THE REAL INTEREST RATE DIFFERENTIAL: INTERNATIONAL EVIDENCE BASED ON NON-LINEAR UNIT ROOT TESTS

This paper aims at testing international parity conditions by using non-linear unit root tests advocated by Kapetanios et al . (2003, KSS). Results from the KSS tests based on 17 countries (G7 and 10 Asian countries) overwhelmingly show that the adjustment of real interest rates towards real interest rate parity (RIP) follows a non-linear process except for the Taiwan, Hong Kong and Philippines relationships with both the USA and Japan. Overall, the empirical results are in favour of RIP using the USA and Japan as the centre countries but only if non-linearities are accounted for in the data-generating process. Our findings confirm that interest rate differentials, like the real exchange rates reported in recent literature, display a non-linear mean reversion process.     

关于汇率理论与汇率政策研究的思考

汇率的决定与外汇市场供求、经常账户平衡、央行货币政策、相关资产价格、经济基本面、国民收入及国际收支账户等有着直接的或间接的关系。完善人民币汇率形成机制,要从外汇市场拓展到本外币政策深层次协调,从涉外经济拓展到内外经济协调发展,同时在新的汇率形成机制下对国际货币体系和主要货币的变化趋势进行系统的监测预测和分析研究。     

人民币汇率弹性的增大对利率稳定性的影响

汇率改革前后,汇率与利率之间的动态关系发生了系统性的改变。在均值意义上讲,人民币汇率弹性的增大降低了利率波动的幅度,利率对汇率的反馈机制有了一定的加强。实证检验证明,汇率改革后人民币汇率弹性的增大能稳定利率波动的假设只在长期内存在,而短期内人民币弹性的增大实际上加剧了利率的波动。     

FURTHER EVIDENCE ON REAL INTEREST RATE EQUALIZATION: PANEL INFORMATION,NON‐LINEARITIES AND STRUCTURAL CHANGES

Previous studies applying traditional unit root tests generally have difficulty providing widespread evidence supporting the real interest rate parity hypothesis (RIPH). This paper aims to analyse the empirical fulfilment of RIPH for 17 OECD countries by employing many recently developed unit root tests. Power of the tests is raised by taking different approaches, such as using cross‐sectional information, accounting for non‐linear adjustment towards the equilibrium and allowing for structural changes. The combined results of the tests using panel information show that broad evidence in favour of RIPH prevails for 13 of the 17 countries. By contrast, univariate tests fail to make widespread rejections of the unit‐root hypothesis. Our evidence reveals a high degree of market integration for developed countries, and the effect of monetary policies as a stabilization tool might be limited at least in the long run.     

汇率水平及其波动性变化对产业结构调整的影响*

在开放经济条件下研究汇率制度调整所引致的汇率水平及其波动性的变化对产业结构变动的复杂影响及其经济结构效应,符合我国推进新一轮改革开放的战略需求和当前世界经济全球化的发展趋势。有鉴于此,本文试图探讨在汇率制度调整和范式改变的条件下汇率变动的改变对我国工业部门产业结构调整的影响。基于2003-2012年的时间序列数据,本研究建立了汇率水平及波动率与工业产业结构的向量自回归模型,通过协整检验和脉冲响应函数考察了各变量间的长期均衡关系和短期冲击影响。实证结果表明,汇率升值并没有促进工业部门内的产业结构升级,但是汇率弹性的增加有利于工业部门内的产业结构向有益的方向发生改变。     

人民币汇率形成机制的完善

人民币汇率形成机制实际上就是汇率制度的选择问题。我国现行人民币汇率形成机制存在着众多缺陷,突出表现为汇率形成机制扭曲、汇率缺乏灵活性、汇率调整缺乏准确依据、较高的维持成本。在我国加入WTO后新的开放形势下,完善人民币汇率形成机制的必要性彰明较著。完善人民币汇率形成机制的核心内容至少包括五个方面,即完善汇率的决定基础、矫正汇率形成机制的扭曲、健全和完善外汇市场、增加汇率的灵活性、改进汇率调节机制。完善汇率机制的实质是提高汇率形成的市场化程度,而不是简单调整汇率水平。完善汇率机制是我国自主的选择,必须要充分考虑我国社会、经济的承受能力,避免汇率大幅波动。     

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。     

人民币汇率合理性判断--用平行数据单位根对人民币购买力平价的经验分析

本文讨论了人民币汇率是否合理、人民币是否应该升值的两个判断标准,采用四种新发展起来的平行数据单位根检验法,对1978年1月-2004年9月的人民币购买力平价进行了检验.检验的结果普遍支持了购买力平价,可以认为人民币汇率的长期基础是合理的.但我们认为由于汇率在当代存在着两重作用与二重性,现有汇率理论只能部分地解释汇率的决定.论文对汇率的两重作用与二重性进行了分析.     

人民币外部实际汇率的产业结构效应*

本文对人民币外部实际汇率的产业结构效应进行了理论和实证分析。理论分析表明,外部实际汇率贬值通过成本效应、支出转移效应直接提升净出口,出口部门需求上升通过产业分工效应、收入效应和城镇化效应间接带动其他部门、其他产业的产出。实证检验显示,外部实际汇率贬值总体上有利于提升工业产出,但外需变化对工业产出的影响要比外部实际汇率显著;外部实际汇率可提升服务业产出但有明显时滞。     

宏观经济政策对人民币汇率变动的影响

本文从影响汇率变动因素的角度出发,着重探讨在不完全资本流动情况下宏观经济政策对一国汇率变动的作用,进而对人民币走势作一利弊分析,指出人民币走向国际可自由兑换货币是中国参与经济全球化的必然趋势。     

人民币汇率变动对产业结构 影响的实证研究*

汇率作为重要的价格信号,能影响我国参与国际分工的成本,改变我国生产要素的相对价格,引导国内资源的重新配置,并对我国产业结构的调整产生重要影响。本文从三次产业结构调整和不同要素密集度行业结构调整两个角度展开分析,分别研究人民币有效汇率对其影响。其中,从三次产业结构调整的角度,对国家和地区层面进行实证研究,结论表明人民币有效汇率变动对第二产业具有明显的抑制作用,而对第三产业发展具有促进作用,且对经济发达的东部地区的影响明显大于对中西部地区的影响;从资源配置的角度,以劳动力、资本要素在产品市场和要素市场的流动为切入点,对汇率变动影响产业结构变化的机理及其路径进行了深入系统的理论研究,结论表明,人民币有效汇率对资本密集型行业和技术密集型行业具有促进作用,且实际有效汇率的影响大于名义有效汇率的影响。\     

人民币汇率制度选择的政治经济学

本文探究了人民币汇率制度选择的政治经济学。人民币汇率制度的选择首先必须要服务于中国出口导向型的经济增长模式。其次,这种模式推动了中国经济发展的内外部不平衡,但不需要通过汇率来逆向调节或大幅度校正这种不平衡,削弱中国经济的比较优势。再次,人民币汇率制度的选择要有助于人民币国际化。人民币国际化要坚持自我,不搞亚元。对于“汇率操纵”之类的非议,理性对待。未来人民币要继续加大防御性汇率政策的力度,防止汇率出现大幅度的波动。     

从微观视角看我国汇率政策选择

从企业融资方式与汇率稳定性、不同融资方式的企业对利率和汇率的敏感性的差异等微观视角看,根据我国经济的微观基础,选择符合"统筹国内发展和对外开放的要求"的汇率政策是:短期内保持联系汇率不变,长期内要逐步实行浮动汇率政策。利率市场化需要汇率制度的配套改革,即利率市场化和浮动汇率要同步进行,才能建立起适应国际经济和国内经济变化的利率--汇率机制。     

COMMON FACTORS OF THE EXCHANGE RISK PREMIUM IN EMERGING EUROPEAN MARKETS

Existing empirical evidence suggests that the Uncovered Interest Rate Parity condition may not hold due to an exchange risk premium. For a panel dataset of eleven emerging European economies we decompose this exchange risk premium into an idiosyncratic (country‐specific) element and a common factor using a principal components approach. We present evidence of stationary idiosyncratic and common factors. This result leads to the conclusion of a stationary risk premium for these countries, which is consistent with previous studies often documenting a stationary premium in advanced countries. Furthermore, we report that the variation in the premium is largely attributable to a common factor influenced by economic developments in the United States.     

TAYLOR RULE REACTION COEFFICIENTS AND REAL EXCHANGE RATE PERSISTENCE

Recent literature has established a link between the persistence of real exchange rates and the degree of inertia in Taylor rule monetary policy reactions functions. This paper provides a different view on this link by investigating how the size of Taylor rule reaction coefficients impacts the adjustment dynamics of the real exchange rate. Within a stylized sticky‐price open‐economy macro model, it is demonstrated that a stronger interest rate reaction to inflation in the Taylor rule raises the convergence speed of the real exchange rate. Conversely, raising the coefficient on the output gap or attending to the exchange rate in an open‐economy version of the Taylor rule slows down real exchange rate adjustment. In all cases, more rapid convergence comes at the cost of stronger initial real exchange rate misalignments in the wake of monetary policy shocks.     

Price Levels and Economic Growth: Making Sense of Revisions to Data on Real Incomes

The price surveys from the 2005 International Comparison Program (ICP) imply substantially lower levels of GDP at purchasing power parity (PPP) for many developing countries than prior estimates. While some observers have questioned the data, this paper argues that the pattern of changes in PPPs between ICP rounds makes economic sense. Consistently with the original Balassa–Samuelson model, more rapidly growing economies experienced steeper increases in their PPPs relative to official exchange rates. This effect was even stronger for poor countries. Taking account of this effect would reduce the need for such large data revisions when new ICP data become available.     

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.     

Does purchasing power parity hold sometimes? Regime switching in real exchange rates

Standard unit root tests are not very powerful in drawing conclusions regarding the validity of Purchasing Power Parity (PPP). Rather than asking whether PPP holds throughout the whole sample period, we examine, in this study, if PPP holds sometimes by employing Hamilton-type (1989) Markov regime switching models. When at least one of multiple regimes is stationary, PPP holds locally within the regime. There are indeed various reasons that we should expect that the persistence of real exchange rates changes over time. Employing five real exchange rates spanning more than 100 years, we find herein strong evidence that the strength of PPP varies during the sample periods and that there exist stationary regimes in which PPP holds. Throughout the article, we also make comparisons to previous Markov regime switching estimation results by Kanas (2006) on the same data series. The new Markov switching model selection criterion of Smith et al. (2006), which is devised especially for discriminating Markov regime switching models, unambiguously indicates a preference for the Hamilton-type Markov regime switching model employed in this study. We also find that the evidence for PPP is not much different across different nominal exchange rate arrangements.