人民币均衡汇率最优决定研究

随着经济全球化和国际贸易、国际结算的迅猛发展,汇率成为经济中一个主要变量,影响着一国的经济,被企业社会所广泛关注。均衡汇率模型的核心是分析基本经济因素变化对均衡汇率的影响,并利用它们之间存在着的系统联系来估计均衡汇率。     

The Real Equilibrium South African Rand/US Dollar Exchange Rate: A Comparison of Alternative Measures

This article indicates how different measures of the real exchange rate, i.e., the exchange rate adapted for cost inflation, price inflation and labour costs, influence the equilibrium view and misalignment of the South African rand/US dollar exchange rate. The approach followed is based on the behavioural equilibrium exchange rate approach by Clark and MacDonald (1998), where the exchange rate is influenced by a number of fundamental and transitory factors. The real equilibrium exchange is estimated by using a single equation regression and a number of key explanatory variables. To determine the long-run relationship a Vector Error Correction Mechanism is used.     

人民币汇率的均衡与失调

人民币汇率波动趋势表现出了"U"型特征,推动其升值的主要因素是经常项目盈余导致的净对外资产余额的不断增加、FDI资本的大量流入和贸易品部门劳动生产率的较快提高。人民币均衡汇率在1985年～1989年表现为高估,在1990年～2009年表现为低估。人民币均衡汇率低估具有逐渐收敛的特征,从而人民币均衡汇率继续升值的空间已经很小了。人民币汇率机制的完善不仅要考虑到影响汇率的主要因素,也要考虑潜在因素。     

中国货币需求均衡水平调节的实证研究

通过构建以收入、股票市场市值、利率、预期通货膨胀率以及汇率为自变量的货币需求计量模型,本文运用协整检验、误差修正模型和脉冲响应函数,以我国1994年第一季度至2009年第二季度的季度数据为样本,对我国货币需求的均衡水平调节状态进行了实证研究。研究表明,以上变量与实际货币需求存在长期稳定的均衡关系,货币需求在短期内存在向长期均衡水平调整的自发调节机制,各自变量对货币需求的影响程度各异且具有不同的动态过程。最后,根据实证结果提出了一些政策建议。     

竞争力平价与人民币均衡汇率研究

传统的汇率决定理论认为，一国货币汇率的衡水平是由购买力平价、利率平价和货币相对供求等决定的。大多数实证研究表明，这些均衡汇率理论只是强调单一因素，同现实相距甚远。本文构建了多因素国际竞争力平价模型，认为均衡实际汇率随着国际竞争力的相对变化而变化，国际竞争力相对提高，该国货币升值，反之则反之。本文利用主成分分析法，从影响人民币汇率的多因素中构造国际竞争力这个指标，实证研究表明人民币实际有效汇率与国际竞争力之间存在协整关系，然后再基于这个协整关系式计算人民币的均衡实际有效汇率，并据以判断人民币汇率偏离均衡水平的程度。     

基于均衡汇率角度的人民币升值问题分析

在人民币不断升值的大背景下,关于人民币升值的合理性及临界点的探讨已成为热门话题。人民币汇率的合理性问题归根到底是实际汇率是否偏离均衡汇率的问题。在考虑中国转型经济特点和对基本经济因素进行分析后,建立了人民币均衡汇率模型,将估计出的均衡汇率与实际有效汇率进行比较分析,确认人民币确实存在一定的低估,但失调程度不大。因此对于人民币升值我们应保持在适度的范围内,而不应屈从于外在压力。在此基础上进一步提出了人民币汇率调整的方法建议。     

关税、货币政策与中国实际均衡汇率

加入WTO后 ,降低进口品关税等措施将影响人民币均衡汇率水平 ,同时开放经济下国内货币政策、财政政策等宏观经济政策调整也会改变均衡汇率水平。本文运用动态一般均衡的方法 ,探讨中国在加入世界贸易组织之后 ,关税税率调整、货币供应量增长率改变、财政政策调整等措施对实际均衡汇率的长期效应。把货币引入生产函数和消费者的效用函数 ,我们扩展了由Turnovsky提出的两商品资本积累模型 ,利用参数赋值(calibration)的方法进行了均衡状态下的比较静态分析。研究发现降低进口品关税使人民币面临贬值压力 ,而政府增加税收 ,减少对贸易品的消费则有利于人民币的保值和升值。实证研究结果表明 :国外实际利率水平下降 ,实际货币供应量增长率降低都将引起人民币均衡汇率贬值。     

Policy Bias and Agriculture: Partial and General Equilibrium Measures

The paper examines the impact of industrial protection, agricultural export taxes, and overvaluation of the exchange rate on the balance between the agricultural and nonagricultural sectors. Various agricultural terms-of-trade indices are constructed to measure the policy bias against agriculture in a computable general equilibrium (CGE) framework and compare the results with earlier partial equilibrium measures. Our results indicate that the partial equilibrium measures miss much of the action operating through indirect product and factor market linkages, while overstating the strength of the linkages between changes in the exchange rate and prices of traded goods on the agricultural terms of trade.     

理解人民币汇率的均衡、失调、波动与调整

本文区分产品市场和资产市场均衡汇率、失调和波动,得出了人民币实际汇率的短期和长期均衡值,发现人民币不存在严重高估和低估,只是产品市场上近期实际汇率低估且程度在加深,而资产市场上高估;产品市场上实际汇率长期波动主要源自相对供给冲击,资产市场上短期波动则主要来自自身调整机制和相对货币供给冲击。政策含义表明:资本账户保持一定管制降低了风险溢价,允许决策者调整短期实际汇率波动,扩大波动幅度减缓汇率升值预期,消除资产市场上短期失调;长期波动决定因素使得决策者只能以产品市场长期均衡汇率为升值目标汇率,在需求政策效果不明显的情况下,可以考虑供给管理政策实现内外经济均衡。     

人民币均衡实际汇率的估计与实际汇率错位的测算

基于均衡实际汇率理论 ,本文应用多种经济计量方法实证分析了自 2 0世纪 50年代中期至 2 0 0 0年期间人民币实际汇率状况 ,估计出人民币均衡实际汇率 ,进而测算了实际汇率错位状况。研究结果表明 :在计划经济时期 ,人民币实际汇率长期被高估。改革开放后 ,均衡实际汇率长期处于贬值状况 ,现实的实际汇率长期被低估。在亚洲金融危机期间 (特别是 1 997和 1 998年 ) ,人民币实际汇率出现了明显的高估。 1 999年这种高估状况得到部分缓解 ;2 0 0 0年出现了根本性好转。在现实中 ,1 999年以后中国出口的快速增长也证实了这一结论。     

The internal and external equilibrium exchange rate of RMB: 1982–2010

This paper estimates fundamental equilibrium exchange rate of RMB based on internal and external balance of China’s economy. The findings indicate that RMB real exchange rate is overvalued in the period of 1982–1991, but the extent of the undervaluation has an enlarging trend since 2004. Then, we put forward a new theory called “Prior Equilibrium Exchange Rate” and apply it to RMB, finding that real effective exchange rate of RMB need to be appreciated about 20% between 2008 and 2010, and the appreciation range of bilateral nominal exchange rate between RMB and the world’s key currencies depends on the objective functions of the government. Policy implication indicates that decision makers need to refer to equilibrium exchange rate which is derived from different theories and to make great efforts to adjust it towards equilibrium level and establish RMB “Prior Equilibrium Exchange Rate.” Meanwhile, policymakers should implement a potential objective interval system of exchange rate appreciation. The appreciation range of bilateral exchange rate of RMB against USD from 2008 to 2010 may be set between 6% to 10%.     

Exchange rate and long run equilibrium in transition economies

The purpose of this paper is to calculate pruchasing power parity rates and the real exchange rate using several methods of calculation to estimate long-run equilibrium real exchange rates in transition economies, mainly in Eastern European countries considered in transition, such as Poland. The authors calculate different measures of exchange rate misalignment (absolute and relative deviations from long-run equilibrium). Each measure is calculated using different price indices, which include consumer price indices, GDP deflactor, and unit labor cost. The expected values of these variables are used. To calculate the long-run equilibrium, different methods such as an error correction equation and a forward-looking model are utilized, and again, the expected values of the variables are introduced along with new variables. The estimation of the long-run cointegration equation of the equilibrium real exchange rate and the corresponding dynamic error correction specification strongly corroborates the model and produced fairly consistent results across the countries under study. Using appropriated proxies, the estimated long run equations were used to derive indices of the equilibrium real exchange rate.     

人民币行为均衡汇率及错位程度的测算研究:1978-2006

基于行为均衡汇率理论,应用多种计量经济方法对1978-2006年期间人民币实际汇率状况进行的实证分析结果表明:从名义汇率错位情况来看,1995年及以前的名义汇率都是高估的,1996-2005年的名义汇率基本上都是低估的,且低估程度在2000年达到顶点,然后逐渐下降;2005年约低估4.7%,但到2006年,受2005年人民币汇率改革的影响,名义汇率反而高估约0.9%.从实际汇率错位情况来看,1993年及以前的人民币实际有效汇率都是高估的,1994年以后,随着出口的快速增长以及美元的不断贬值,人民币实际有效汇率相对于行为均衡汇率低估程度总体上不断扩大,2005年约低估16.3%;到2006年,受2005年人民币汇率改革的影响,人民币实际有效汇率低估程度有所下降,约低估15.3%.     

人民币均衡汇率错位对进出口的影响——基于协整理论和二元选择模型的实证分析

本文基于协整理论，运用单位根检验、二步法、误差修正模型和二元选择Probit和Logit模型，对人民币均衡汇率错位对进、出口的影响进行了实证分析。本文的创新之处：在模型中引入了反映我国“二元经济结构”特征的三个控制变量——工农业对GDP的贡献度之差，城乡居民家庭恩格尔系数之差，第一产业和第二产业人口构成之差参与回归检验，显著性很强，使得模型更可信和稳定。结论表明：人民币均衡汇率错位对进、出口均有不同程度的负面影响，对进口的负面影响稍大于出口；人民币均衡汇率错位对进口向长期均衡水平的调整比出口更加有利；人民币均衡汇率高估错位幅度越大，越有利于进口；低估错位幅度越大，越有利于出口。     

泰勒规则与我国货币政策反应函数——基于潜在产出、自然利率与均衡汇率的研究

潜在产出、自然利率和均衡汇率是货币政策决策和效果评价的重要参考基准。通过状态空间模型对我国潜在产出、自然利率和均衡汇率水平进行联合估计,并在此基础上通过建立一个包含汇率因素的"混合型"泰勒规则对我国货币政策反应函数进行估计,结果显示,我国货币政策行为对通货膨胀、产出缺口和汇率波动作出了较为及时和稳定的反应,但货币政策的前瞻性有待提高。     

Comparing Sunspot Equilibrium And Lottery Equilibrium Allocations: The Finite Case*

Sunspot equilibrium and lottery equilibrium are two stochastic solution concepts for nonstochastic economies. We compare these concepts in a class of completely finite, (possibly) nonconvex exchange economies with perfect markets, which requires extending the lottery model to the finite case. Every equilibrium allocation of our lottery model is also a sunspot equilibrium allocation. The converse is almost always true. There are exceptions, however: For some economies, there exist sunspot equilibrium allocations with no lottery equilibrium counterpart.     

Thousands of BEERs: Take your pick

This paper explores the robustness of behavioral equilibrium exchange rate (BEER) models. We highlight the importance of model uncertainty, and employ real exchange rates computed from price‐level data to explore robustness to the inclusion of country fixed effects. The estimated coefficients—and therefore also the implied equilibrium values—are sensitive to the combination of variables included in the model, and to the inclusion of fixed effects. We identify several variables that exhibit a robust link with real exchange rates across specifications. Our findings can help policymakers in understanding the uncertainty associated with estimates of equilibrium exchange rates.     

Equilibrium Exchange Rates in New EU Members: External Imbalances versus Real Convergence

In new EU members, the accumulation of net foreign liabilities has gone hand-in-hand with real exchange rate appreciations, contrary to intuition. This may be due to the induced effect that capital inflows on productivity and competitiveness (Balassa-Samuelson effect). An extended empirical model comprising relative productivity and net foreign assets is well-suited to capture this indirect, opposite effect of liabilities accumulation on the equilibrium exchange rates for the three largest economies: Poland, Hungary and Czech Republic. The model makes it possible to estimate equilibrium exchange rates and misalignments. Going forward, sustaining high productivity growth will be essential to ensure a smooth transition towards euro membership.     

进出口贸易增长、人民币汇率波动与贸易均衡汇率决定——基于两国模型的理论与政策分析

非市场化商品和劳务、技术进步与人口增长速度差异等因素的存在,使得准确计算人民币均衡汇率面临诸多困难;只有当两国的技术进步增长率与人口增长率之和相等且两国的贸易量为零增长速度时,才会出现零波动幅度的贸易均衡汇率;在两国或者多国构成的国际经济体系中,在一定条件下可能存在贸易汇率波动均衡,但会表现出不同的特征;应根据我国贸易汇率波动均衡特征制订和实施更具灵活性和弹性的贸易政策和汇率政策.     

Modelling the Long–run Real Effective Exchange Rate of the New Zealand Dollar

In this paper we use the behavioural and permanent equilibrium exchange rate approaches to produce long–run equilibrium exchange rates for the effective real exchange rates of the New Zealand dollar. We demonstrate that a well founded measure of the equilibrium value of the dollar may be recovered from a relatively small set of fundamental variables and that this can be used to produce an assessment of the dollar in terms of periods of misalignment.