实际汇率与居民消费风险分担的动态关系——基于预期的视角

通过考虑居民预期行为的作用，实际汇率与居民消费风险分担的动态关系是一个附带预期的渐进调整过程。在利用东亚9个主要经济体的数据对该关系进行研究后发现：（1）东亚各国居民之间的消费风险分担程度较低，但是从2000年之后，居民消费风险分担程度在逐渐提高；（2）实际汇率变动基本上没有平滑东亚各国（地区）居民的消费变动；（3）持有静态预期行为的居民朝向长期消费风险分担均衡的调整程度较小，并且该调整速度较慢，同时持有理性预期行为的居民、持有适应性预期行为的居民背离长期消费风险分担均衡的调整程度较大，并且该调整速度较快，这是造成非完全消费风险分担均衡的重要原因。     

PPP: <Emphasis Type="Italic">Delusion</Emphasis> or <Emphasis Type="Italic">Reality</Emphasis>? Evidence from a Nonlinear Analysis

In this paper we analyze the validity of the purchasing power parity (PPP) in a nonlinear framework using data for 18 bilateral US dollar exchange rates. Following Enders and Ludlow (2002), we use unit root and cointegration tests that do not assume a specific nonlinear adjustment. We find evidence of non-linear mean reversion in deviations from the PPP equilibrium in 11 out of 18 currencies. Additionally, to disentangle the respective contribution of exchange rate and prices to the adjustment toward the long run equilibrium, we estimate a Vector Error Correction Model. According to our empirical analysis, there exists a nonlinear mechanism to correct for deviation from the PPP equilibrium that comes mainly from the exchange rates. This is consistent with theoretical arguments on international goods markets under transaction costs as well as with an emerging strand of empirical literature. These results highlight the importance of neglecting the possibility of nonlinearity in the debate about the PPP and provide empirical evidence that supports the scenario of the PPP hypothesis as a reality.     

人民币实际有效汇率变动的中国产业结构升级效应

本文在劳动力市场动态均衡模型的基础上,通过构建厂商利润最大化模型,验证了汇率变动影响产业结构调整的传导机制;然后通过协整检验、误差修正模型检验和脉冲响应分析进一步对传导机制进行验证,并具体考察了1981～2010年度人民币实际有效汇率变动对中国产业结构调整的影响。研究结果表明:人民币实际有效汇率变动能够通过价格水平、对外贸易(出口和进口)和FDI 3条路径影响中国的产业结构调整。其中,价格水平和进口是两条重要路径,FDI的影响作用并不显著。人民币实际有效汇率升值能够促进中国产业结构的优化升级。     

Testing price-exchange rate noncausality: Results from a vector error correction model

Previous tests of the martingale property of the exchange rate have examined the random walk property of the exchange rate or have tested for Granger causality of the exchange rate by macroeconomic variables. Interestingly, if purchasing power parity (PPP) holds in the long run, causality tests should be conducted by estimating a vector error correction model which includes price levels. This paper conducts exchange rate causality tests employing vector error correction models and finds evidence that the Swiss exchange rate is Granger caused by lagged deviations in PPP and, hence, is Granger caused by prices.     

Inflation Transmission in Greater China

This paper examines inflation dynamics in Greater China. Using an asymmetric error correction model, we investigate how inflation in Hong Kong and Macao are related to inflation in Chinese Mainland. Our results based on data from July 1997 to December 2012 reveal that a long‐term equilibrium relation exists between inflation in Chinese Mainland and inflation in both Hong Kong and Macao, the two Special Administrative Regions of China. The degree of inflation pass‐through is higher for Macao than for Hong Kong. Moreover, we find no evidence of asymmetries in either Hong Kong and Macao's adjustment speeds towards long‐run equilibrium or in the short‐run pass‐through of accelerating or decelerating inflation in the Mainland. Collectively, our results show a close relationship among price dynamics of the three economies and call for a reconsideration of the exchange rate anchor in the Greater China Region.     

The common trend and common cycle of exports and the real exchange rate: Empirical results from Swiss data

Conclusion This paper contains an empirical analysis of the relationship of Swiss goods exports, the real exchange rate and world trade, using the common-trend-common-cycle methodology. This exercise shows that the trend and cyclical dependence of these variables are strongly different: exports and the real exchange rate exhibit a positive long-run or trend dependence of world trade whereas the short-run or cyclical relationship of exports to the real exchange rate is strongly negative with approximately a unit elasticity. These results, which differ strongly from standard dynamic regression or error correction estimates, can be interpreted as follows. In the short run we observe the strong negative cyclical relationship between exports and the real exchange rate, which we expect from short-run macroeconomic models with sticky prices. If we make the reasonable assumption that short-run real exchange rate movements are exogenous to exports and, for instance, caused by monetary policy then we come to the conclusion that cyclical real exchange rate variations lead to strong export cycles. However, in the long run, there is a completely different positive comovement of these two variables, which are both driven by the world trade trend. This common trend of exports and the real exchange rate can be understood as an equilibrium reaction of both variables, price and quantity of the exported goods, to exogenous changes in world trade given a production technology available for the country.     

Exchange rate regimes and real exchange rate volatility: Does inflation targeting help or hurt?

This paper revisits the comparison of the effects of inflation targeters versus hard fixers and intermediate exchange rate regimes. In particular, we are interested in exploring the impact of inflation targeting (IT) on real effective exchange rate (REER) volatility for a panel of 62 developing countries over the period 2006–2012. We also analyze the impact of IT regimes on REER in terms of its two component parts, i.e. relative tradable prices across countries as well as sectoral prices of tradables and nontradables within countries. The paper accounts for self-selection concerns regarding policy adoption and examines the effects of commodity exports and foreign exchange intervention. Notably, IT regimes seem to have experienced greater REER volatility, largely driven by external prices in developed countries. For developing countries, IT regimes show no difference in REER volatility, though there is some evidence that they have lower volatility in internal prices.     

Testing for cointegration with threshold effect between stock prices and exchange rates in Japan and Taiwan

This paper empirically investigates the exchange rate effects of the New Taiwan dollar against the Japanese Yen (NTD/JPY) on stock prices in Japan and Taiwan from January 1991 to Mach 2008. Our study employs the newly threshold error-correction model (TECM) elaborated by Enders and Granger [Enders, W., Granger, C.W.F., 1998. Unit-root tests and asymmetric adjustment with an example using the term structure of interest rates. Journal of Business Economics & Statistics 16, 304–311] and Enders and Siklos [Enders, W., Siklos, P.L., 2001. Cointegration and threshold adjustment. Journal of Business Economics & Statistics 19, 166–176], assuming the nature of the relationship between the variables is on the basis of non-linearity. The empirical evidence suggests that there is a long-run equilibrium relationship between NTD/JPY and the stock prices of Japan and Taiwan during the time period investigated. However, an asymmetric threshold cointegration relationship only exists in Taiwan’s financial market. Furthermore, we extend our research by taking into account the effect of the U.S. exchange rate specifically on Taiwan’s financial market. This research also finds a long-term equilibrium and asymmetric causal relationships between NTD/USD and the stock prices of Taiwan. In addition, the results of TECM Granger-Causality tests show that no short-run causal relationship exists between the two financial assets considered for both countries’ cases. However, in the long run a positive causal relationship running from either the Japan or U.S. exchange rate to the stock prices of Taiwan strongly argues for the traditional approach.     

Fundamental equilibrium exchange rates and exchange rate dynamics

This paper examines whether there is a tendency for actual exchange rates to return to their fundamental equilibrium exchange rates (FEERs) when the latter are estimated based on popular exchange rate models. Co-integration tests and unit root tests are applied. There is little evidence that the exchange rates of Japan and Germany have a reversion to the purchasing-power-parity (PPP) rates or Williamson's FEERs or the underlying external and internal balance (UEI) FEERs.     

The effect of foreign ownership restrictions on stock price dynamics

The Effect of Foreign Ownership Restrictions on Stock Price Dynamics. —This paper uses Finnish data to explore the impact of foreign ownership restrictions on the dynamic properties of domestic stock prices. These restrictions create unrestricted stocks (foreign and domestic ownership) and restricted stocks (domestic ownership). Unrestricted share prices are significantly more volatile than those of restricted shares but their means are not significantly different from each other. The returns on the two types of shares are found to be generated by an error correction model. These results support the hypothesis that the unrestricted share prices tend to overshoot relative to equilibrium with the arrival of new information.     

Vertical Trade,Exchange Rate Pass-Through,and the Exchange Rate Regime

We compare the welfare of different combinations of monetary and currency policies in an open-economy macroeconomic model that incorporates two important features of many small open economies: a high level of vertical international trade and a high degree of exchange rate pass-through. In this environment, a small economy prefers a fixed exchange rate regime over a flexible regime, while the larger economy prefers a flexible exchange rate regime. There are two main causes underlying our results. First, in the presence of sticky prices, relative prices adjust through changes in the exchange rate. Multiple stages of production and trade make it more difficult for one exchange rate to balance the whole economy by adjusting several relative prices simultaneously throughout the vertical chain of production and trade. More specifically, there is a tradeoff between delivering an efficient relative price between home and foreign final goods and delivering an efficient relative price between home and foreign intermediate goods. Second, because the small economy faces a high degree of exchange rate pass-through under a flexible regime, it suffers from a lack of efficient relative prices in vertical trade. The larger economy, however, does not face this problem because its level of exchange rate pass-through is low.     

人民币均衡汇率、汇率错位与出口关系的实证分析

本文运用1978—2005年的数据，分别计算了人民币均衡汇率水平和汇率错位程度，并运用两步法和误差修正模型分析了人民币均衡汇率、汇率错位与出口之间的关系。     

EXCHANGE RATE PASS‐THROUGH TO IMPORT PRICES IN SOUTH AFRICA: IS THERE ASYMMETRY?1

This paper examines the magnitude and speed of exchange rate pass‐through (ERPT) to import prices in South Africa. It further explores whether the direction and size of changes in the exchange rate have different pass‐through effects on import prices, i.e. whether the exchange rate pass‐through is symmetric or asymmetric. The findings of the study suggest that ERPT in South Africa is incomplete but relatively high. Furthermore, ERPT is found to be higher in periods of rand depreciation than appreciation, which supports the binding quantity constraint theory. There is also evidence to suggest that pass‐through is slightly higher in periods of small changes than large changes in the exchange rate in harmony with the menu cost theory when the invoices are denominated in the exporters' currency.     

An empirical analysis of China's equilibrium exchange rate: A co-integration approach

This paper estimates time specific values for China's long-run equilibrium exchange rate and develops measures of the direction and extent of misalignment based on a reduced-form real effective exchange rate (REER) model. An appropriately specified long-run equilibrium model is estimated and tested following Johansen and Juselius (1990) procedures, which is then used to construct an estimated time path for long-run equilibrium exchange rate values.Unit root tests indicated that each series can be considered as I(1) and that there was one cointegrating relationship linking the RMB series with its “fundamentals” – openness, money supply, productivity and government spending – with long-run elasticities of (0.41), (0.97), (0.51) and (0.75), respectively. The estimated error-correction model of REER determination showed that during China's latest exchange rate regime (from 2005:Q3) the RMB was undervalued by an average of 6.7 percent, which is modest compared to related studies.Estimation of the associated short-run error correction model shows that the error correction term has a statistically significant value of 0.85, implying that the actual real effective exchange rates would converge relatively quickly (just over one quarter, on average) towards their long-run equilibrium level in the absence of central bank intervention.     

International monetary arrangements in the Asia-Pacific before and after

This paper assesses the characteristics and policy implications of the international monetary arrangements in the Asia-Pacific pre- and post-July 1997. It first examines the literature on speculative attacks on fixed and managed exchange rate regimes. Since these speculative attacks are more likely to be successful when financial markets are well integrated, it then assesses the degree of financial market integration in the region. Furthermore, as the empirical evidence also suggests a possible role for real exchange rate overvaluation, we examine the evidence regarding misalignment. Using a purchasing power parity (PPP) criterion and a criterion based on a Balassa-Samuelson model, we find mixed evidence of exchange rate overvaluation. Given that our ability to determine the equilibrium real exchange rate is so limited, we caution against a return to a fixed or highly managed exchange rate regime. Finally, we assess how monetary policy and exchange rate policy have interacted over the pre- and post-crisis periods, using a monetary model of exchange rates. JEL classification: F31; F33; F34     

Real exchange rates and unit root tests

Real Exchange Rates and Unit Root Tests. — This paper examines monthly OECD exchange rate data (1979–1997) using univariate and panel data unit root tests. Some of these tests support the hypothesis of a unit root. But tests of cointegration reveal the existence of weak purchasing power parity relationships between bilateral nominal exchange rates and relative prices. We suggest that researchers need not conduct unit root tests on real exchange rate data when a modified version of PPP is used; or if there is a long enough time series. Given the definition of real exchange rates, the indicator should be stationary and should have intrinsic mean reverting behaviour.     

中美农产品贸易收支与人民币兑美元汇率关系研究

自人民币汇率改革以来,人民币汇率波动与国际贸易的关系,受到了国内外学者的广泛关注。本文通过协整模型和误差修正模型探讨了中美农产品贸易与人民币兑美元汇率间的关系。研究表明从长期看,人民币兑美元汇率变化与中美农产品贸易存在着均衡关系,但在短期内,中美农产品贸易与人民币汇率变化的均衡关系并不明显。为此,中国应采取切实可行的措施,规避中美农产品贸易的短期风险。     

SHORT‐RUN AND LONG‐RUN DETERMINANTS OF THE REAL EXCHANGE RATE IN MEXICO

This paper explores the real exchange rate behavior in Mexico from 1960 until 2005. Since the empirical analysis reveals that the real exchange rate is not mean reverting, we propose that economic fundamental variables affect its evolution in the long run. Therefore, based on equilibrium exchange rate paradigms, we propose a simple model of real exchange rate determination, which includes the relative GDP per capita, the real interest rates, and the net foreign assets over a long period of time. Our analysis also considers the dynamic adjustment in response to shocks through impulse response functions derived from the multivariate vector autoregressive (VAR) model.     

Asymmetric effects of the exchange rate on domestic corporate goods prices

This paper empirically examines whether there are asymmetric effects of the exchange rate on domestic corporate goods prices when the exchange rate is more volatile. To identify different volatilities in the exchange rate, we employ a threshold regression model. In other words, we define exchange rate volatility as a threshold variable. By using monthly data from Japan, we estimate a threshold parameter and calculate its confidence interval by following Hansen (2000). The results substantiate that the degree of exchange rate pass-through to the aggregated corporate goods price index is higher and more gradually adjusted in a higher exchange rate volatility regime. Furthermore, such asymmetric relationships are clearly found in three disaggregated corporate goods prices: petroleum and coal products, nonferrous metals, and chemicals and related products.     

The Inflationary Effects of Effective Exchange Rate Depreciation in Selected African Countries

This paper investigates the long-run relationship between thenominal effective exchange rate and domestic inflation in selectedAfrican countries. Given that the study period is 1979–97,data availability is very limited. A new panel data cointegratingtechnique proposed by Pedroni is employed which lessens thelikelihood of accepting non-stationarity on account of limitedtest power. We find that effective exchange rate depreciationis inflationary but this is unlikely to outweigh the gains fromincreased price competitiveness. The results also point towardslimited effectiveness in monetary policy controlling inflation.Finally, the Pedroni methodology is expanded through the estimationof panel data error correction models that indicate a fairlysluggish adjustment towards long-run equilibrium.