汇率制度改革后中国地产业与汇市的关系——人民币名义汇率与股市地产指数的实证研究

本文利用协整检验、Granger 因果检验、脉冲响应等计量方法,基于股市与汇市的数据,研究了2005年7月人民币汇率制度改革后地产指数与人民币汇率之间的关系.实证结果表明,人民币汇率与地产指数存在着长期稳定的协整关系,汇率波动是地产指数的 Granger 原因,汇率对地产指数的长短期走势均有显著的影响,人民币升值是地产板块跑赢大盘的重要原因之一.     

汇率与股价关联的实证研究——基于汇改后中国大陆、台湾、香港的数据

通过运用协整检验和格兰杰因果检验对汇率制度改革后中国大陆、台湾、香港的股市与汇市关系的实证结果表明,中国大陆汇市与股市存在长期稳定的协整关系,短期相互影响明显;台湾汇市与股市只存在短期的相互效应;香港数据表明两者不存在因果关系,但方差分解显示股市变动对汇率波动有一定的冲击效应.     

汇率与股价的溢出效应及长期联动性——基于汇改后中国市场的实证研究

随着中国资本市场改革的深化,市场间的互动关系逐步回归市场化关联。本文运用协整检验、Granger因果检验、多元GARCH模型研究了汇率与股价的互动关系。研究结果表明:在长期联动性方面,汇率与股价存在稳定的长期均衡关系;在价格溢出方面,只存在汇率到股价的单向引导关系;波动溢出方面,汇市的波动冲击会影响股市,而股市的波动对汇市无明显影响。进一步的研究中,本文估算了汇率波动对股市开盘价及收盘价的影响大小。     

金融危机背景下中国股市和汇市关联效应的实证

运用协整检验、Granger因果检验、向量误差修正模型、方差分解等对金融危机发生前和金融危机发生后中国汇市和股市的关联效应进行实证研究，结果表明无论从短期还是从长期看，金融危机发生前汇率是股价的单向Granger原因，汇率对股价波动的影响较大，股价对汇率的波动影响很小。而在金融危机发生后，汇率和股价存在着双向的因果关系，汇率对股价波动的影响以及股价对汇率波动的影响都较大。金融危机发生后汇市和股市的关联效应明显增强。     

汇率制度改革后人民币有效汇率测算及对国际贸易、外汇储备的影响分析

本文以汇率制度改革日为基期,通过选取样本和构造权重,对人民币实际有效汇率进行新的测算,并与国际清算银行(BIS)公布的数据进行了比对;通过对结果数据和相关变量进行Johansen协整检验、Granger因果检验和相关系数的计算等,认为人民币实际有效汇率与贸易顺差之间具有长期的协整关系,实际有效汇率贬值是导致中国贸易顺差加大的原因之一;但仅凭借人民币升值并不能改变我国贸易双顺差的局面,贸易结构的变化甚至会对人民币汇率构成一定的先导作用;实证分析还显示汇率弹性的增大会使我国外汇储备受汇率牵制的程度有所缓解。     

人民币汇率市场化的股市效应研究

汇率作为影响国民经济的重要指标,不仅影响宏观经济的运行,还会作用于资本市场,对上市公司的股票价值、收益率等产生影响。本文从实证方面对汇率和股市的关系进行了分析,对汇率市场化进程下股价指数和汇率两个指标序列进行单位根检验、协整检验以及格兰杰因果检验,以发现我国股市与汇市之间的内在联系。并分行业进行研究,具体分析二者产生联系的原因。     

次贷危机背景下汇市和股市的关系研究

本文通过单位根检验、协整检验、格兰杰因果检验和方差分解等方法对次贷危机爆发前后的汇市和股市关系进行了实证研究。分析结果显示,危机爆发前汇率和股价之间具有协整关系,但是这种均衡关系由于危机的冲击而遭到破坏。从相互联系来看,汇率和股价的因果关系在危机前后都存在。而且,就互相影响的程度而言,危机爆发前汇率和股价之间的波动基本上都来自自身的影响,而在危机爆发后两者受到彼此波动的影响更为显著。基于实证研究结论,文章最后提出了推动金融市场体制改革和汇率市场化进程,加强证券市场规范化建设等政策建议。     

人民币汇率与我国外汇储备关系的实证分析

近年来,我国大量的外汇储备以及人民币不断升值问题成为国内乃至国际经济学界讨论的热点,因此,分析两者的关系具有十分重要的理论与现实意义。本文采用我国1994-2010年数据,运用数量经济方法,在单整和协整检验的基础上,利用Granger因果检验对我国外汇储备与汇率水平的内在联系进行实证分析。结果表明,人民币汇率水平与我国外汇储备不仅存在负相关关系,且存在Granger意义上的因果关系,即人民币持续升值从某种程度上导致了我国外汇储备的增加。     

次贷危机背景下汇市和股市的关系研究

本文通过单位根检验、协整检验、格兰杰因果检验和方差分解等方法对次贷危机爆发前后的汇市和股市关系进行了实证研究.分析结果显示,危机爆发前汇率和股价之间具有协整关系,但是这种均衡关系由于危机的冲击而遭到破坏.从相互联系来看,汇率和股价的因果关系在危机前后都存在.而且,就互相影响的程度而言,危机爆发前汇率和股价之间的波动基本上都来自自身的影响,而在危机爆发后两者受到彼此波动的影响更为显著.基于实证研究结论,文章最后提出了推动金融市场体制改革和汇率市场化进程,加强证券市场规范化建设等政策建议.     

人民币汇率与我国对外贸易差额关系的实证分析

采用我国1994—2011年的年度数据,运用数量经济方法,在单整和协整检验的基础上,利用Granger因果检验对人民币汇率与我国对外贸易差额的内在联系进行实证分析,结果表明,人民币汇率与我国对外贸易差额不仅存在负相关关系,而且存在Granger意义上的单向因果关系,即人民币持续升值不仅不会使我国对外贸易差额下降,反而是导致贸易顺差不断上升的重要原因.     

The Determinants of Stock Prices: New Evidence from the Indian Banking Sector

We examine the determinants of stock prices for major Indian banks using panel data modeling techniques. Our work is novel because, for the first time in the literature on Indian banking, we use a panel Granger causality test that reveals the direction and sign of causality. We find evidence of panel cointegration among stock prices, economic activity, interest rates, and exchange rates for thirteen banks. Our results suggest that while economic activity and currency depreciation contribute to a rise in share prices, an increase in the interest rate reduces bank share prices. Moreover, only economic activity Granger-causes stock prices in the long run.     

我国股市与汇市之间关系的再检验——基于滚动时间窗口技术和阈值误差修正模型的证据

本文采用滚动时间窗口的技术,基于协整检验和Granger因果检验的方法,检验我国股票市场和人民币兑美元汇率之间的联动关系。实证结果表明,股价与汇率之间长期均衡关系是随时间变化的。2008年之前,股价与汇率之间总体上不存在长期均衡关系,而且仅存在汇率到股价的单向引导关系。2008年之后,二者之间总体上存在显著的长期均衡关系,而且股价与汇率互为对方变动的Granger原因。运用阈值误差修正模型,我们发现股价与汇率之间的短期均衡存在显著的非对称效应。汇率对股价的短期影响要远远大于股价对汇率的影响。     

Interdependence and dynamic linkages between the emerging stock markets of South Asia

The present article examines the dynamic linkages between the stock markets of Bangladesh, India, Pakistan and Sri Lanka using a temporal Granger causality approach by binding the relationship among the stock price indices within a multivariate cointegration framework. We also examine the impulse response functions. Our main finding is that in the long run, stock prices in Bangladesh, India and Sri Lanka Granger‐cause stock prices in Pakistan. In the short run there is unidirectional Granger causality running from stock prices in Pakistan to India, stock prices in Sri Lanka to India and from stock prices in Pakistan to Sri Lanka. Bangladesh is the most exogenous of the four markets, reflecting its small size and modest market capitalization.     

中国的股票价格波动及货币政策反应

本文在阐述中国的股票价格波动情况及成因的基础上，分析中国股票价格的信息功能，并对中国的股票价格与各层次货币供应量进行协整和Granger因果检验。结果表明，从总体上看，中国的股票价格在1995年之后，具备一定的信息功能；股票价格与各层次货币供应量之间存在协整、因果关系。由此，货币当局应对股票价格波动做出反应。文章以前瞻性利率规则为基础，运用IS—PC—AP模型，采用GMM法估计出中国包含股票价格因素的货币政策反应函数。     

Nonlinearity in the stock price–dividend relation

We provide empirical evidence of nonlinearities in the present value (PV) model of stock prices. We test for nonlinearity both in the contemporaneous and in the dynamic stock price–dividend relation for the UK, the US, Japan, and Germany. We employed three nonlinear nonparametric techniques, namely nonlinear cointegration, locally-weighted regression, and nonlinear Granger causality tests. Whilst there is no evidence of linear cointegration and Granger causality for any country, there is significant evidence of nonlinear cointegration and nonlinear Granger causality for all four countries. Furthermore, out-of-sample forecasts obtained from the locally-weighted regression are more accurate than out-of-sample forecasts obtained from the linear model for the UK, the US, and Japan. These results are robust to sub-period analysis. The results are in line with empirical evidence that expected stock returns are time-varying.     

Threshold cointegration,nonlinearity, and frequency domain causality relationship between stock price and Turkish Lira

Modelling complex asymmetric effects and non-linear relationships between exchange rate and stock prices has challenged classical econometric methods. This study contributes to the relative literature in the following distinct ways. First, we follow a variety of econometric approaches in order to characterize the complex dynamic co-movements between Turkish stock market and exchange rate from January 2003 to December 2018. Secondly, we show that the evidence for asymmetric threshold cointegration in Turkey’s financial market can be hidden by following linear time series methodologies. Thirdly, it is also worth noting that the real effective exchange rate, USD-Turkish lira exchange rates, money supply and interest rates have large predictive power for stock price fluctuations at various frequencies. Building on these insights, we claim that asymmetry (nonlinearity) is particularly important in Turkey’s financial market because it shows the need for a new pattern of policy measures to prevent financial market crisis risk in Turkey.     

投机基金持仓头寸与国际油价动荡:1994～2009

总规模超过3万亿美元的石油投机基金的偏爱做多行为直接导致了国际石油价格在2002至2009年间急剧动荡。对代表投机基金的非商业持仓头寸与国际油价之间的协整关系及格兰杰因果检验结果显示,石油投机基金的天量投机行为是国际油价动荡的主要原因。因此,要实现石油价格稳定,在改变美元为主导的国际货币体系的同时,还要测算石油投资基金的最优投机度,一旦投机行为触及最优投机度,交易系统应启动熔断制度,限制投机行为。     

Do exchange rate changes have symmetric or asymmetric effects on stock prices?

Several macro variables have been identified as determinants of stock prices and exchange rate is among them. Exchange rate changes can affect different firms differently depending on whether they are export oriented or they use heavily imported inputs. Therefore, the overall effects of exchange rate changes on an aggregate stock price index could be in either direction. Previous research assumed that exchange rate changes have symmetric effects on stock prices. In this paper after introducing nonlinearity into adjustment process and after using Nonlinear ARDL approach to cointegration and error-correction modeling combined with monthly data from Brazil, Canada, Chile, Indonesia, Japan, Korea, Malaysia, Mexico, and the U.K., we show that exchange rate changes have asymmetric effects on stock prices, though the effects are mostly short-run.