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.     

真实汇率与真实利率差异-基于人民币真实汇率的实证研究

本文详细考察了人民币对美元、日元、港币和欧元的双边真实汇率、真实利率差异与进出口之间的统计关系,结果发现:(1)人民币真实汇率与真实利率差异间不存在显著且稳定的统计关系;(2)人民币真实汇率具有较强的"自回归"性,并且存在比较明显的非线性动态调整特征。因此,研究人民币真实汇率自身的特定生成机制可能更具有重要意义。     

实际汇率变动对商品国内价格的影响研究

本文从理论与实证两方面对实际汇率以及汇率波动性的变动对中国出口商品国内价格的影响进行了研究。理论分析强调了汇率对出口商品国内价格的影响方向取决于商品的需求价格弹性。对我国1990—2002年共12种商品平行数据的实证分析说明了汇率波动性增加可能导致部分初级产品国内价格水平的下降。全文分析强调了实际汇率波动性对国内商品价格的影响。     

UNEMPLOYMENT PERSISTENCE AND THE SUSTAINABILITY OF EXCHANGE RATE PEGS

It is commonly thought that an open economy can accommodate output shocks through either exchange rate or real sector adjustments. We formalize this notion by incorporating unemployment persistence into a two‐sided escape clause model of currency crises. We show that unemployment persistence makes a currency peg more fragile and undermines the credibility of the monetary authority in a dynamic setting. The fragility is captured by a devaluation premium in expectations that increases the average inflation rate when the currency peg is more vulnerable to ‘busts’ than ‘booms’. This interaction between macroeconomic and microeconomic rigidities suggests that a policy reform can only be consistent if it renders either exchange rates or the economy more flexible.     

A MODEL OF INFLATION TRANSMISSION IN AN EXCHANGE RATE TARGET ZONE

I incorporate an exchange rate target zone with intramarginal interventions in a small open economy model. Using the method of undetermined coefficients, I solve for the price level and the nominal exchange rate to determine how price shocks from the large economy affect the small open economy. The results show that the behaviour of inflation transmission within the band differs from the behavior of inflation transmission at the edge of the band of the target zone. Foreign shocks can affect local prices in both cases but the central bank can respond through market interventions within the band while it cannot do so at the edge. Near the edge of the band, a central bank has to intervene to stop the exchange rate from breaching the band. My model predicts that if the interventions are robust, then the exchange rate is mean reverting and an exchange rate target zone can insulate an economy from foreign price shocks. Based on the model, central bank interventions contribute to long‐run price stability in a target zone regime. Finally, I empirically test the model using unit root and cointegration tests, and present some policy implications.     

MODEL UNCERTAINTY AND EXCHANGE RATE VOLATILITY*

This article proposes an explanation for shifts in the volatility of exchange‐rate returns. Agents are uncertain about the true data generating model and deal with this uncertainty by making inference on the models and their parameters' approach, I call model learning. Model learning may lead agents to focus excessively on a subset of fundamental variables. Consequently, exchange‐rate volatility is determined by the dynamics of these fundamentals and changes as agents alter models. I investigate the empirical relevance of model learning and find that the change in volatility of GBP/USD in 1993 was triggered by a shift between models.     

REAL EXCHANGE RATE CYCLES AROUND ELECTIONS

We develop the implications of devaluation cycles for real exchange rates in a two-sector small open economy with a cash-in-advance constraint. Policy-makers are office-motivated politicians. Voters have incomplete information on the competence and the opportunism of incumbents. Devaluation acts like a tax, and is politically costly because it can signal the government is incompetent. This provides incumbents an incentive to postpone devaluations, and can lead to an overvalued exchange rate before elections. We compare the implied cycle of appreciated/depreciated exchange rates with empirical evidence around elections from Latin America.     

APPLICATIONS OF REAL EXCHANGE RATE ANALYSIS

This paper presents an approach for analyzing changes in the real exchange rate. It cites three views of the real exchange rate and outlines the complex forces that cause the rate to change. Using data from the International Monetary Fund's International Financial Statistics, the analysis then focuses on selected countries, each chosen because its experience reflects the operation of a principal force affecting the exchange rate. A summary of the experience of several countries during the 1970–1983 period illustrates the importance of the real exchange rate in the wake of inflationary episodes, oil crises, massive capital movements, and debt crises during that period. The analysis directs particular attention toward the central role that real exchange rate movements have played in the international debt crisis.     

UNDERSTANDING REAL EXCHANGE RATE MOVEMENTS WITH TRADE IN INTERMEDIATE PRODUCTS

We suggest that it may be ‘too easy’ to attribute real exchange rate movements to deviations from the law of one price. We show that it is immaterial whether one uses seemingly traded goods, nontraded goods, or even a single, unimportant consumer good, say beer. The ease of attributing the variation to any such deviations is explained using a model with intermediate goods trade. In the model, the stage of production determines the traded/nontraded distinction. We find empirical substantiation for the model: law of one price deviations lose explanatory power and, defined appropriately in terms of intermediate goods, relative prices matter.     

人民币真实汇率:概念、测量与解析

真实汇率的分类测算一直是深入展开人民币汇率实证研究的瓶颈.该文对真实汇率进行了详细的分类,比较了各种真实汇率之间的区别和联系,并利用1994?2002年的相关季度数据,测算了人民币支出法、成本法和贸易品衡量的真实汇率,最后,对测算得到的各种真实汇率进行了结构性解析.     

IMPERFECT INFORMATION AND DIFFERENCES IN HOME OWNERSHIP INVESTMENT

Abstract. We study the extent to which differences in home ownership investment are caused by differences in information known about the property. We study the advantages accruing to buyers who have complete information and who can pay less than the equilibrium price if sellers undervalue their properties. The reduction in home ownership investment can increase consumption or investment in other assets. We develop an empirical model to capture the gain to such buyers. We estimate this to have been 12.6%?27.6% of the equilibrium price of houses at maximum in the Tokyo metropolitan area during the 1980s.     

REAL EXCHANGE RATE,MERCANTILISM AND THE LEARNING BY DOING EXTERNALITY

This paper examines the degree to which the learning by doing (LBD) externality calls for an undervalued exchange rate. We obtain mixed results. For an economy where the LBD externality operates in the traded sector, real exchange rate undervaluation may be used to internalize this externality, if the LBD calls for subsidizing employment in the traded sector. If the LBD externality is embodied in aggregate investment, the optimal policy calls for subsidizing the cost of capital in the traded sector, and there is no room for undervalued exchange rate policy.     

FDI,SECTORAL OUTPUT AND REAL EXCHANGE RATE DYNAMICS UNDER FINANCIAL OPENNESS

This paper adopts an alternative approach to the study of the impact of capital inflow on the real exchange rate by foremost, analysing the effect of FDI inflow on the ratio of tradables to nontradables, and then estimating the relationship between the tradable‐nontradable ratio and the real exchange rate, while accounting for the role of financial openness. Based on data for a group of developing countries, the findings show that an increase in FDI inflow is associated with a decrease in the tradable‐nontradable ratio, and that an increase in the tradable‐nontradable ratio leads to a depreciation of the real exchange rate; this effect being greater with an increase in financial openness. This suggests that an increase in FDI inflow could result in an expansion of the nontradable sector, which would be associated with a greater appreciation of the real exchange rate under a higher level of financial openness.     

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。     

购买力平价非线性检验方法的进展回顾及其对人民币实际汇率的应用

单位根检验下实际汇率通常的非平稳性与购买力平价相矛盾,然而考虑到国际套利交易成本,实际汇率可能遵循某种非线性均值回复行为。本文对近年来国际上对实际汇率的非线性均值回复领域的研究进行了回顾和总结,并选取带有约束的ESTAR模型对人民币实际汇率的非线性行为进行了实证分析,对其均值回复速度进行了估计,并给出了购买力平价下的均衡汇率。结果支持了人民币与美元的购买力平价关系。     

CHINA'S EQUILIBRIUM REAL EXCHANGE RATE: A COUNTERFACTUAL ANALYSIS

Abstract.  China's 'equilibrium' real effective exchange rate is explored using an adaptation of the Devarajan-Lewis-Robinson three-good general equilibrium model under a variety of assumptions about the balance of trade. The absence of secondary indices of import and export prices necessitates their construction from trade data. Some undervaluation is suggested in the lead-up to and during the financial crisis, due in part to an extraordinary accumulation of foreign reserves following exchange rate integration in 1994. If, instead, China had run a more typical trade balance prior to the crisis its real effective exchange rate would have been higher by about a tenth.     

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.