The Influences of Major Currencies in Foreign Exchange Markets: A Regression‐Based Measure and Its Application

Based on the regression explanatory power, we propose a measure of the relative influences of a group of major currencies, including the US dollar, euro, Japanese yen, and UK pound, on the exchange rate behaviors of lesser currencies. Using the measure and 27 sample floating currencies, we empirically examine the cross‐currency and temporal variations in the relative influences of two, three, and four major currencies during the 16‐year post‐euro period of 1999 to 2014.     

Does Euro or Dollar Pegging Impact the Real Exchange Rate? The Case of Oil and Commodity Currencies

The aim of this paper is to investigate the equilibrium exchange rates for commodity and oil currencies as well as the discrepancies of their observed exchange rates to these equilibriums. To this end, first, we estimate a long‐term relationship between the real effective exchange rate and economic fundamentals, including the commodity terms of trade. The estimation relies on panel cointegration techniques and covers annual data from 1980 to 2007. Our results show that real exchange rates co‐move with commodity prices in the long run and respond to oil price somewhat less than to commodity prices. Second, we assess the degree of misalignment of these currencies, as the gap between their observed exchange rate and the estimated equilibrium exchange rate. We show that these misalignments are not significantly related to the exchange rate regimes adopted by the countries, either pegged or floating. However, for pegged currencies, the size of misalignments significantly depends on the anchor currency, either the euro or the dollar. A comparison of misalignments of pegged commodity and oil currencies across different periods confirms these results: during periods of dollar (euro) overvaluation, currencies pegged to the dollar (euro) tend to be overvalued; the reverse being true when the dollar (euro) is undervalued. Consequently, pegged currencies are often driven away from their equilibria by wild fluctuations in the key currencies, on which they are anchored.     

Price discovery in the foreign exchange futures market

Examination is made of the relative contributions to price discovery of the floor and electronically traded euro FX and Japanese yen futures markets and the corresponding retail on‐line foreign exchange spot markets. GLOBEX electronic futures contracts provide the most price discovery in the euro; the on‐line trading spot market provides the most in the Japanese yen. The floor‐traded futures markets contribute the least to price discovery in both the euro and the Japanese yen markets. The overall results show that electronic trading platforms facilitate price discovery more efficiently than floor trading. Futures traders may also extract information from on‐line spot prices. © 2006 Wiley Periodicals, Inc. Jrl Fut Mark 26:1131–1143, 2006     

Who Gains From Nominal Devaluation? An Empirical Assessment of Euro‐area Exports and Imports

In early 2013, rumours about the euro‐appreciation gained momentum, which may lead to decreases in exports and increases in imports of the member states. Therefore, we investigate the impact of changes in the nominal euro exchange rate vis‐à‐vis major currencies on export and import performance of nine different euro‐area countries. To disentangle the ‘true’ equilibrium elasticities Stein's unbiased risk estimate (SURE) system error correction models (SSECM) are estimated for nominal exchange rate changes versus the rest of the world or other major currencies. To differentiate between price level changes and changes of the nominal exchange rate, a country's export and import equation is estimated using separately the nominal rate and the relative price/unit labour cost as regressors. Results of Wald tests indicate that assuming both variables to have the same influence on exports and imports is misleading. Whether the relative price/unit labour costs elasticities are high or low depends crucially on which indicator is chosen, while the effect of nominal exchange rate changes can be estimated robustly for all countries in the sample. In particular, France and Spain are hit by a euro‐appreciation since their exports are highly exchange rate elastic. However, for France, this effect is at least partly offset by an also negative exchange rate elasticity of imports.     

人民币汇率制度“棱锥”模型的探索

“汇率棱锥”模型以美元、欧元、日元为基础货币,以它们占全球市场外汇交易总量的百分比为权重,计算得到的加权平均值作为比价基准,即汇率中心价值,简称“汇元”。将所有货币的价值用“汇元”表示,建立以基础货币三角形为底的本币“汇率棱锥”,表示货币的价值与汇率的关系,形成钉住“汇元”的“汇率棱锥”模型。以权重削弱基础货币升贬的影响,以三种货币汇率间的抵消作用实现稳定汇率且降低钉住成本的效果。     

Examining the Return–Volatility Relation for Foreign Exchange: Evidence from the Euro VIX

We compare the return–volatility relation for the euro currency to the equivalent relation for the equity market, examining the sign, symmetry, and strength of the relation. We employ the euro‐currency exchange‐traded fund (FXE) and its associated option implied volatility index (the EVZ), whereas previous studies only employ equities and/or realized volatility. The equity studies find a negative asymmetric return–volatility relation for implied volatility, with a strong relation when large market movements occur. We find that the euro return–volatility relation can possess either a positive or negative sign, is asymmetric, and has a weaker relation. Thus, the sign and strength of the euro relation differs from the equivalent equity relation. Our quantile regressions show that both the positive and negative contemporaneous returns of the euro result in increased volatility in the extreme quantiles of the conditional distribution, with the contemporaneous effect showing a stronger relation when the euro depreciates. We also find that the volume of the euro‐currency ETF options affects the return–volatility relation for the euro ETF. Overall, the results here expand the concept originally restricted to equities, with the surprising results that the return‐implied volatility relation is weaker and the asymmetric return sometimes is positive for the euro currency. © 2012 Wiley Periodicals, Inc. Jrl Fut Mark 34:74–92, 2014     

Cross-dynamics of volatility term structures implied by foreign exchange options

This paper examines the cross-dynamics of volatility term structure slopes implied by foreign exchange options. The empirical findings demonstrate that a few principal components can explain a vast proportion of the variation in volatility term structure slopes across the major exchange rates. Furthermore, the results indicate that the euro is the dominant currency, as the implied volatility term structure of the euro is found to affect all the other volatility term structures, while the term structure of the euro appears to be virtually unaffected by the other currencies. Finally, our results provide evidence of significant nonlinearities in the relationship between the euro and the Swiss franc.     

人民币在“一带一路”货币圈影响力分析——信息溢出效应及其作用渠道

本文运用溢出指数方法,定量测度了人民币与“一带一路”沿线主要货币汇率之间的溢出效应及其动态演化,并采用系统GMM方法,探究人民币汇率净溢出效应的作用渠道。研究发现:近年来人民币与“一带一路”沿线主要货币汇率之间的溢出效应在波动中有所提高,随着“一带一路”倡议的深入实施,人民币汇率净溢出效应逐步提升,在该区域的影响力逐渐增强。在“一带一路”区域内,人民币在亚洲和非洲地区的影响力较强,且对阿联酋迪拉姆和安哥拉宽扎的净溢出效应已超过欧元、英镑和日元等主要国际货币。在净溢出效应的作用渠道方面,“一带一路”国家对中国贸易附加值依存度对其有利,而人民币汇率市场化改革、第三方市场贸易竞争、全球商品价格指数和全球风险指数却对其不利。因此,应加强中国在“一带一路”区域价值链的主导能力和商品竞争能力,加速推动“一带一路”区域内的离岸人民币金融市场建设,加强人民币汇率的区域性风险管理。     

Time variation in the correlation structure of exchange rates: high‐frequency analyses

The correlation structure of asset returns is a crucial parameter in risk management as well as in theoretical finance. In practice, however, the true correlation structure between the returns of assets can easily become obscured by time variation in the observed correlation structure and in the liquidity of the assets. We employed a time‐stamped high‐frequency data set of exchange rates, namely, the US$–deutsche mark and the US$–yen exchange rates, to calibrate the observed time variation in the correlation structure between their returns. We also documented time variation in the liquidity structure of these rates. We then attempted to link the observed correlations with the liquidity via an application of an illiquid trading model first developed by Scholes and Williams (1976). We show that the observed correlation structure is strongly biased by the liquidity and that it is possible to effect at least a partial rectification of the otherwise downward‐biased observed correlation. The rectified sample correlation is, therefore, more appropriate for input into models used for forecasting, option pricing, and other risk management applications. © 2001 John Wiley & Sons, Inc. Jrl Fut Mark 21:127–144, 2001     

Testing the Martingale Difference Hypothesis (MDH) with Structural Breaks: Evidence from Foreign Exchanges of Nigeria and South Africa

ABSTRACT

This study tests for MDH in two prominent foreign exchange (FX) markets in Africa, Nigeria and South Africa using three benchmark currencies (euro, dollar and pound sterling). Data utilized cover time series closing rate data set of five-day weekly frequency spanning December 14, 2001 to September 26, 2014. The study considers both the linear and nonlinear measures for MDH with better size and power properties. We also capture structural break endogenously from the data stream using Perron (2006) unit root test with structural break. Three striking findings are discernible from our analyses. First, on average, the South African FX market appears to be more efficient than the Nigerian FX market. Thus, the latter may be more susceptible to speculations than the former. Second, ignoring significant structural breaks may render statistical inferences invalid. Third, the choice of methodology does matter when testing for MDH of foreign exchanges in Africa.     

Emerging market hedge funds and the yen carry trade

For emerging market hedge funds, funding through the yen carry trade provides the possibility of enhancing returns by funding in a low coupon currency. This study examines whether emerging market hedge funds are exposed to the value of the Japanese yen and whether this is the key exposure associated with their use of leverage. The results suggest that the returns of these hedge funds are only weakly exposed to yen exchange rate but the use of leverage is associated with yen exposure, which implicates the importance of the yen carry trade.     

The impact of sovereign wealth funds on global financial markets

If sovereign wealth funds act similarly to private investors and thus allocate foreign assets according to market capitalisation rather than liquidity considerations, official portfolios reduce their “bias” towards the major reserve currencies — the US dollar and the euro. As a result, more capital flows “downhill“ from rich to less wealthy economies. In this scenario, the euro area and the United States would be subject to net capital outflows while Japan and the emerging markets would attract net capital inflows. The potential implications of a rebalancing of international capital flows for stock prices, interest rates and exchange rates remain uncertain, however. The authors wish to thank Marcel Fratzscher for excellents comments. The views expressed in this paper are those of the authors and do not necessarily reflect those of the European Central Bank.     

Impacts of short-term interest rates on stock returns and exchange rates: Empirical evidence from EAGLE countries

In this study, we estimate Bayesian vector autoregression (BVAR) and time-varying structural VAR (TVP-VAR) models for Brazil, Indonesia, Mexico and Turkey to analyze the impacts of short-term interest rates on stock prices and exchange rates considering the relationships between these variables. BVAR and TVP-VAR models’ estimations indicate that monetary policy decisions of these countries lead to capital movements as well as capital movements may create a considerable amount of variation in exchange and stock markets both in the periods of economic stability and financial crisis. We also reveal that increases in interest rates intending to prevent capital outflows may lead to decrease in stock returns, which in turn may deteriorate the real economic activity in Indonesia, while changes in short-term interest rates in Brazil, Indonesia and Turkey cannot be used as a tool to stabilize the value of their home currencies against the USD. Our study highlights the importance of formulating an optimal monetary policy framework accompanied by macro-prudential polices, which help to reach inflation target and smooth the possible variations in exchange rates and stock prices during economic crisis conditions in Brazil, Indonesia, Mexico and Turkey.     

How successful is the G7 in managing exchange rates?

The paper assesses the extent to which the Group of Seven (G7) has been successful in its management of major currencies since the 1970s. Using an event-study approach, the paper finds evidence that the G7 has been overall effective in moving the US dollar, yen and euro in the intended direction at horizons of up to three months after G7 meetings, but not at longer horizons. While the success of the G7 is partly dependent on the market environment, it is also to a significant degree endogenous to the policy process itself. In particular the reputation and credibility of the G7, as well as its ability to communicate a consensus among individual G7 members, are important determinants for the G7's ability to manage major currencies. The paper concludes by analyzing the factors that help the G7 build reputation and consensus, and by discussing the implications for global economic governance.     

An information approach to international currencies

Models of currency competition focus on the 5% of trading attributable to balance-of-payments flows. We introduce an information approach that focuses on the other 95%. Important departures from traditional models arise when transactions convey information. First, prices reveal different information depending on whether trades are direct or though vehicle currencies. Second, missing markets arise due to insufficiently symmetric information, rather than insufficient transactions scale. Third, the indeterminacy of equilibrium that arises in traditional models is resolved: currency trade patterns no longer concentrate arbitrarily on market size. Empirically, we provide a first analysis of transactions across a full market triangle: the euro, yen and US dollar. The estimated transaction effects on prices support the information approach.     

FX Market Returns and Their Relationship to Investor Fear

This note examines the relationship between changes in levels of investor fear (measured by the implied volatility index) and foreign exchange market returns. Our empirical results indicate a negative relationship between daily returns on high‐interest rate (investing) currencies and changes in the implied volatility index, while the association is positive for low‐interest rate (funding) currencies. That is, investing (funding) currencies tends to depreciate (appreciate) when investor fear increases. A sequential breakpoint test identifies a significant change in this relationship in the period following the 2008 collapse of Lehman Brothers, and another in 2012 following the resolution of the European sovereign debt crisis, which suggests that the relationship is linked to financial system liquidity. During the crisis period, currency returns are much more sensitive to changes in investor fear, and this is particularly so for funding currencies that are perceived to present a safe‐haven. The results have important implications for international finance, and those looking to speculate via the carry trade.     

Predicting exchange rate returns

We test whether forward premiums predict spot exchange rate returns for 16 currencies. We apply a recently developed time series predictability test that allows us to model data features including heteroskedasticity in forward premium. We discover return predictability for 75% (12/16) of currencies in our sample. Trading strategies show that investors can make more profits from our proposed forward premium model compared to a random walk model and foreign exchange carry trade model.     

Do futures lead price discovery in electronic foreign exchange markets?

Using intraday data, this study investigates the contribution to the price discovery of Euro and Japanese Yen exchange rates in three foreign exchange markets based on electronic trading systems: the CME GLOBEX regular futures, E‐mini futures, and the EBS interdealer spot market. Contrary to evidence in equity markets and more recent evidence in foreign exchange markets, the spot market is found to consistently lead the price discovery process for both currencies during the sample period. Furthermore, E‐mini futures do not contribute more to the price discovery than the electronically traded regular futures. © 2008 Wiley Periodicals, Inc. Jrl Fut Mark 29:137–156, 2009     

Determinants shaping the international currency system: Where do currencies stand relative to their equilibria?

Using a sample of 27 currencies, we empirically test the role of a large set of determinants potentially underlying currencies' share in the international currency system, providing, to the best of our knowledge, the most comprehensive study of this kind so far. We propose a new global indicator that quantifies the international use of currencies on the basis of three dimensions—medium of exchange, unit of account and store of value. From a range of indicators including openness, financial development and institutional development indicators, we uncover several variables that are significant in explaining the international status of currencies, hence contributing to understanding the role of the determinants shaping the international currency system. We also investigate the long-run equilibrium values for currency shares, allowing us to score currencies on the basis of the potential stemming from the determinants. We contribute to the debate on international currencies' prospects, not only by looking at much discussed currencies such as the US dollar, the euro and the Chinese renminbi, but also by uncovering potential of emerging currencies. This knowledge is of the utmost importance for the debate on the reform of the international monetary system—from the point of view of academics, policymakers and market practitioners.     

Price discovery in electronic foreign exchange markets: The sterling/dollar market

This study finds that GLOBEX has a marginally lower Hasbrouck, J. (1995) information share than Reuters D3000 in the electronic sterling/dollar foreign exchange market when returns are computed from high frequency data on either midquotes or transaction prices. However, GLOBEX's information share declines sharply when returns are computed from a mixture of GLOBEX transaction prices and Reuters D3000 midquotes. This helps explain why prior studies using this latter methodology report relatively low information shares for GLOBEX in the yen/dollar market. Variations in GLOBEX's information share on an intraday basis can be explained by variations in relative liquidity, spreads and price volatility. © 2009 Wiley Periodicals, Inc. Jrl Fut Mark 30:590–606, 2010