人民币升值对我国制造业的就业影响

国际金融危机背景下人民币不断升值以来,我国的就业形势一直比较严峻。人民币升值对制造业就业的影响,主要体现在总需求效应、资本替代劳动效应、国际投资效应以及消费效应等方面。本文运用协整关系检验、格兰杰因果关系检验和误差修正模型等研究方法对人民币升值影响制造业就业量进行了实证分析,结果表明,人民币汇率与制造业就业量之间存在长期均衡关系,人民币在合理的范围内适度升值有利于该就业量的提高。     

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。     

人民币升值对两岸经贸关系影响的实证研究

本文利用1999年7月至2008年4月的月度数据,运用协整检验以及基于VECM的Granger因果检验等计量方法,封人民币升值封两岸经贸关系的影响进行探讨。结果表明,人民币汇率与两岸经贸关系的三个核心指标都存在长期稳定的均衡关系。从长期来看,两岸经贸关系的三个核心指标都是人民币名义汇率的单向Granger原因;而从短期来看,不存在Granger因果关系。至于人民币升值封大陆封台出口、大陆自台进口以及台商对大陆投资的影响,无论是长期还是短期,都不明显。简言之,人民币升值封两岸经贸发展的负面影响不明显,而且从长远来看,两岸经贸关系的发展将有利于人民币汇率的稳定。     

标准化对我国出口贸易的影响

在标准主导国际竞争的时代,标准化已成为影响国际贸易的重要变量。本文选取1991-2010年的样本数据,在利用单位根检验对变量平稳性考察的基础上,采用协整检验方法对我国国家标准增量、外商直接投资额、人民币汇率和我国出口贸易额等变量的长期均衡进行了分析并作了误差修正和Granger因果检验。结果表明,外商直接投资额和人民币汇率与我国出口贸易存在正相关,而我国国家标准增量在短期内对我国出口贸易具有抑制作用,在长期内则对我国出口贸易具有促进作用。     

Dynamic linkages between Asian stock prices and exchange rates: new evidence from causality in quantiles

This article applies the Granger causality test in quantiles to investigate causal relations between stock returns and exchange rate changes for nine Asian markets over the period 1 January 1997 to 16 August 2010. Our empirical results indicate that the quantile causal relations vary across different quantiles and different periods. Although the causal effects of exchange rate changes on stock returns (or stock returns on exchange rate changes) are heterogeneous across quantiles, the overall evidence suggests that most stock and foreign exchange markets are negatively correlated. The result shows that there are more bidirectional causal relations in accordance with this method than the conventional least square (LS) estimation. The symmetry of these quantile causal effects (the ‘averaging effect’) helps to explain why conventional LS method usually obtains an insignificant result of causality.     

人民币汇率与外商直接投资关系研究——基于上海市的数据

运用Johansen协整检验、Granger因果检验、脉冲响应分析等实证方法研究上海市外商直接投资与人民币实际有效汇率及其波动之间的相关性,研究表明:上海市外商直接投资(FDI)与实际有效汇率(REER)、地区国内生产总值(GDP)和对外依存度(OPEN)显著正相关,与汇率波动(VOL)和平均工资(WAGE)显著负相关;短期内人民币实际有效汇率及其波动对上海市外商直接投资存在影响,且汇率的波动比其实际值的大小更能影响外商直接投资;实际有效汇率及其波动的冲击在零期对外商直接投资均没有影响,响应值在第四期达到最大,实际有效汇率对于外商直接投资的影响主要体现在投资时机的选择上。     

The export-output growth nexus in Japan: a bootstrap rolling window approach

The purpose of this article is to examine the export–output nexus in Japan by taking into account the time variation in the causal link with bootstrap Granger non-causality test and rolling estimation. The data used cover the seasonally adjusted real export and real Gross Domestic Product (GDP) for the 1957:1–2009:1 period. Standard Granger causality tests indicate no causality between export and real GDP series. On the contrary, full sample-modified Granger causality tests based on bootstrap, which are applicable irrespective of integration–cointegration properties of the data, indicate a bi-directional causal link between exports and real GDP. Accordingly, export growth should be an important factor behind Japan’s high-economic growth in the last three decades. Using parameter stability tests, we show that these results are not uniform for different sample periods and results vary due to structural changes. Using bootstrap rolling window estimation, we find that there is a positive bi-directional predictive power from the mid 1970s to the late-1980s between the series, while from the late 1990s to 2009 there is a positive predictive power only from export growth to output growth.     

Are imports and remittances cointegrated for the Central and Eastern European countries?

In this article, we investigate the existence of long-run common trends between imports and remittances in 11 Central and Eastern European countries which are part of the European Union. Using the Engle–Granger two-step procedure, we determine that for all countries in our sample there are no long-run common trends (no cointegration) between imports and remittances. However, the results are mixed when running a Granger causality test. For nine countries, we can establish either a bidirectional or unidirectional Granger causality, indicating that past values of one variable have predictive content on the other variable. In two countries, there is no Granger causality between imports and remittances.     

碳密度与投资率的因果关系——对中国1980～2009年数据的实证研究

为应对国际金融危机的冲击,国务院4万亿元巨额投资计划出台,碳密度的反弹也随之见诸报端。在这样的背景下,文章运用格兰杰因果检验对我国1980～2009年投资率和碳密度的数据进行分析。检验结果表明,投资率和碳密度之间存在单向因果关系,投资率是碳密度的格兰杰原因。最后从我国的投资现状出发,提出展望与建议。     

THE CAUSALITY BETWEEN STOCK RETURNS AND EXCHANGE RATES: REVISITED

There has been a renewed interest in the determination of causality between stock markets and exchange rates. In nearly all these studies Granger causality tests has been extensively used. In this paper, we employ the standard Granger causality methodology to a research setting similar to that of Granger et al. (2000). We consider the causality between the two markets in nine east Asian economies. We find that the direction of causality tends to demonstrate a hit-and-run behaviour and switches according to the length of period chosen. This implies that great caution should be taken when interpreting Granger causality results.     

Exchange rate volatility and international trade: International evidence from the MINT countries

This paper examines the effect of exchange rate volatility on international trade volumes for Mexico, Indonesia, Nigeria, and Turkey. We use volatility predicted from GARCH models for both nominal and real effective exchange rate data. To detect the long-term relationship we use the autoregressive distributed lag (ARDL) bound testing approach, while for the short-term effects, Granger causality models are employed. The results show that, in the long term, there is no linkage between exchange rate volatility and international trade activities except for Turkey, and even in this case, the magnitude of the effect of volatility is quite small. In the short term, however, a significant causal relationship from volatility to import/export demand is detected for Indonesia and Mexico. In the case of Nigeria, unidirectional causality from export demand to volatility is found, while for Turkey, no causality between volatility and import/export demand is detected.     

中国对外直接投资对进出口贸易的影响分析

笔者在分析对外直接投资对进出口贸易影响机制的基础上,使用1993年～2009年中国对105个国家(地区)直接投资和进出口贸易的面板数据,应用动态VAR模型和面板格兰杰因果检验方法对我国的情况进行实证研究。结果表明:我国对外直接投资与出口及进口之间均存在双向格兰杰因果关系,对外直接投资是贸易创造型的,但这种创造效应还较为有限。因此,应积极发展对外直接投资,并发挥其与贸易的良性互动关系。     

Asymmetric causality using frequency domain and time-frequency domain (wavelet) approaches

Previous research that used asymmetric Granger causality tests relied upon data from the same time domain. In this paper we extend those tests theoretically to the frequency domain. We then apply these new tests to analyze causal link between nominal exchange rate and inflation in G6 and BRICS countries. For sensitivity analysis, we also apply time-frequency domain (wavelet) method in the context of asymmetric causality. Empirical results reveal that inflation causes the exchange rate in most of the countries in our sample. Our findings imply that anti-inflationary policies in these countries could stabilize the exchange rates and increase international confidence in attracting foreign investment which is important for sustained economic growth.     

科技金融与中小高新技术企业发展的实证分析

科技和金融是现代经济发展的重要构成要素。分别选取政策性科技金融和金融机构科技贷款表示科技金融指标,构建生产函数为基础检验模型,并以1999--2011年大连相关数据对二者的关系检验。结果表明,中小高新技术企业的发展约13％可以归因于政策性科技金融,约56％归于高层次科技人员的投入,但是金融机构科技贷款的波动不利于中小高新技术企业的发展。在因果关系上,只存在金融机构科技贷款与中小型高科技企业发展的单方向Granger因果关系。     

The puzzle on the causality of the productivity and employment growth: evidence from firm-level data

This article analyses the causality between the firm’s employment and productivity growth based on the population of manufacturing firms registered in Slovenia in the 1994–2003 period. By using the system GMM estimator, we show that the employment–productivity growth trade-off does not exist. Moreover, we find significant complementarities between employment and productivity growth, mostly driven by SMEs and firms from high-tech industries. Accordingly, we argue that the job-creation policy and productivity-promoting policy are complementary rather than trade-offs and that policymakers should focus on the optimal policy mix that provides the highest aggregate effect with regard to all growth aspects. Further, significant differences among the factors of employment and productivity growth suggest that job-creation policy measures are most successful when targeted at younger export-oriented firms with high total factor productivity levels and capital-intensive production. Meanwhile, the outcome of policy measures aimed at promoting productivity increases with a firm’s capital intensity and size up to the threshold employment level and with the intensity of market competition.     

Black and official exchange rates in Morocco: an analysis of their long-run behaviour and short-run dynamics (1974–1992)

Using Vector Error-Correction (VEC) model estimation on monthly data from Morocco for the period January 1974 to December 1992, this article tests the hypothesis that there is a long-run stable relationship between the official and the black-market exchange rates for US dollars. We also examine the short-run dynamics in the relationship between the two markets. The econometric results indicate that the two exchange rates are cointegrated. Furthermore, we reject weak exogeneity in the case of the official exchange rate, but fail to reject it in the case of the black-market rate. Granger causality tests show that the black-market rate causes the official exchange rate. The results seem to support the efficiency hypothesis, suggesting that participants in the black-market are able to anticipate changes in the official exchange rate. The findings also suggest that Morocco's decision (in January 1993) to introduce only current account convertibility and keep controls on capital accounts was wise.     

我国汇率与存款利率的关系研究：2000.1-2007.8

本文通过对2000年1月到2007年8月期间的人民币汇率与利率的关系进行了格兰杰因果检验,并采用单位根检验,建立VAR模型,通过脉冲响应函数和方差分解分析了二者的关系。结果表明,汇率变动影响着居民储蓄存款利率的变化较为显著,而居民储蓄存款利率影响汇率变动的力度较弱。我国存在着阻碍汇率利率联动的制度、经济等因素。     

The Causality Between R&D And Investment

The aim of this paper is to investigate the relationship between R&D expenditure and investment in machinery and equipment in order to test for causality. New growth theory emphasises the role of R&D in creating blueprints needed to produce new capital goods implicitly assuming causality running from R&D to investment. Other recent studies using firm level data have investigated the relationship between innovative activity and investment in fixed capital. In this paper we use aggregate data from the US economy on R&D expenditure in the industrial sector and aggregate investment in machinery and equipment. Standard Granger causality tests, together with the Hsiao version, are then performed, showing that causality runs from R&D to investment. In addition we perform a cointegration analysis allowing a test of possible long-run feedbacks. This dynamic representation shows that any feedback between investment and R&D is only significant in the long run.     

Oil price and exchange rates: A wavelet based analysis for India

In this paper, we explore linear and nonlinear Granger causalities between oil price and the real effective exchange rate of the Indian currency, known as ‘rupee’. First, we apply the standard time domain approach, but fail to find any causal relationship. So, we decompose the two series at various scales of resolution using the wavelet methodology in an effort to revisit the relationships among the decompose series on a scale by scale basis. We also use a battery of non-linear causality tests in the time and the frequency domain. We uncover linear and nonlinear causal relationships between the oil price and the real effective exchange rate of Indian rupee at higher time scales (lower frequency). Although we do not find causal relationship at the lower time scales, there is evidence of causality at higher time scales only.     

Invoice currency choice,nonlinearities and exchange rate pass-through

ABSTRACT

Estimating time-varying thresholds as a proxy for exporter’s predicted exchange rates, this study proposes a new approach to analyse possible asymmetric behaviour of exchange rate pass-through (ERPT) or pricing-to-market (PTM) in Japanese exports between yen appreciation and depreciation periods. Constructing the industry-specific nominal effective exchange rate on a contract (invoice) currency basis, we perform the multivariate threshold near-vector autoregressive (near-MTVAR) estimation and reveal a strong tendency of symmetric ERPT in the short-run, between yen appreciation and depreciation periods. From the 2000s, however, Japanese machinery exporters increased the degree of PTM even in the long-run, while other industries raised the degree of long-run ERPT, reflecting the difference of product differentiation across industries. This evidence has significant implications for the recent unresponsiveness of the Japanese trade balance to the large depreciation of the yen.