RISK,UNCERTAINTY AND CHINA'S EXPORTS*

Both theoretical and empirical models were developed in this paper to examine how exporters’ response to real exchange rate volatility (RERV) and real exchange rate misalignment (RERM) varies across industries in China. The theoretical model indicates that the impact of RERV depends on exporters’ attitude to risk while the effect of RERM is ambiguous. Using disaggregated industry data, Chinese exporters were found to be averse to RERV and RERM. This suggests that the negative impact on China's exports resulting from a revaluation of the RMB will be mitigated by a positive impact due to the reduction of RERM.     

市场结构与实际汇率——理论模型和对人民币／美元实际汇率的经验分析

文章在一个存在垄断竞争的两国动态一般均衡模型中分析市场结构变化对实际汇率长期趋势的影响,结论认为,本国可贸易品和不可贸易品市场垄断程度上升会导致本币实际升值,而外国可贸易品和不可贸易品市场垄断程度上升会导致本币实际贬值。对人民币/美元实际汇率和中美两国市场垄断程度关系的实证分析基本验证了模型的结论。文章建议,可以通过拆分重组、发展民营企业、引进外资企业等方式引入竞争、降低垄断程度,从而缓解部分人民币升值压力。     

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。     

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.     

人民币升值对两岸经贸关系影响的实证研究

本文利用1999年7月至2008年4月的月度数据,运用协整检验以及基于VECM的Granger因果检验等计量方法,封人民币升值封两岸经贸关系的影响进行探讨。结果表明,人民币汇率与两岸经贸关系的三个核心指标都存在长期稳定的均衡关系。从长期来看,两岸经贸关系的三个核心指标都是人民币名义汇率的单向Granger原因;而从短期来看,不存在Granger因果关系。至于人民币升值封大陆封台出口、大陆自台进口以及台商对大陆投资的影响,无论是长期还是短期,都不明显。简言之,人民币升值封两岸经贸发展的负面影响不明显,而且从长远来看,两岸经贸关系的发展将有利于人民币汇率的稳定。     

跨境贸易人民币结算失衡问题研究

跨境贸易人民币结算失衡明显,造成这一矛盾的主要原因在于以劳动密集型产品为主的出口商品贸易结构,出口企业缺乏议价能力、人民币升值预期以及人民币离岸市场广度和深度发展有限。结果是:一方面增加外汇储备资产风险暴露头寸;另一方面造成货币当局和境内进口企业福利损失。解决的方法是增强汇率制度弹性、深化人民币离岸市场和优化出口贸易结构以期完善人民币作为计价货币的市场条件。     

OPTIMAL EXPORT AND HEDGING DECISIONS WHEN FORWARD MARKETS ARE INCOMPLETE

This paper examines the behaviour of the competitive firm that exports to two foreign countries under multiple sources of exchange rate uncertainty. There is a forward market between the home currency and one foreign country's currency, but there are no hedging instruments directly related to the other foreign country's currency. We show that the separation theorem holds when the firm optimally exports to the foreign country with the currency forward market. The full‐hedging theorem holds either when the firm exports exclusively to the foreign country with the currency forward market or when the relevant spot exchange rates are independent. In the case that the relevant spot exchange rates are positively (negatively) correlated in the sense of regression dependence, the firm optimally opts for a short (long) forward position for cross‐hedging purposes.     

外汇资产、基础货币供应与货币内生性——基于央行资产负债表的分析

2002年以来,人民币处于升值压力中,国际收支双顺差使得我国外汇资产迅速扩大,外汇占款成为我国基础货币投放最主要的渠道。文章基于央行资产负债表,通过定量研究方法分析了汇改前后基础货币的主要来源及其与基础货币变动的动态关系,结果发现:汇改后净国外资产增量变化成为基础货币增量变化唯一格兰杰因,国内信贷和发行票据作为对冲外汇资产增加、防止基础货币过快增长的手段均已失效,基础货币供应具有内生性,央行已不能通过控制基础货币数量来调控货币供应量。     

Understanding Exchange Rate Movements during the 2008 Financial Crisis

During the 2008 financial crisis, many advanced economies, whose banking systems suffered significant capital losses, experienced large and rapid exchange rate depreciations followed by prolonged and gradual appreciation in subsequent periods. In order to understand one possible explanation of these observed exchange rate movements, we develop a simple model of a highly leveraged banking sector in which banks obtain part of their funding from abroad. A fall in bank net worth leads to foreign lenders demanding a higher risk premium on credit supplied to domestic banks. This higher risk premium can be met if the exchange rate experiences an appreciation along the adjustment path, since this raises the value of the bank's earnings in terms of the foreign currency for every period that the foreign risk premium is elevated. In order for the exchange rate to appreciate by a large amount along the adjustment path, it must initially become undervalued – relative to its long-run level – so that in equilibrium the market is willing to bid up its value in subsequent periods. This thus gives rise to the large initial depreciation of the exchange rate followed by its prolonged and gradual appreciation.     

The trade destruction effect and trade diversion effect of RMB appreciation

This paper examines how Chinese RMB appreciation affects China and its competitor’s exports to the third market at industry level. We develop a two-country competition model to analyze the trade destruction effect and trade diversion effect of RMB appreciation. The theoretical analysis shows that the appreciation of RMB has negative impacts on China’s exports and positive impacts on its competitor’s exports. We then empirically test how the appreciation of RMB to the US dollar affects China’s and India’s textiles and apparel exports to the US from 1995Q1 to 2008Q4. The empirical results show that an 1% appreciation of RMB to US dollar will reduce China’s exports of textiles & apparel to the U.S. by 2.63% and raise the India’s exports of textiles & apparel to the U.S. by 2.71%.     

加工贸易的本土增值 对人民币升值影响的放大效应

本文基于2001-2010年中国11个制造业的季度进出口贸易数据,利用面板DOLS方法,分析了人民币升值联合出口品本土增值对一般贸易与加工贸易的影响。研究结果表明,随着中国出口品本土增值度的提升,原本缺乏汇率弹性的加工贸易出口将变得敏感,而加工贸易进口由于与出口存在着“一对一”的关系,因而汇率弹性也表现出显著为负。加工贸易的本土增值将放大人民币有效升值对减少中国贸易顺差的作用,因此,加快国内技术进步,生产更加复杂的中间品,将适当缓解人民币“被迫”持续快速升值的压力。     

Pros and cons of official dollarization in Eastern Europe

The balance of payments barrier is the biggest obstacle to growth in Eastern Europe. This problem stems from the existence of individual national currencies which dynamically increases the risk associated with capital inflows. Capital inflow leads to both domestic growth and domestic currency real appreciation, reducing net exports to a level insufficient to service international debt obligations stemming from capital inflow. To avoid losses when capital flows are reversed, high domestic interest rates are required to stem capital outflow. Result is the decline of domestic economic activity. Adoption of foreign currency eliminates the need for net exports as the source of revenue needed to service debt obligation, hence it renders the balance of payments as an obstacle to sustained capital flows and economic growth irrelevant.     

人民币已进入了长期升值预期的阶段了吗?

近来 ,关于人民币汇率问题的议论成了社会热门话题 ,但却缺少真正从理论或实证方面严肃分析人民币汇率问题的讨论。本文从一个随机的开放经济模型出发 ,探讨了汇率决定的机制 ,基本结论是 ,像中国这样的发展中的国家 ,虽然经济保持长期高增长 ,但因增长的不稳定性与市场风险较大 ,其货币在相当长的时期都存在贬值预期 ,只有在经济增长风险降到一定水平后才可能产生升值预期 ,而目前中国并未达到这一水平。所以 ,目前人民币的升值压力并不是长期的 ,而只是一些利益集团的短期行为     

RMB Appreciation,Output Growth,and Inflation

Following Dibooglu and Kutan(2005),we construct a structural VAR model to investigate the impact of RMB(the Chinese currency)appreciation on growth and inflation in China.The empirical results show that RMB appreciation has negative effects on output growth and inflation while neither effect is statistically significant.However,exchange rate shocks are important in the fluctuations of output growth and inflation.We also simulate the scenario of a sharp currency appreciation compared to the gradual approach adopted by the Chinese government.In the counterfactual analysis we find that a sharp appreciation would lead to more violent shocks in economic growth and inflation compared to the gradual approach.     

China's Profits and Losses from Currency Intervention, 1994–2011

China's currency policy has been criticized for its apparent pursuit of mercantile advantage by artificially stimulating exports, with potential adverse effects on other economies. While China's currency policy may have positive output effects, there may be additional profits or losses. This paper computes the annual and cumulative accounting profits from currency intervention since 1994 when China began its currency intervention. It is shown that profits initially were positive but since 2007 China has lost a massive amount from the currency market.     

Exchange‐rate Effects on China's Trade*

Though China's share of world trade exceeds that of Japan, little is known about the response of China's trade to changes in exchange rates. The few estimates available have two limitations. First, the data for trade prices are based on proxies for prices from other countries. Secondly, the estimation sample includes the period of China's transformation from a centrally‐planned economy to a more market‐oriented one. We address these limitations with an empirical model explaining the shares of China's exports and imports in world trade in terms of the real effective value of the renminbi. The specifications control for foreign direct investment and for the role of imports of parts to assemble exports. Parameter estimation uses disaggregated monthly trade data and excludes China's decentralization period. We find that a 10 percent real appreciation of the renminbi lowers the share of aggregate Chinese exports by nearly one percentage point. However, the estimated response of imports is negligible and lacks precision.     

Exchange Rate Flexibility in China: Measurement,Regime Shifts and Driving Forces of Change

With an emphasis on government intervention that hinders market forces in currency movements, this paper presents a nuanced investigation of the degree and dynamics of flexibility in China's exchange rate regime. A high‐frequency data model is developed to more accurately detect the extent to which the Chinese currency is market‐driven. This indicator is then utilized in a Markov switching model to examine shifts in RMB regime flexibility. The results suggest a moderate increase in exchange rate flexibility since the 2005 reform. Additionally, two switching states are captured, and possible driving factors are discussed.     

人民币升值的市场压力分析

中国长期以来的经常项目和资本项目双顺差使人民币面临了巨大的升值压力,而中国外汇市场的非市场化没有将这种压力转化为价格的上升。最近两年来,美元的贬值进一步加大了人民币升值的外部压力。中国目前这种汇率形成机制带来了许多弊端,政府应当做的是进一步提高外汇市场的市场化程度,改进人民币汇率的形成机制。     

略论中国外汇储备面临的潜在资本损失

本文分析了中国巨额外汇储备面临的由本币升值汇率风险而导致的资本损失。文章从两个角度来研究该项损失:一是从央行资产负债表由于货币错配而招致的现实以及潜在资本损失的角度;二是从以一篮子货币或者一篮子商品来衡量的中国外汇储备国际购买力损失的角度。本文的结论是:中国央行资产负债表面临的资本损失是显著的;中国外汇储备国际购买力的波动显著高于市场价值的波动,尤其是用油价来衡量的外汇储备购买力波动相当剧烈。     

人民币汇率波动对宏观经济运行影响的实证分析

笔者采用SVAR方法实证1995年1月至2011年2月人民币汇率波动对宏观经济运行的影响,并论证了汇率冲击的动态传导机制,得出了如下结论:人民币升值总体上不利于净出口和实际产出的增长,并导致在近期和将来货币供应量的不断增长,人民币的升值总体上有利于控制通货膨胀。