Real exchange rate misalignments

This paper investigates episodes of real exchange rate appreciations and depreciations for a sample of 85 countries from 1960 to 1998. A Markov Switching Model is used to characterize real exchange rate misalignment series as stochastic autoregressive processes governed by two states corresponding to different means and variances. Our main findings are: first, some countries present no evidence of distinct misalignment regimes; second, for some countries there is no RER misalignment in one of the regimes; and, third, for the countries with two misalignment regimes, the appreciated regime has higher persistence than the depreciated one.     

Exchange Rate Regimes and Currency Crises: an Evaluation using Extreme Value Theory*

We test whether the exchange regime in place has an impact on the vulnerability of countries to currency crises. Our paper is distinguishable from others (i) in its use of extreme value theory to identify currency crisis periods and (ii) in using two separate designations for the exchange regime in place. The first is the self‐reported or announced exchange rate system. The second classification scheme, by Levy‐Yeyati and Sturzenegger, is based on the relative movements of international reserves and exchange rates. The Levy‐Yeyati and Sturzenegger procedure is intended to reveal the actual as distinct from the “legal” exchange arrangement. We find, interestingly, that the announced exchange regime has an impact on the likelihood of currency crises, while the “true” or observed regime does not. Announced pegged exchange regimes increase the risk of currency crisis even if, in reality, the exchange rate system in place is not pegged.     

The demand for money and the real exchange rate misalignments in emerging European countries: A nonlinear approach

This paper investigates the extent to which domestic and foreign money balances in emerging European countries are influenced by foreign exchange considerations. A well-specified and stable relationship between real money demand and the exchange rate can be perceived as an important part of a successful monetary policy. This study examines the long-run determinants of real exchange rates (RERs) associated with the behavioral equilibrium exchange rate (BEER) approach and identifies currency misalignments in these countries. The misalignment is later used to test the nonlinear behavior of the demand for money. The results indicate that the RER misalignments have a significant impact on domestic money demand. When the currencies are overvalued, there is a reduction in domestic money demand, and when they are undervalued, there is an increase in domestic money demand. Furthermore, it can be concluded that overvaluation causes an increase in foreign money demand indicating a shift of preference from domestic to foreign currency.     

人民币汇率制度:现状、近期选择与改革操作

本文运用钉住一篮子货币汇率制的数学模型对人民币均衡汇率和汇率失调程度进行了实证研究,重点讨论了货币篮子的目标设定和权重选择等问题,模拟了1994～2004年钉住一篮子货币汇率制下的人民币均衡汇率.模型结果表明,1994年以来,人民币名义汇率在大部分时期偏离模拟均衡汇率轨迹,表现为人民币汇率的失调.其中,1997～1998年为人民币汇率高估时期,1999年往后的时期人民币汇率转为明显的低估,尤以2002年最为严重,而且低估程度有进一步扩大的趋势.本文给出的政策含义是,就近一阶段而言,人民币采用钉住一篮子货币汇率制是一种现实且合理的选择.     

外汇储备与金融危机中的汇率稳定

本文首先分析了2008年全球金融危机下的外汇储备与实际有效汇率,结果表明2007年外汇储备存量更高和2008年外汇储备流量增加更多的国家,在2008年发生全球金融危机时保持了更稳定的汇率.在进一步对外汇储备与实际有效汇率的关系做了面板数据分析后,得出以下结论:外汇储备可以降低实际有效汇率的波动率,但这种效应是非线性的;更高的外汇储备充足率代表在危机状况下实行外汇市场干预的更大潜力;其他经济变量如一国的经济增长速度提高、货币供应量的波动降低、贸易条件的改善以及国内金融深化程度的加强都能降低有效汇率的波动.     

Explaining the Transition between Exchange Rate Regimes*

This paper studies the transition between exchange rate regimes using a Markov chain model with time‐varying transition probabilities. The probabilities are parameterized as nonlinear functions of variables suggested by the currency crisis and optimal currency area literature. Results using annual data indicate that inflation and, to a lesser extent, output growth and trade openness help explain the exchange rate regime transition dynamics.     

Drivers of the real effective exchange rates in high and upper‐middle income countries

This paper revisits the nexus between real effective exchange rate (REER) and total factor productivity (TFP) by controlling for trade openness, financial development and natural resources rents. We use a sample of 60 high‐income and upper‐middle income countries over the period 1995–2015 and employ the GMM estimation framework. Our results advance the empirical knowledge on the drivers of REER by providing robust evidence that the impact of TFP is not uniform across different country clusters. We find that in high‐income countries, increasing productivity causes the REER to depreciate hence becoming more trade competitive while the opposite is true for upper‐middle income countries. Furthermore, financial development and natural resources rents have no meaningful impact in the case of upper‐middle income countries but retain a significant effect in high‐income countries. Trade openness plays a key role in explaining the variation in REER in both country clusters.     

货币篮子最优权重:理论框架和实证检验

以Branson和Katseli(1981)建立的分析货币篮子最优权重的理论为框架,以曾经采用钉住货币篮子汇率制度的泰国和新加坡为实例考察货币篮子所涉及的国家之间实际汇率的长期均衡关系.实证分析主要包括建立泰国和新加坡货币篮子的向量自回归(VAR)模型以及在此基础上对两国的货币篮子进行协整检验从而验证篮子货币之间的长期均衡关系.通过对两国货币篮子长期均衡关系的分析判断出泰国货币篮子中的权重并非最优权重而新加坡货币篮子的权重接近于最优权重,新加坡的货币篮子的弹性优于泰国的货币篮子.这启示我们人民币所参考的货币篮子一定要控制其中美元的权重,增强弹性.     

Temporal causality and the dynamics of judicial appellate caseload,real income and socio-economic complexity in Australia

This paper shows that, during the 1970s and 1980s, MENA economies were characterized by a significant overvaluation of their currency. This overvaluation has had a cost in terms of competitiveness. To determine the degree of overvaluation of the MENA currencies, an indicator of misalignment was developed based on the estimation of an equilibrium exchange rate (Edwards, Exchange Rate Misalignment in Developing Countries, The Johns Hopkins University Press, Baltimore, 1988). The empirical work was based on a panel of 53 developing countries, ten of which are MENA economies. Although overvaluation decreased in the 1990s, probably due to flexibilization of the exchange rate regime in some MENA countries and to better macroeconomic management in others, misalignment remained higher than in other regions. This may be explained by the MENA countries’ delay in adopting more flexible exchange rates, as well as in reforming their economies. In terms of competitiveness, the estimation of an export equation has shown that manufactured exports have been significantly affected by the overvaluation of the MENA currencies. Countries that already had a more diversified economy benefited more from the decreased overvaluation in the 1990s. These countries also saw a continuous rise in diversification of their manufactured exports, resulting from the significant decline in exchange rate misalignment.     

关于货币危机后经济衰退的经验分析

文章以1990年以来的近200次货币危机为样本,对货币危机后的经济衰退进行了经验分析.研究发现,危机前的经常账户状况、外债余额占GDP比例、国际流动性指标等经济变量以及危机后的汇率制度都不会显著影响到危机后的经济衰退.另外,危机后的经济衰退与危机国政府在危机中是否抛售外汇储备、是否采取汇率贬值都没有明显关系.但是经济分析的结果表明,危机前的失业率和汇率制度以及危机中是否提高利率等因素对危机后的经济衰退有显著作用.     

The real effect of currency misalignment on productivity growth: evidence from middle-income economies

There have been interesting perspectives on the role of real currency misalignment in productivity growth. Whereas some studies warn against the destructive effect of real currency misalignment on productivity growth, others simply encourage it, at least, in the form of undervaluation. This paper documents evidence in support of the latter argument for 100 middle-income countries for the 1994–2010 period, using fixed-effects and generalized method of moments estimation techniques. The paper finds real currency misalignment to enhance productivity growth if it occurs as undervaluation; and to hamper productivity growth if it occurs as overvaluation. The paper also finds the impact of real currency misalignment on productivity growth to be symmetric, implying that the size of the impact is independent of the size of the misalignment. Moreover, the choice of the real misalignment measure may matter.     

How do currency misalignments’ threshold affect economic growth?

Based on panel smooth transition regressions, this paper determines for a large sample of developed and emerging countries, the value of currency misalignments from which we observe a regime shift in economic growth, over the 1980–2009 period. Misalignments, defined as the difference between the current real exchange rate and its equilibrium counterpart, are derived from the behavioural equilibrium exchange rate (BEER) approach. Our estimate relies on recent panel cointegration techniques that allow for heterogeneity and cross-sectional dependencies. We also control for the presence of structural breaks. Our findings show that our misalignments index plays a key role in the reversal of trend growth. Although the undervaluation of their currency acts positively on their growth, emerging countries cannot base their strategy on this finding to promote growth. We relate this result to the adverse effects of depreciation, as in “original sin”. The implications of our findings, in terms of economic policy, clearly emphasise the economic leverage role of undervaluation: it remains a powerful cyclical instrument but has to be, nevertheless, employed with precautionary to be globally and internationally consistent.     

The Penn Effect revisited: New evidence from Latin America

In this paper, we examine the role of relative productivity growth in real misalignment of exchange rates in Latin American countries. Specifically, we verify the validity of the Penn Effect for selected countries in this region. Our sample consists of 15 countries for the period 1951 to 2010. We employ both short‐ and long‐panel data techniques, which allow us to experiment with estimators suitable for short and long time dimensions of panel data. The Penn Effect is found to be supported for the entire sample, and for subsamples. Relative productivity growth is dominant in the real exchange rate movement during periods of mild or weak speculative attacks, as compared with periods of severe speculative attacks. To correct for real misalignment of currencies in Latin America under speculative attacks, relative productivity growth must be sizeable.     

The Real Exchange Rate and Growth in Emerging Markets: The Case of Zimbabwe

Zimbabwe has been facing growth and external competitiveness challenges, as shown by declining shares in global exports, high current account deficits, external debt and a widening productivity gap with South Africa. Estimates of the real equilibrium exchange rate reveal periods of sizeable misalignment, both prior to 2008 and under the current multicurrency regime. Misalignment has an asymmetric impact on growth. While overvaluation hampers growth, we have not found robust evidence that undervaluation would raise it. Replacing the multicurrency regime anchored in the US dollar by the South African rand would help reduce overvaluation and stimulate exports and growth. Under any currency regime, Zimbabwe needs to implement sound macroeconomic policies and an environment conducive to investment.     

On the Exchange Rate as a Nominal Anchor: The Rise and Fall of the Credibility Hypothesis

The credibility hypothesis, which was used to support the use of a pegged exchange rate arrangement as a nominal anchor mechanism, is based on restrictive analytical foundations that circumscribe its real world applicability. While all pegged exchange rate arrangements are subject to circumstances that can undermine the sustainability of the peg, exchange rate nominal anchor pegs are especially fragile because such arrangements introduce problems that are endogenous to that particular type of regime. The East Asian crisis is used to demonstrate the fragility of exchange rate nominal anchor pegs, while the case of Australia demonstrates how a floating currency escaped the contagion of the East Asian crisis.     

COMPARATIVE ANALYSIS OF EXCHANGE RATE APPRECIATION AND AGGREGATE ECONOMIC ACTIVITY: THEORY AND EVIDENCE FROM MIDDLE EASTERN COUNTRIES

The paper examines the effects of exchange rate depreciation on real output and price in a sample of 11 developing countries in the Middle East. The theoretical model decomposes movements in the exchange rate into anticipated and unanticipated components. Unanticipated currency fluctuations determine aggregate demand through exports, imports, and the demand for domestic currency, and determine aggregate supply through the cost of imported intermediate goods. The evidence indicates that the supply channel attributed to anticipated exchange rate appreciation results in limited effects on output growth and price inflation. Consistent with theory's predictions, unanticipated appreciation of the exchange rate appears more significant with varying effects on output growth and price inflation across developing countries.     

The illusive quest: Do international capital controls contribute to currency stability?

We investigate the effectiveness of capital controls in insulating economies from currency crises, focusing in particular on both direct and indirect effects of capital controls and how these relationships may have changed over time in response to global financial liberalization and the greater mobility of international capital. We predict the likelihood of currency crises using standard macroeconomic variables and a probit equation estimation methodology with random effects. We employ a comprehensive panel data set comprised of 69 emerging market and developing economies over 1975–2004. Both standard and duration-adjusted measures of capital control intensity (allowing controls to “depreciate” over time) suggest that capital controls have not effectively insulated economies from currency crises at any time during our sample period. Maintaining real GDP growth and limiting real overvaluation are critical factors preventing currency crises, not capital controls. However, the presence of capital controls greatly increases the sensitivity of currency crises to changes in real GDP growth and real exchange rate overvaluation, making countries more vulnerable to changes in fundamentals. Our model suggests that emerging markets weathered the 2007–2008 crisis relatively well because of strong output growth and exchange rate flexibility that limited overvaluation of their currencies.     

The equilibrium real exchange rate and macroeconomic performance in developing countries

This article presents first estimates of the growth impact of the equilibrium real exchange rate (ERER) for a sample of 63 developing countries over 1970–2007. The results suggest that real exchange rate misalignment, not the level of the ERER, matters for macroeconomic performance in these countries.     

Does Regime Choice Affect Exchange Rate Volatility-Economic Growth Link? An Application of Panel-VAR Approach

In recent years, numerous studies demonstrated that the effect of exchange rate regimes on economic growth is influenced by several factors. However, the literature rarely takes into account the possible costs associated with improving institutional quality on the choice of exchange systems and the analysis of the effects of shocks in the case of each type of regime. Throughout this research, we analyze the extent of bidirectional shocks according to each regime and compare the shock effects accordingly. The results show that the real exchange rate is less volatile and the shock effect is lower in countries that adopt a fixed exchange rate regime while the exchange rate is more volatile and the shock is higher in countries that adopt a flexible exchange rate regime. To show the effect and persistence of shocks, we carried out a Panel-VAR regression completed by impulse response functions, VAR decomposition and Granger causality tests for 20 countries adopting the first type of exchange regime compared with 20 countries practicing an alternative exchange rate regime in the period from 1996 to 2012.     

The persistence in real exchange rate: Evidence from East Asian countries

In this article, we examine the degree of persistence in monthly real exchange rate of six East Asian countries in relation to their two major trading partners, the United States and Japan, to study the validity of PPP for the 1976:01–2009:03 period. To investigate the persistency in real exchange rate series, we use sum of the autoregressive (AR) coefficients and the confidence interval for it using grid-bootstrap procedure recently developed by Hansen (1999). We have two findings: first, we find evidence for high persistency in real exchange rate in terms of the Japanese yen for five countries and for four countries in terms of the US dollar the for the full and pre-crisis sample periods. Second, for the post-crisis period, the presence of low persistency in real exchange rate supports PPP for three countries in terms of the Japanese yen and five countries in terms of the US dollar. These findings indicate that real exchange rate series of five East Asian countries are mean-revert based on their exchange rate policies and East Asian countries can form a currency union.