我国两部门劳动生产率增长及国际比较(1978-2005)-巴拉萨萨缪尔森效应与人民币实际汇率关系的重新考察

依据巴拉萨萨缪尔森效应假说,一国经济追赶伴随的可贸易部门劳动生产率的“相对相对增长”会派生本币实际汇率升值趋势。本文对改革开放以来我国可贸易与不可贸易部门劳动生产率各自增长、相对增长、国际比较增长等指标进行系统估测,发现上述结构性生产率指标与人民币实际汇率之间的关系存在与巴拉萨萨缪尔森效应假说推论一致的经验证据;利用人均或劳均产出等总量性生产率指标检验这一理论对人民币实际汇率的解释力,则存在理论假说变量与度量指标选择不兼容的问题。     

我国两部门劳动生产率增长及国际比较（1978-2005）——巴拉萨-萨缪尔森效应与人民币实际汇率关系的重新考察

依据巴拉萨-萨缪尔森效应假说，一国经济追赶伴随的可贸易部门劳动生产率的“相对相对增长”会派生本币实际汇率升值趋势。本文对改革开放以来我国可贸易与不可贸易部门劳动生产率各自增长、相对增长、国际比较增长等指标进行系统估测，发现上述结构性生产率指标与人民币实际汇率之间的关系存在与巴拉萨-萨缪尔森效应假说推论一致的经验证据；利用人均或劳均产出等总量性生产率指标检验这一理论对人民币实际汇率的解释力，则存在理论假说变量与度量指标选择不兼容的问题。     

“富人社区效应”还是巴拉萨-萨缪尔森效应?——一个基于外生收入的实际汇率理论

作为对国际价格水平差异的标准解释,巴拉萨—萨缪尔森(BS)效应依赖于国内劳动力同质假设和跨部门工资套利行为。本文提出了一个与之相对的"富人社区效应",可以在一国劳动力异质的条件下解释为什么富国的非贸易品价格较高。其直观解释是,如果一个国家拥有一个"富有居民"群体(比如高生产率的贸易品部门劳动者,或者全球贸易资源的所有者),而这个群体通过国际市场获得的硬通货总收入相对于该国总人口而言较高的话,其需求将抬高该国非贸易品价格。本文进而指出,关于BS效应的实证文献所广泛采用的两种基本统计检验,实际上无法区分BS效应与富人社区效应,这就对该领域相当一部分实证文献的正确性提出了质疑。此外,富人社区效应也有别于林德效应。     

人民币实际汇率与中国两部门生产率差异的关系——基于巴拉萨—萨缪尔森效应的实证分析

长期实际汇率主要取决于经济的供给面,即生产率的变化,这一思想体现在巴拉萨—萨缪尔森效应的模型中。文章从巴拉萨—萨缪尔森效应的理论出发选择合适的计量模型,然后以制造业和服务业分别表示贸易品部门和非贸易品部门,通过差分回归模型和协整检验来分析人民币实际汇率与中国两部门间生产率差异之间的关系,回归结果符合巴拉萨—萨缪尔森效应的结论。在1980~2004年间,人民币实际汇率的变动趋势与中国两部门间的生产率差异变化趋势基本相符:非贸易品部门生产率提高幅度大时,人民币趋向于贬值;而贸易品部门生产率提高幅度大时,人民币实际汇率趋向于升值。     

实际外部财富、劳动生产率与人民币实际汇率——基于跨期一般均衡理论的实证研究

本文首先构建关于实际外部财富、劳动生产率、贸易条件与实际汇率关系的跨时一般均衡理论模型,然后利用1981-2009年相关时间序列数据,检验中国实际外部财富、贸易条件以及国内外两部门劳动生产率对人民币实际汇率的影响。结果表明,从长期看,中国实际外部财富的急剧攀升会引发人民币实际汇率快速升值;中国贸易部门相对非贸易部门劳动生产率上升会促使人民币实际汇率升值,而国外贸易部门相对非贸易部门的劳动生产率提高则会降低人民币实际汇率,净效应表现为劳动生产率并不能解释20世纪80年代以来人民币实际汇率的长期波动;中国贸易条件对人民币实际汇率的影响不明显。短期内,中国实际外部财富对人民币实际汇率的作用关系与长期一致。根据上述结论,本文提出了保持人民币实际汇率相对稳定的政策建议。     

人民币实际汇率变动趋势分析——基于巴拉萨-萨缪尔森效应

本文结合我国二元经济结构的特殊国情,在对标准的巴拉萨-萨缪尔森模型拓展的基础上,运用我国与美国的数据对人民币实际汇率的变动趋势进行了实证检验.蛄果表明,在标准的和拓展的两种模型下,人民币实际汇率均存在显著的巴拉萨-萨缪尔森效应,即我国与美国间可贸易部门和不可贸易部门生产率的差异决定了两国间相对物价水平的差异.其中,拓展模型更加适应我国实际国情,其效应比标准模型显著得多.巴拉萨-萨缪尔森效应假说的分析框架对揭示人民币实际汇率升值的必然趋势有很强的解释作用.     

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。     

出口贸易及其名义汇率与实际汇率风险——基于中国对主要贸易伙伴国面板数据的实证研究

本文采用中国对28个主要贸易伙伴国出口的面板数据,对比分析了2005年汇改前后人民币名义汇率波动风险和实际汇率波动风险对中国出口的影响.通过实证研究后发现:无论是汇改前还是汇改后的人民币实际汇率波动风险对中国的出口均未产生显著影响;而汇改后,人民币名义汇率波动风险却对中国的出口产生了显著的负向影响.由此可见,相对于实际汇率波动风险而言,名义汇率波动风险对中国出口的影响更显重要.     

国际购买力平价和简化净出口函数:中国实证

文章从国际交换价值的角度研究了一价定律的内涵,提出了国际购买力平价理论,并且证明了国际购买力平价是严格意义上的均衡汇率。2009年人民币贸易品购买力平价为6.70元人民币/美元,而国际购买力为5.49元人民币/美元,后者可作为确定人民币汇率处于均衡水平的参考。文章还简化了净出口函数,得出如下主要结论:(1)近年我国的贸易顺差大幅增长,主要是因为价格贸易条件恶化,其次是因为J曲线效应;(2)当前的首要任务是改善我国的价格贸易条件以提高国际购买力平价,而不是调整人民币汇率。     

人民币汇率变动对中国出入境旅游市场的影响研究——基于主要客源国和目的地国家面板数据的分析

论文构建了包含实际汇率变动和居民收入水平两个因素的国际旅游需求理论模型,并以2005年人民币汇率制度改革以来,中国的15个主要客源国与11个主要目的国的面板数据进行了计量分析。结果表明:第一,居民收入和实际汇率变动是决定出入境旅游市场的最主要因素,可以解释国际旅游市场的大部分波动现象;第二,出入境旅游市场对收入的弹性大于对实际汇率的弹性,因此,在两个因素变动率相同的情况下,价格效应小于收入效应;第三,不同国家的货币对人民币汇率变动程度不同,带来的影响也不同。     

Product Variety and Real Exchange Rates: The Balassa-Samuelson Model Reconsidered

This paper introduces product variety into the Balassa-Samuelson model in order to extend the model of real exchange rate determination. With product differentiation, real exchange rates depend not only on the relative price of nontradables to tradables but also on relative prices among tradables. This paper identifies a new factor that determines the extent of variety, termed Infrastructural Technology, and that affects real exchange rates not through the relative price of nontradables but through relative prices among tradables. This paper also conducts empirical tests, and the results of these tests support the model. Received May 31, 2001; revised version received March 20, 2002 Published online: April 30, 2003     

Real exchange rate dynamics in transition economies

The paper analyzes the phenomenon of real exchange rate appreciation that has characterized transition economies. It is shown that the real exchange rate—measured as the relative price of tradables in terms of non-tradables—is affected by adverse initial conditions and structural reforms only in the first 5 years of the transition process. After that period, the so-called Balassa–Samuelson effect seems to dominate the real exchange rate determination. The paper discusses the implications for exchange rate policy and concludes that while for countries of the former Soviet Union a flexible exchange rate regime seems desirable, for Central and Eastern Europe countries a stable exchange rate and even an early move to the adoption of the euro should be considered.     

Understanding International Price and Consumption Disparities

This study proposes a new measure of the tradability of 120+ commodities based on price dispersion. This approach is used to construct price indices of tradables and non-tradables for 150+ countries. The expenditure share of tradables is lower for richer countries, while the relative price of non-tradables, which plays an important role in the determination of real exchange rates, is higher. Secondly, a common-factor approach (based on principal components) is introduced to compress the large volume of information on prices and quantities consumed globally. We find that cross-commodity correlations are higher for prices than for consumption. In addition, income is responsible for most of the variation in the first principal component of consumption but explains less of the first price component. This suggests consumption are driven primarily by domestic factors, while prices are determined by factors outside the country, along the lines of the Purchasing Power Parity theory.     

人民币实际汇率与中国经济增长的关系研究——基于边限检验法的巴拉萨-萨缪尔森效应检验

以Faria和Leon—Ledesma简化的巴拉萨-萨缪尔森模型为基础,运用Pesaran、Shin和Smith的边限检验法实证分析了1980—2007年期间人民币实际汇率与中国经济增长之间是否存在长期稳定关系。研究发现：改革开放以来,中国经济增长并没有伴随着人民币实际汇率的升值,巴拉萨-萨缪尔森效应在中国不成立。产生这一结果的原因在于：对高估的汇率进行贬值是中国经济高速增长的前奏,非市场化的劳动力市场阻断了BS效应中价格传递机制的发生。但是,如果中国经济保持较高的增长率,人民币实际汇率在长期中将经历一个升值过程。     

The policy (in)effectiveness of government spending in a dependent economy

This paper analyses the policy effectiveness of government spending in a two-sector open economy whose output and expenditure is comprised of tradables and non-tradables. This framework reveals that government spending on either tradables or, more normally, on non-tradables widens the external deficit, yet how the real exchange rate behaves depends, in the first instance, on in which sector the public spending occurs. It also shows that, irrespective of where government spending falls, there appears to be no significant short run boost to overall output and hence employment a priori, although empirically actual impact would depend on the elasticities of tradable and non-tradable output with respect to the real exchange rate. Furthermore, fiscal stimulus is shown to be unambiguously ineffective if deemed unsustainable by foreign lenders, or implemented under a fixed exchange rate regime with limited capital mobility.     

Industrial structure,competitiveness, and trade

This paper examines the effect of sector-specific growth on real exchange rates, competitiveness, and the trade balance. Growth and accumulation in export- and import-competing industries exert their primary effect on the trade balance, while the direct effect of accumulation in non-tradables is on the real exchange rate. Thus, exchange-rate policies that are incompatible with non-tradables equilibrium are bound to fail. Furthermore, growth policies with strong biases toward tradables are often inferior to more balanced strategies, due to their adverse implications for real-exchange- rate movements and the trade balance.     

The Law of One Price: A Canada/U.S. exploration

The paper examines whether arbitrage tends to equalize commodity prices for internationally traded homogenous products. It also investigates whether the increasing integration of North American markets has reduced price differences over time, and tests the validity of the so-called Law of One Price. We find that price differences for homogenous tradables between Canada and the U.S. are smaller than those for differentiated tradables and non-tradables, and are statistically insignificant over the period 1985 to 1999. We find no support for the notion that the increasing integration of North American markets due to trade liberalization has reduced price differences between Canada and the United States. Instead, the shifts in the price differences (expressed in the same currency) generally reflected fluctuations in the exchange rate. Canadian prices adapt with a lag to U.S. price changes that are brought about by changes in the exchange rate.     

Monetary Shocks and Real Exchange Rate Dynamics: a Reappraisal

This paper proposes a two‐country general‐equilibrium model incorporating a tradable sector with pricing‐to‐market as well as a nontradable sector. In that case, real exchange rate fluctuations arise from two sources: changes in the relative price of traded goods, that exemplify deviations from the law of one price, and movements in the relative price of traded to nontraded goods across countries. Our framework sheds light on the propagation mechanisms through which monetary shocks affect the real exchange rate. More specifically, the two components respond in opposite directions to monetary disturbances, which is consistent with data. Besides, the introduction of nontraded goods does not alter the predictive power of monetary shocks because the presence of nontraded goods magnifies the response of the deviation from the law of one price.     

Does Productivity Growth Appreciate the Real Exchange Rate?*

Revisiting the time‐honored link between productivity growth and the real exchange rate, we find that higher labor productivity tends to appreciate the real exchange rate, consistent with the traditional view. Contrary to the traditional view, however, we find that the positive productivity effect is transmitted through the relative price between tradable goods, rather than through the relative price between tradables and nontradables. Moreover, higher total factor productivity is found to often depreciate the real exchange rate. These latter two pieces of evidence, combined with the conceptual strength of total factor productivity over labor productivity as a productivity measure, call for further refinement of the conventional view regarding the effect of productivity on the real exchange rate.