人民币NDF对境内人民币即期汇率的影响

本文以境外人民币NDF(无本金交割远期)市场和境内人民币即期市场为研究对象,选取2010年8月至2013年11月间1个月、3个月、6个月及1年期人民币NDF汇率和境内即期汇率作为样本数据,通过Granger因果检验分析了两个市场之间的价格引导关系。实证结果表明,境外人民币NDF(无本金交割远期)市场不存在对境内人民币即期市场的价格引导,而境内即期汇率却是人民币NDF汇率变动的先导变量。     

人民币离岸市场与境内市场的信息传递研究——基于NDF汇率和即期汇率的实证分析

本文研究人民币即期汇率与NDF之间的关系和信息流的传递.利用MA(1)-GARCH(1,1)模型描述人民币即期汇率与NDF的变动,用GARCH模型检验人民币即期汇率与NDF之间的均值溢出效应和波动溢出效应.得到的主要结论为,人民币NDF市场对人民币即期汇率市场有均值溢出效应,人民币即期汇率和NDF之间有双向波动溢出效应.这表明信息流由境外市场传导至境内市场,人民币即期汇率市场受到境外市场因素的影响,离岸人民币NDF市场是境内即期市场的先导.     

人民币即期汇率与NDF的关联性：对NDF限制政策的实证研究

检验和揭示境内人民币即期汇率与境外NDF间的互动关系,可为各类市场主体提供有益的市场信息和参考.本文针对2006年10月出台的对境内机构和个人参与境外人民币NDF交易的限制性政策,实证研究了该政策实施后人民币即期汇率与NDF的相互影响.格兰杰因果性检验表明:即期汇率引导12个月期限的NDF;12个月期限的NDF不引导即期汇率.境内现汇市场显现出本土信息优势.在一定程度上说明人民币汇改和限制性措施的成效性,但限制性政策却可能并非长远之计.     

人民币离岸NDF汇率与境内人民币汇率关系的实证

人民币汇改以来,人民币离岸NDF市场的交易日趋活跃,对人民币汇率走势预期的影响也日渐增强.实证结果表明,人民币离岸NDF 市场上存在着不同程度的人民币升值预期,预期升值水平与NDF汇率期限相关;人民币离岸NDF汇率影响着人民币即期汇率,离岸NDF市场对人民币即期市场存在单向波动溢出效应,在信息传递上表现为人民币离岸NDF市场的汇率信息向境内人民币市场传递.     

人民币境外NDF汇率、境内远期汇率与即期汇率的关系的实证研究

2005年7月21日汇率形成机制改革以来,人民币即期汇率波动幅度加大,企业和居民面临的汇率风险加大。在远期市场上,套期保值是规避汇率风险的常用办法。当前经营人民币远期产品的市场主要有两类,一类是境外NDF市场,另一类是境内远期外汇市场,包括银行间远期市场和远期结售汇市场。本文检验了境外NDF市场、境内远期外汇市场和即期外汇市场上人民币汇率的协整关系以及两类远期外汇市场的有效性。对各市场汇率时间序列进行的格兰杰因果检验表明国内远期外汇市场是人民币外汇市场的信息中心。最后,文章对当前的外汇管制政策进行了分析评论。     

中国应开放人民币NDF市场吗?——基于人民币和韩圆的对比研究

本文针对人民币和韩圆分别考察了不完全关闭NDF、关闭NDF、不完全开放NDF和开放NDF背景下SPOT、DF和NDF市场之间的互动关系和信息流动特征,对不同开放背景下货币当局的政策效果和影响进行了实证研究。DCC-GARCH的研究结果表明:开放NDF市场会促进SPOT、DF和NDF三个市场之间的一体化程度,但同时也意味着波动的相关性大大提高,且NDF市场通常为波动来源,同时会在一定程度上降低央行干预的有效性。在DF市场尚不发达的情况下关闭NDF市场,可能会有利于DF市场的发展,减少NDF在汇率定价中的影响力。     

人民币境外衍生市场与境内即期市场间的信息流动关系研究

本文基于Granger因果检验和GARCH模型从线性报酬溢出效应和非线性波动率溢出效应两个角度实证研究了人民币境外衍生市场与境内即期市场间的信息流动关系.研究结果表明:在报酬溢出方面,境外CME期货市场与境内即期市场之间存在双向影响关系,但境外NDF远期市场对境内即期市场仅存在单向的影响关系;在波动率溢出方面,境外CME期货市场和境外NDF远期市场都对境内即期市场存在波动率溢出效应,而境内即期市场对境外CME期货市场存在波动率溢出效应,但对境外NDF远期市场的波动率溢出效应不显著.     

境内外人民币远期汇率的关联性分析

随着我国经济对外开放程度的提高，人民币汇率对世界经济的影响也渐次增大，境外机构和个人亟需利用人民币远期汇率对冲人民币汇率风险。然而由于我国实行外汇管制，境外机构不能进入境内外汇市场，于是新加坡在1996年开设了人民币兑美元的无本金交割远期（non-deliverable forward，NDF）市场。随着该市场的迅速发展，NDF汇率与我国境内人民币兑美元远期汇率的关联越益紧密，值得引起我们的高度关注。     

境外人民币NDF和境内人民币掉期之间关系的实证研究

我国2005年7月21日启动人民币汇率形成机制改革以来,人民币汇率波动性显著放大,各经济主体运用人民币远期产品规避汇率风险的需求增加。本文运用协整检验、Granger因果关系检验、ECM模型和脉冲响应函数,运用交易比价活跃的5个期限的人民币远期产品对境外人民币NDF隐含掉期点数和境内人民币市场掉期点数之间的关系进行了实证分析并对其作用机制进行了讨论。结果表明,在各个期限的远期产品上,境外NDF隐含掉期点数和境内人民币掉期点数之间存在长期正向的协整关系,其中NDF处于主导地位。     

境内外人民币外汇市场的多阶矩风险溢出效应研究

本文测算了人民币汇率的意外波动率、条件偏度和条件峰度等多阶矩风险指标,结合DY溢出指数模型与DCC-GARCH模型研究了境内人民币外汇市场、香港离岸外汇市场和NDF市场之间的风险溢出效应。研究发现：人民币汇率的高阶矩波动率能够更好地捕捉到小概率冲击或极端冲击的影响;在频域视角下,境内外人民币外汇市场间存在显著的静态风险溢出效应,且意外波动率风险溢出效应持续期相对较长,境内市场是风险溢出的源头,往往以香港离岸市场为中介将风险传导至NDF市场;从时域角度看,各阶矩下的风险溢出效应都具有不断增强的时变特征,且对未预期冲击、小概率冲击和极端冲击较为敏感;就风险溢出效应所体现的风险联动性来看,境内外市场的风险联动性在各阶矩维度下也都是显著的。     

Volatility spillover in the foreign exchange market: the Indian experience

We find evidence of significant volatility co-movements and/or spillover from different financial markets to the forex market in India. Among a large number of variables examined, volatility spillovers from domestic stock, government securities, overnight index swap, Ted spread and international crude oil markets to the foreign exchange market are found to be significant. There is evidence of asymmetric reactions in the forex market volatility. Comparisons between pre-crisis and post-crisis volatility indicate that the reform measures and changes in financial markets microstructure during the crisis period had significant impact on volatility spillover. During the post-crisis period, the lagged volatility component that represents persistent or fundamental changes had significant spillover effect on forex volatility, rather than the temporary shocks component. There is evidence of a decline in the asymmetric response in the forex volatility during the post-crisis period in India.     

在岸与离岸人民币汇率动态研究——基于美元因素和套利因素的视角

在全球宏观环境背景下,研究在岸与离岸人民币汇率的联动机制可以为扩大我国金融市场对外开放、推动人民币国际化以及防范化解金融风险提供参考和理论依据。本文借鉴Verdelhan(2018)的研究,通过VECM-BEKK-GARCH模型研究了在岸与离岸人民币汇率间均值溢出效应和波动溢出效应中美元因素及套利因素的作用。结果发现:(1)“8·11”汇改后离岸人民币汇率对在岸人民币汇率的影响在均值溢出和波动溢出方面都显著上升,而在岸人民币汇率对离岸人民币汇率的波动溢出能力也开始出现,两个市场的一体性大幅提高;(2)美元因素和套利因素对在岸人民币汇率的影响越来越强,美元因素的影响依然要强于套利因素,这也基本符合前期研究中美元因素起主导作用的结论;(3)以美元因素和套利因素为代表的全球系统性变异因素会影响离岸市场向在岸市场的冲击传导以及在岸人民币市场向离岸人民币市场的波动传导。     

境内人民币远期与NDF汇率关系

对2006年8月11日至2009年11月30日1月期、3月期、6月期和12月期的远期汇率进行统计和计量分析后发现:金融危机后,境内人民币远期汇率与NDF汇率的总体波动性有所降低,人民币远期汇率弹性有所下降;境内人民币远期市场的定价能力提高主要体现在短期限品种NDF汇率对于境内人民币远期汇率单向引导关系减弱,而二者的相互引导关系增强;长期限品种NDF汇率对于境内人民币远期汇率的引导关系不变。因此后金融危机时期一方面要防范国际资本和政治经济压力对中国汇率的冲击,同时也要择机有序退出临时性汇率安排,稳步推进人民币汇率形成机制改革。     

Is the UAE stock market integrated with the USA stock market? New evidence from asymmetric causality testing

The integration and development of financial markets is an important issue because it can result in economic growth via increasing exchange and more efficient allocation of scarce resources. It is also important for defining and conducting appropriate policies to counteract adverse spill-over effects across markets. The main goal of this paper is to assess the degree of integration or segmentation of the UAE stock market with the USA market by conducting new causality tests developed by Hatemi-J (forthcoming) that separate the effect of positive shocks from the negative ones. The empirical results based on standard symmetric causality tests indicate that the UAE market is segmented from the USA market. However, when the asymmetric causality tests are implemented the results reveal clearly that the UAE market is indeed integrated with the USA market. These results show, in addition, that the degree of integration is stronger when the markets are falling than rising.     

Stock market comovements around the Global Financial Crisis: Evidence from the UK,BRICS and MIST markets

This paper analyses stock market co-movements around recent crises and explores the international portfolio diversification benefits available for UK investors holding a portfolio in the BRICS and MIST emerging markets. The application of conventional and regime-switch cointegration techniques suggests an absence of diversification benefits. Further evidence from application of a multivariate time-varying asymmetric model (i.e. AG-DCC) suggests that conditional correlation among the stock markets exhibits higher dependency when it is driven by negative shocks to the market. The asymmetric causality test provides supporting evidence of the decoupling hypothesis. The results indicate that the Chinese stock market is the most attractive option for the UK investor.     

How do policy and information shocks impact co-movements of China’s T-bond and stock markets?

We investigate the impacts of policy and information shocks on the correlation of China’s T-bond and stock returns, using originally the asymmetric dynamic conditional correlation (DCC) model that allows for the coexistence of opposite-signed asymmetries. The co-movements of China’s capital markets react to large macroeconomic policy shocks as evidenced by structural breaks in the correlation following the drastic 2004 macroeconomic austerity. We show that the T-bond market and the bond–stock correlations bear more of the brunt of the macroeconomic contractions. We also find that the bond–stock correlations respond more strongly to joint negative than joint positive shocks, implying that investors tend to move both the T-bond and stock prices in the same direction when the two asset classes have been hit concurrently by bad news, but tend to shift funds from one asset class to the other when hit concurrently by good news. However, the stock–stock correlation is found to increase for joint positive shocks, indicating that investors tend to herd more for joint bullish than joint bearish stock markets in Shanghai and Shenzhen.     

Price-volume Correlation in the Housing Market: Causality and Co-movements

Housing market cycles are featured by a positive correlation of prices and trading volume, which is conventionally attributed to a causal relationship between prices and volume. This paper analyzes the housing markets in 114 metropolitan statistical areas in the United States from 1990 to 2002, treats both prices and volume as endogenous variables, and studies whether and how exogenous shocks cause co-movements of prices and volume. At quarterly frequency, we find that, first, both home prices and trading volume are affected by conditions in labor markets, the mortgage market, and the stock market, and the effects differ between markets with low and high supply elasticity. Second, home prices Granger cause trading volume, but the effects are asymmetric—decreases in prices reduce trading volume, and increases in prices have no effect. Third, trading volume also Granger causes home prices, but only in markets with inelastic supply. Finally, we find a statistically significant positive price–volume correlation; which, however, is mainly explained by co-movements of prices and volume caused by exogenous shocks, instead of the Granger causality between prices and volume.     

原油价格与经济政策不确定性对大宗商品市场非对称冲击效应研究

利用面板分位回归模型,考量不同市场环境下原油价格与经济政策不确定性对大宗商品市场非对称性冲击效应。结果表明：油价冲击对中国大宗商品收益的影响具有非对称性,正负油价冲击对其均有促进作用,但随着市场环境好转,正油价冲击的作用逐渐增强,负油价冲击则逐渐减弱;政策不确定性对大宗商品收益有促进作用,但在牛市环境下有抑制作用;且危机前后,油价冲击对大宗商品收益的影响存在非对称性效应。     

Firm size and volatility analysis in the Spanish stock market

Using Spanish stock market data, this paper examines volatility spillovers between large and small firms and their impact on expected returns. By using a conditional capital asset pricing model (CAPM) with an asymmetric multivariate GARCH-M covariance structure, it is shown that there exist bidirectional volatility spillovers between both types of companies, especially after bad news. After estimating the model, a positive and significant price of risk is obtained. This result is consistent with the volatility feedback effect, one of the most popular explanations of the asymmetric volatility phenomenon, and explains why risk premiums are much more sensitive to negative return shocks coming from the whole market or other related markets.