Measuring Exchange Rate Uncertainty: The Case of the Australian Dollar 1969 to 1987

In this article indices of exchange rate uncertainty are measured from the perspective of potential impacts on trade flows. Empirical evidence based on movements in the Australian dollar spot rates and forward rates indicates that there has been an increase in currency risk between 1969 and 1987, which is not surprising given the progressive relaxation of the exchange rate regime during this period. More surprising is the finding that exchange rate uncertainty indices have risen relative to domestic financial price uncertainty indices. This would not have been expected to occur if increased currency risk had been solely due to growing instability of the underlying economic environment. However, since there is evidence that currency risk has been offset by domestic risk, the risk burden of diversified international traders may not have been adversely affected.     

基于SJC-Copula的商业银行汇率风险的度量及对策分析

自2005年人民币汇率制度改革以来,人民币汇率弹性越来越大,各类金融机构对汇率风险的重视程度也在与日俱增。在此背景下,构建了商业银行汇率风险度量的SJC Copula模型,并以国内商业银行数据进行了实证研究,结果表明商业银行汇率风险的下尾风险较为显著,而上尾相关系数则会因不同的汇率而表现出一定的差异性。基于此,我国商业银行应该加强风险监测,提高风险管理的战略地位,引进汇率风险管理专业人才以及调整银行的币种结构等。     

外汇风险对冲和公司价值:基于中国跨国公司的实证研究

2005年7月人民币汇改以来,人民币升值,特别是相对于美元大幅升值,其不利影响开始显现,我国不少跨国公司使用外汇衍生品来对冲人民币汇率升值带来的风险。然而,尽管不少国外学者对金融衍生品使用和公司价值的关系进行了深入研究,但以中国公司为样本的研究仍很少见。中信泰富等衍生品投机事件和2008年金融危机的发生使得我国学者对金融衍生工具的作用和性质争议不断,使用外汇衍生品对冲外汇风险是否增加公司价值仍是一个有待深入研究的问题。本文基于2007年至2009年968家中国跨国公司的数据,实证检验了外汇衍生品使用和公司价值的关系,发现外汇衍生品使用带来了约10%的价值溢价,这一重要发现和基于发达国家的不少研究相一致。该研究成果支持了外汇衍生品在汇率风险管理中的积极作用和加快发展我国外汇衍生品市场特别是交易所市场以掌握人民币汇率定价权的重要性和紧迫性。     

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.     

货币危机预警理论及实证比较研究——兼对中国的模拟分析及启示

随着我国汇率制度改革的不断深入,人民币汇率浮动的幅度扩大,汇率对经济的调节功能日益显现。这同时也增大了我国的货币风险。文章在论述东南亚金融危机后货币危机理论最新发展的基础上,从理论和实证角度比较了五种货币危机预警模型的预警效果、优缺点,并对预警模型在我国的模拟应用作了探讨。     

Currency Options and Export-Flexible Firms

This paper examines the production and hedging decisions of a globally competitive firm under exchange rate uncertainty. The firm is risk averse and possesses export flexibility in that it can distribute its output to either the domestic market or a foreign market after observing the realized spot exchange rate. To hedge against its exchange rate risk exposure, the firm can trade fairly priced currency call options of an arbitrary strike price. We show that both the separation and the full‐hedging results hold if the strike price of the currency call options is set equal to the ratio of the domestic and foreign selling prices. Otherwise, neither result holds. Specifically, we show that the optimal level of output is always less than that of an otherwise identical firm that is risk neutral. Furthermore, an under‐hedge (over‐hedge) is optimal whenever the strike price of the currency call options is below (above) the ratio of the domestic and foreign selling prices.     

Currency internationalization and valuation effects: based on the threshold model

ABSTRACT

Based on the three functions of currency internationalization, including exchange medium, pricing currency and foreign reserve, this paper explores how the degree of currency internationalization affects the impact of the exchange rate and the asset price on valuation effects. Using samples of 161 countries or regions from 2001 to 2016 and the threshold regression method, we find that, firstly, there is a threshold effect of the exchange rate on valuation effects due to currency internationalization. The higher the comprehensive level of currency internationalization is, the greater the positive impact of the exchange rate on valuation effects will be. Secondly, the threshold effect of the asset price on valuation effects due to currency internationalization is not significant because of the high stickiness of asset price. Besides, compared with developed countries, currency internationalization is more important to increase valuation effects through exchange rate channel and asset price channel in developing countries or regions. Finally, there are some differences in the three types of currency internationalization functions. The promotion of exchange medium function will lead to a greater positive impact of the exchange rate on valuation effects, as well as pricing currency function. However, the foreign reserve function has no such effect.     

Currency Invoicing in International Trade: an Empirical Investigation

The authors investigate the choice of currency of invoicing in international trade under exchange rate fluctuations. Predictions derived from a model developed by Donnenfeld and Zilcha in 1991, and others, regarding the optimal choice of currency of invoice are tested for imports into Canada. The authors employ a unique dataset from Customs Canada that covers a six-year period and lists all currencies used for invoicing by industry. The empirical results support the hypothesis that there is a positive relationship between the extent of invoicing in the importer's national currency and exchange rate risk, and a negative relationship between invoicing in the exporter's currency as well as invoicing in a third currency and exchange rate risk. The empirical results further indicate that relative size of a country plays a role in determining the currency of invoicing.     

Foreign currency debt, risk premia and macroeconomic volatility

This paper studies the relationships between foreign currency debt, macroeconomic volatility, and risk premia in a model of a small open emerging market economy. The external value of the local currency is counter-cyclical, so that foreign currency debt requires larger repayments than local currency debt in bad states of nature. The level of foreign currency-denominated debts, therefore, affects the volatility of aggregate demand and by extension of the exchange rate. Exchange rate volatility is in turn an important determinant of the risk premium on local currency debt. Finally, this risk premium is a major factor in the choice of local versus foreign currency for emerging market borrowers. The mutual endogeneity of foreign currency debt, risk premia, and macroeconomic volatility creates important feedback effects in the economy: small increases in international risk aversion may entail large amplification effects on macroeconomic volatility since domestic borrowers substitute towards cheaper but riskier foreign currency debt finance.     

国际化经营企业应对外汇风险的策略研究

本文立足于汇率市场化和人民币升值背景,从微观层面出发,以我国国际化经营企业为研究对象,从企业的经营活动、融资活动、投资活动三大日常经营业务入手,对汇率波动的影响进行了尝试性分析,进而提出了企业应对外汇风险的具体财务策略,希望能对我国企业应对外汇风险有所启示。     

CURRENCY CONVERTIBILITY AND LINKAGE BETWEEN CHINESE OFFICIAL AND SWAP MARKET EXCHANGE RATES

This article investigates the impact of currency convertibility under the current account on the informational linkage between official and swap market exchange rates for Chinese currency (renminbi). Findings indicate that currency convertibility increased the informational connection between the government's official exchange rate and the swap market exchange rate, exclusively traded by foreign investors, and thus improved the information content of renminbi exchange rates. Moreover, the results also suggest that more complete currency convertibility was needed for more informed renminbi exchange rates.     

汇率决定中的货币替代——以中国相关数据验证

在考虑汇率的影响因素时,传统的汇率决定理论主要是从一国的宏观基本因素进行分析.随着经济全球化的出现,货币的跨国流动规模越来越大,货币替代现象日益严重,对汇率的干扰也越来越强.本文在货币分析法的基础上加入货币替代因素,建立了一个简单的分析框架,并运用我国的相关数据对此进行检验,证实货币替代确实对汇率产生了很大的影响.     

Exchange Rates and Outward Foreign Direct Investment: US FDI in Emerging Economies

This paper investigates the effect of exchange rates on US foreign direct investment (FDI) flows to a sample of 16 emerging market countries using annual panel data for the period 1990–2002. Three separate exchange rate effects are considered: the value of the local currency (a cheaper currency attracts FDI); expected changes in the exchange rate (expected devaluation implies FDI is postponed); and exchange rate volatility (discourages FDI). The results reveal a negative relationship between FDI and more expensive local currency, the expectation of local currency depreciation, and volatile exchange rates. Stable exchange rate management can be important in attracting FDI.     

The Effects of Foreign Currency Derivatives on the Monetary Policy Exchange Rate Channel in China

This paper examines changes in the monetary policy exchange rate channel in the presence of foreign currency derivatives (FCD) markets in China. Initially a theoretical macroeconomics model incorporating the exchange rate risk hedging is presented, and this is followed by an empirical test. A theoretical model implies that with more firms using foreign currency derivatives to hedge the exchange rate risk, the effect of the exchange rate on the net exports will be weaker and may even be reversed. The empirical section uses Structure Vector Autoregression (SVAR) models with China's monthly macro data over the 2000–2013 period to assess the impact of the FCD market on the exchange rate channel. Empirical support for the changes in the exchange rate channel transmission is found. By impulse response function (IRF) analysis, with the emergence of the domestic FCD market in China, in the long run the probability becomes higher that the negative effect of RMB appreciation on China's net exports to the US is reversed; meanwhile the negative effects of RMB appreciation on the overall net exports and the net exports to the EU become gradually weaker on average.     

State-uncertainty preferences and the risk premium in the exchange rate market

This paper shows that state-uncertainty preferences help to explain the observed exchange rate risk premium. In the framework of Lucas (1982) economy, state-uncertainty preferences amount to assuming that a given level of consumption will yield a higher level of utility the lower is the level of uncertainty perceived by consumers. Under these preferences we can distinguish between two factors driving the exchange rate risk premium: “macroeconomic risk” and “the risk associated with variation in the private agents' perception on the level of uncertainty”. Empirical evidence from three main European economies in the transition period to the euro provides empirical support for the model. The model is more successful in accounting for the observed currency risk premium than models with more standard preferences, and the general perception of risk by private agents is shown to be a more important determinant of risk premium than macroeconomic uncertainty.     

EXCHANGE RATE RISK AND EXPORT REVENUE IN TAIWAN

Abstract. The effect of exchange rate risk on export revenue in Taiwan between 1979 and 2001 is investigated in a bivariate GARCH-M model that simultaneously estimates time-varying risk. Depreciation is found to stimulate export revenue in domestic currency, but the quantitative impact is small and any associated increase in exchange risk has a negative impact. Implications for economic policy are discussed.     

Bond risk premia, macroeconomic fundamentals and the exchange rate

We propose a two-country no-arbitrage term-structure model to analyze the joint dynamics of bond yields, macroeconomic variables and the exchange rate. The model allows to understand how exogenous shocks to the exchange rate affect the yield curves, how bond yields co-move in different countries and how the exchange rate is influenced by interest rates, macro-economic variables and time-varying bond risk premia.Estimating the model with US and German data, we find that time-varying bond risk premia account for a significant portion of the variability of the exchange rate: apparently, a currency tends to appreciate when investors expect large capital gains on long-term bonds denominated in that currency. A number of other novel empirical findings emerge.     

Bond risk premia,macroeconomic fundamentals and the exchange rate

We propose a two-country no-arbitrage term-structure model to analyze the joint dynamics of bond yields, macroeconomic variables and the exchange rate. The model allows to understand how exogenous shocks to the exchange rate affect the yield curves, how bond yields co-move in different countries and how the exchange rate is influenced by interest rates, macro-economic variables and time-varying bond risk premia.Estimating the model with US and German data, we find that time-varying bond risk premia account for a significant portion of the variability of the exchange rate: apparently, a currency tends to appreciate when investors expect large capital gains on long-term bonds denominated in that currency. A number of other novel empirical findings emerge.     

中国货币替代现象的VEC模型:1994-2005

随着人民币汇率制度改革的进行和资本账户开放进程的加快,中国的货币替代现象理当引起我们更大的关注.本文通过建立货币替代的VEC模型对中国的货币替代程度及其影响因素之间的关系作了动态分析,最后得出人民币名义有效汇率在长期和短期内都是影响中国货币替代的主要因素,名义有效汇率的频繁波动会造成货币替代乃至货币需求的不稳定.因此加快人民币汇率制度改革、降低美元在人民币汇率盯住篮子中的比重就显得尤为重要了.     

Capital Inflows,Exchange Rate Flexibility and Credit Booms

Historically, capital flow bonanzas have often fueled sharp credit expansions in advanced and emerging market economies alike. Focusing primarily on emerging markets, this paper analyzes the impact of exchange rate flexibility on credit markets during periods of large capital inflows. It is shown that bank credit is larger and its composition tilts to foreign currency in economies with less flexible exchange rate regimes, and that these results are not explained entirely by the fact that the latter attract more capital inflows than economies with more flexible regimes. The findings thus suggest countries with less flexible exchange rate regimes may stand to benefit the most from regulatory policies that reduce banks' incentives to tap external markets and to lend/borrow in foreign currency; these policies include marginal reserve requirements on foreign lending, currency‐dependent liquidity requirements and higher capital requirement and/or dynamic provisioning on foreign exchange loans.