the relationship between the exchange rate (e) and gross domestic product (GDP) using annual data from 1984 to 2000 for 23 developing Asian and Pacific countries. BD-RTPLS produces estimates for the exchange rate multiplier ( d GDP/ d e) for these countries and shows how omitted variables affected these multipliers across countries and over time.     

实际汇率与中国双边贸易

该文将中国与中国贸易伙伴国之间的实际汇率引入一个诱导的出口方程中,并加入中国出口的竞争者与中国的贸易伙伴国之间的实际汇率.结果表明,亚洲的一些主要国家和地区是中国出口的竞争者,1997年发生的亚洲金融危机确实使中国1998年和1999年的出口减少.除了海外市场需求和国内供给能力外,中国与贸易伙伴国之间的实际汇率,以及中国出口的竞争者与中国的贸易伙伴国之间的实际汇率对中国的双边贸易也有显著影响.     

BUBBLES IN EXCHANGE RATES AND MONETARY POLICY

We evaluate the macroeconomic performance of different monetary policy rules when there are bubbles in the exchange rate. We do this in the context of a non‐linear rational expectations model. The exchange rate is allowed to deviate from its fundamental value and the persistence of the deviation is modeled as a Markov switching process. Our results suggest that reacting to exchange rate movements does not significantly improve welfare. However, taking into account the switching nature of the economy may be more beneficial.     

实际汇率与中国双边贸易

本文将中国与中国贸易伙伴国之间的实际汇率引入一个诱导的出口方程中,并加入中国出口的竞争者与中国的贸易伙伴国之间的实际汇率。结果表明,亚洲的一些主要国家和地区是中国出口的竞争者,1997年发生的亚洲金融危机确实使中国1998年和1999年的出口减少。除了海外市场需求和国内供给能力外,中国与贸易伙伴国之间的实际汇率,以及中国出口的竞争者与中国的贸易伙伴国之间的实际汇率对中国的双边贸易也有显著影响。     

THE CHOICE OF EXCHANGE RATE REGIME AND THE VOLATILITY OF EXCHANGE RATES BEFORE AND AFTER THE ASIAN CRISIS: A COUNTERFACTUAL ANALYSIS*

This paper carries out a counterfactual analysis of the impact of alternative exchange rate regimes on the volatility of the nominal effective exchange rate (NEER) and the bilateral rate against the US dollar for nine East Asian countries, both before and after the Asian financial crisis. Our hypothetical regimes include a unilateral basket peg (UBP), a common basket peg (CBP) and a hard peg against the $US, but in contrast to previous counterfactual exercises which compute the weights for effective exchange rates on the basis of simple bloc aggregates, we apply a more disaggregated methodology using a larger number of trade partners and utilise ARCH/GARCH techniques to better capture the time‐varying characteristics of volatility. Our results suggest that a UBP would minimise effective exchange rate volatility for all countries both before and after the crisis and provides the highest regime gains compared to actual. Although the gains for a CBP are always less than those for a UBP the absolute differences between the two regimes appear to be small. In terms of bilateral exchange rates against the dollar the gains from a UBP or CBP could also be quite significant for the non‐dollar peggers, especially post‐crisis, since a fall in effective instability would be accompanied by a fall in bilateral instability.     

HOW ROBUST ARE ESTIMATES OF EQUILIBRIUM REAL EXCHANGE RATES: THE CASE OF CHINA

Abstract.  Assessments of a country's real exchange rate relative to its 'equilibrium' value as suggested by 'fundamental' determinants have received increasing attention. Using China as an example, the present paper illustrates models commonly used to derive equilibrium real exchange rate estimates. The large variance in the estimates raises serious questions about the robustness of these results. The basic conclusion is that, at least for China, small changes in model specifications, explanatory variable definitions, and time periods used in estimation can lead to very substantial differences in equilibrium real exchange rate estimates. Therefore, such estimates should be treated with great caution.     

FEDERAL BUDGET DEFICITS, MONEY, AND EXCHANGE RATES

The dollar's strength during the 1980s appears to many—particularly as reported in the financial press—to have been directly linked to the decade's large budget deficits and the subsequent increase in the stock of federal debt outstanding. The popular argument is that the budget deficit and the growth of federal government credit market demand caused U.S. interest rates to rise over that period, inducing large capital inflows from abroad to finance the deficit. According to the argument, the capital inflows caused the dollar to appreciate. Despite the argument's popularity, the empirical literature does not strongly support it. Evidence on the relationship between the federal deficit and the dollar is at best mixed.
This article reconsiders the effects of federal budget deficits on the exchange rate. The analysis involves estimating a vector autoregressive (VAR) model of exchange rates that includes monetary, fiscal, and price level variables. Within the VAR framework, impulse analysis traces the dynamic response of exchange rates to various budget deficit measures.
The analysis finds that deficits do not directly Granger cause exchange rates, but it also finds evidence of an indirect effect working through the money supply and price level. Moreover, the analysis reveals some evidence that foreign exchange markets are forward looking and react to expected budget deficits. The innovations accounting and impulse analysis also suggest a forward-looking dynamic relationship between deficits and exchange rates, but the relationship is sensitive to the ordering of the variables.     

ROBUST ESTIMATIONS OF EQUILIBRIUM EXCHANGE RATES WITHIN THE G20: A PANEL BEER APPROACH

This paper is concerned with the robustness of equilibrium exchange rate estimations based on the BEER approach for a set of both industrial and emerging countries. The robustness is studied in four directions, successively. First, we investigate the impact of using alternative proxies for relative productivity. Second, we analyze the impact of estimating the equilibrium equation on one single panel covering G20 countries, or separately for G7 and non-G7 countries. Third, we measure the influence of the choice of the numeraire on the derivation of bilateral equilibrium rates. Finally, we study the temporal robustness of the estimations by dropping one or 2 years from the estimation period. Our main conclusion is that BEER estimations are quite robust to these successive tests, although at one point of time misalignments can differ by several percentage points depending on the methodology. The choice of the productivity proxy is the most sensible one, followed by the country sample. In contrast, the choice of the numeraire and the time sample have a relatively limited impact on estimated misalignments.     

UNOFFICIAL EXCHANGE RATES IN BANGLADESH: A COINTEGRATION ANALYSIS

This article estimates a structural model for unofficial market foreign exchange (forex) rates (E U ) and examines the stability of the forex market in Bangladesh using an autoregressive distributed lag approach to cointegration analysis on quarterly data from 1976Q2–1995Q2. It also compares the in-sample and out-of-sample (from 1995Q3–1999Q2) forecasting performances of the structural model with other timE-series models. With E U as a dependent variable and official exchange rates (E O ) , money supply (M) , the difference between foreign and domestic interest rates (I) , forex reserves relative to imports (Q) and political along with some structural factors (D85) as explanatory variables, a multivariate cointegrated relationship is found in which E O , Q , and I cause an appreciation and M and D85 cause a depreciation in E U . These results imply that the overvaluation of the official exchange rate, increases in money supply, the paucity of official forex reserves, and structural factors are the main causes for the creation of the unofficial market for forex in Bangladesh. Results also reveal that the forex market in Bangladesh is stable during the sample period. The structural model performs well in in-sample prediction, and the random walk model performs best in out-of-sample forecasting.     

THE RELATIONSHIP BETWEEN THE BLACK MARKET AND OFFICIAL EXCHANGE RATES: AN EXAMINATION OF LONG-RUN DYNAMICS IN INDIA

This study is the first to use Johansen's cointegration approach for India in the analysis of the long‐term dynamics between the black and official exchange rates for the period 1953–1993. The study also estimates the long‐run elasticity of the official rate with respect to the black market rate. As monthly data over 40 years are used, and a more robust methodology is employed, the results are likely to be more reliable as compared with the earlier work on India. The results of our study suggest that while there is a long‐term relationship between the two rates, the direction of causality is from the black rate to the official exchange rate. This is plausible in the Indian context where policy has generally lagged behind events in the black market. The hypothesis of a constant black market premium is rejected, implying that there is a mismatch between the percentage change in the official exchange rate and the percentage change in the black market rate.