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1.
This paper examines the effects of intraday trading volume on return volatility across China's stock index and index futures markets using 5‐min intraday data. The periodic characteristics of intraday data are considered and a FIEGARCH model is employed to allow for long memory properties of intraday volatility. We find that volume has significant positive influences on volatility across the two markets, and that the impact of futures volume on spot volatility is significantly stronger than the impact of spot volume on futures volatility. These findings indicate a stronger information flow from the futures market to the spot market than vice versa, which might result from current access restrictions on investors in China's stock index futures market. 相似文献
2.
曲延英 《中央财经大学学报》2003,(6):42-45
本首先从对信息披露制度的争论提出问题,然后以新兴古典经济学视角研究证券市场信息披露制度。股东与经理之间的分工导致信息不对称,为消除信息不对称、为减少股东与经理之间交易协调失灵的风险,需要证券市场信息披露制度。章最后从减少内生交易费用和限制外生交易费用的角度,指出我国信息披露制度应该完善的地方。 相似文献
3.
International experience points to the critical role of stable property markets in maintaining financial stability. This paper investigates the real and financial linkages between real estate sector and other sectors. The real linkage based on input–output analysis shows that the linkages have strengthened. The financial linkages in terms of credit risk spillovers across sectors are studied by using DAG method and SVAR. We find that that credit risk in the real estate sector has large-scale spillover effects onto other sectors. Consequently, shocks to the property market could have much larger impact on the Chinese economy than suggested by headline figures. 相似文献
4.
本文采用EGARCH模型检验了不同市场中股价波动的非对称性,并通过EXCEL软件做出了信息冲击曲线,总结归纳出四条重要结论。这四条结论对A/H股的溢价现象、牛市中A/H股的溢价扩大和熊市中A/H股的溢价缩小现象进行了相对有效的解释。在此基础上,本文考察了A股和H股之间的溢出效应,分析了A/H股溢价指数与A股的走势关系,并用所得卖证结论对A+H股现状做出解释。 相似文献
5.
本文采用了VAR模型以及Granger因果检验的方法来考察量价之间的动态相关关系.我们选定1996年12月16日至2008年12月31日作为样本研究区间,实证发现滞后期的交易量和收益对当前期交易量与收益的解释力度存在下降趋势;同时,交易量同收益之间由收益对交易量的单向引导发展为双方互为Granger原因.本文得到的交易模式的动态演变轨迹反映了我国投资者式逐步趋于理性成熟. 相似文献
6.
本文运用DAG方法、VAR模型和马尔科夫转换模型考察了货币政策对股市价格水平的影响,结果表明中短期内货币政策对股票市场价格水平存在影响显著,并表现出较强的非对称效应。股市低迷期的紧缩性货币政策会进一步降低股市收益率,减小股市从熊市转入牛市的概率;相反,股市繁荣期的紧缩性货币政策将增加股市从牛市转入熊市的概率。 相似文献
7.
本文使用滑窗VAR模型构建多维度视角下金融压力内外部溢出效应的测度体系,研究我国主要金融市场与全球、美国、发达国家和新兴市场国家四维度下金融市场之间的动态传导效应。实证结果表明:国际市场与我国金融市场之间的压力传导具有时变性特征。前期主要集中在全球金融市场,中期主要来源于美国金融市场,后期则是新兴国家市场占据主导地位。此外,随着我国金融市场体系不断完善,我国金融压力集中于股票市场和债券市场进行内外部传导,外汇市场作用相对较小,而在汇改期间外汇市场作用相对显著。本研究揭示了我国与国际金融市场间压力溢出效应内外部传导渠道及其强弱特征,有利于提高系统性金融风险的防控能力,为金融监管相关政策提供数据支撑。 相似文献
8.
In this paper, we argue that when individual investors can obtain information from public resources such as Google search, the degree of investor attention to a particular underlying company is positively linked with herding behavior for retail investors. Empirical results confirm that Google Search Volume Index can be a proxy for the information demand of uninformed individual investors. Empirical evidence also shows that reaching the price limit generates an attention-grabbing effect. Further, in general, small cap firms generate more intensive individual investor herding. In addition, we explore the asymmetric impact of abnormal search volume index on individual investor herding behavior for bull and bear markets, and confirm that the individual investor buy herding phenomenon is stronger in bull markets, especially for small capitalization firms. In bear markets, with greater price deterioration for large cap firms, we detect herding behavior on the sell side. 相似文献
9.
This paper explores the return dynamics between the world's major computer OBM firms and their corresponding OEM/ODM companies in Taiwan. We adopt a systematic multiple hypotheses testing method, the VAR test methodology, to test the dynamic relations. The result shows that there exist strong dynamic relations between the stock returns of the own-brand firms and their corresponding OEM/ODM firms. Specifically, returns of the OBM firms tend to lead those of their corresponding OEM/ODM companies. And the extent of this return lead-lag pattern increases with the closeness of the relationship between those OBM firms and their OEM/ODM partners. This implies that the OBM-OEM/ODM partnership is an important factor in the information set of the investors' trading strategies. In addition to the return dynamics, we also examine the volatility association and spillover effect between returns of these two types of firms. The result indicates a significant spillover effect of the current volatility of the OBM firms on future volatility of their corresponding OEM/ODM firms. Our results imply that the information transmission process between performance of the OBM firms and earnings power of the OEM/ODM companies is not only channeled through the first moment return lead-lag pattern, but also conducted by the second moment volatility spillover effect. 相似文献
10.
基于信息溢出的视角,本文构建了2008-2015年我国上市金融机构之间的关联网络,通过网络分析法解构了金融网络的总体关联性以及部门内和部门间的关联特征,并采用金融机构微观层面的数据实证分析了网络关联的影响因素。研究发现我国金融机构的关联网络具有“小世界现象”和“无标度特性”等复杂网络性质,同时,2012年以来我国金融机构的总体关联性呈现明显的上升趋势,且2014年的关联程度甚至超过了金融危机期间,反映出近年来我国金融机构的系统性风险在不断累积。研究还发现金融机构影子业务规模的快速扩张是我国金融机构关联水平上升的重要因素。 相似文献
11.
采用线性与非线性Granger因果检验、协整检验和VECM模型,研究了沪深300股指期货和现货市场的线性与非线性信息溢出,并检验了期货市场的价格发现功能发挥情况。研究结果显示:线性信息溢出方面,沪深300股指期货市场对现货市场只有线性均值信息溢出,现货市场对期货市场只存在线性方差信息溢出;非线性信息溢出方面,两个市场之间不存在非线性均值信息溢出,不过二者之间存在显著的非线性方差信息溢出;沪深300股指期、现货市场之间存在着长期均衡的关系,不过不同于成熟市场中期货市场在价格发现方面居于主导地位的结论,我国股指现货市场在价格发现方面占主导地位,而期货市场处于从属地位。 相似文献
12.
本文通过构建包含金融部门和“双支柱”调控政策的DSGE模型,系统考察了货币政策和宏观审慎政策的组合在不同经济金融冲击下的宏观经济和金融稳定效应。相关分析得出了三个基本结论:一是纳入宏观审慎政策的“双支柱”调控框架确实比单一使用货币政策具有相对更好的经济和金融稳定效应;二是“双支柱”调控框架在应对金融冲击时的稳定效应表现得更加明显,这说明宏观审慎政策确实是通过金融稳定渠道发挥作用的,从而与货币政策侧重实体经济(产出和通胀)的稳定效应形成了有效互补;三是不论是在价格型的货币政策工具下,还是在数量型的货币政策工具下,“双支柱”调控框架都较单一使用货币政策具有更好的经济金融稳定效应,这说明“双支柱”调控框架的有效性不依赖于货币政策工具的改变而改变,在具体的政策工具组合方面具有较为普遍的适用性。 相似文献
13.
境内外人民币远期汇率信息传导关系的演变:一个实证分析 总被引:1,自引:0,他引:1
本文运用向量自回归模型(VAR),运用格兰杰因果关系检验、脉冲响应分析和方差分解方法,分4个时间段检验2006年9月至2008年6月境内外远期市场之间的信息传导关系的特征及其变化。研究结论是:人民币汇率形成机制有了比较明显的改善,境内人民币远期市场自2007年下半年起已经能够对境外市场的价格产生引导作用;境外影响境内的总体态势没有改变,人民币汇率形成机制改革依然任重道远;在境内金融市场尚不发达的情况下,适当的外汇管制可以为金融市场的完善争取时间,但外汇管制的长期效力减弱,应正确认识外汇管制的作用。 相似文献
14.
Zhang Xiaoling Chen Huamin 《国际金融研究》2006,(10)
在以市场风险披露为基础的衍生交易监管政策下,SEC的“305规则”体制由定量、定性信息披露要求与前瞻性信息披露的安全港规则有机构成。我国应当借鉴先进的风险监管规则,构建创新的衍生工具市场风险披露法律框架,并解决好创新规则实施过程中的成本-收益权衡问题、收益波动性问题。 相似文献
15.
This paper examines the causal and dynamic relationships among stock returns, return volatility and trading volume for five
emerging markets in South-East Asia—Indonesia, Malaysia, Philippines, Singapore and Thailand. We find strong evidence of asymmetry
in the relationship between the stock returns and trading volume; returns are important in predicting their future dynamics
as well as those of the trading volume, but trading volume has a very limited impact on the future dynamics of stock returns.
However, the trading volume of some markets seems to contain information that is useful in predicting future dynamics of return
volatility. 相似文献
16.
17.
基于VAR的我国产业间价格传导实证分析 总被引:5,自引:1,他引:5
价格传导机制是价格机制作用于微观经济主体、发挥资源配置功能的重要载体。我国顺向价格传导机制在工业品出厂价格指数向居民消费物价指数传导环节出现阻滞,而逆向价格传导机制则比较顺畅。这表明我国当前基本不存在成本推动型通货膨胀的价格传导条件,而需求拉上型通货膨胀的价格传导机制却比较顺畅。 相似文献
18.
本文采用了VAR模型以及Granger因果检验的方法来考察量价之间的动态相关关系。我们选定1996年12月16日至2008年12月31日作为样本研究区间,实证发现滞后期的交易量和收益对当前期交易量与收益的解释力度存在下降趋势;同时,交易量同收益之间由收益对交易量的单向引导发展为双方互为Granger原因。本文得到的交易模式的动态演变轨迹反映了我国投资者式逐步趋于理性成熟。 相似文献
19.
This paper discusses the possibility of recovering normality of asset returns through a stochastic time change, where the appropriate economic time is determined through a simple parametric function of the cumulative number of trades and/or the cumulative volume. The existing literature argues that the re-centred cumulative number of trades could be used as the appropriate stochastic clock of the market under which asset returns are virtually Gaussian. Using tick-data for FTSE-100 futures, we show that normality is not always recovered by conditioning on the re-centred number of trades. However, it can be shown that simply extending the approach to a nonlinear function can provide a better stochastic clock of the market. 相似文献
20.
The aim of this study is to investigate the volatility spillover connectedness between NFTs attention and financial markets. This paper firstly proposes a new direct proxy for the public’s attention in the NFT market: the non-fungible tokens attention index (NFTsAI), based on 590m news stories from the LexisNexis News & Business database and applies the historical decomposition to assess the historical variations of the NFTsAI. Then the empirical analysis is performed via a TVP-VAR volatility spillover connectedness model. The empirical results show that NFTsAI indicates NFT markets are dominated by cryptocurrency, DeFi, equity, bond, commodity, F.X. and gold markets. And NFT markets are volatility spillover receivers. In addition, NFT assets could impede financial contagion and have significant diversification benefits. Employing a panel pooled OLS regression model as a supplementary analysis and a GARCH-MIDAS model as a robustness test. This study reveals that NFTsAI has sufficient power to explain the return of NFT assets from a fixed effect perspective, and NFTsAI contains useful forecasting information for both short and long-term volatility of NFT markets, separately. The new NFTsAI and the empirical findings contain useful insights for risk-averse investors, portfolio managers, institutional investors, academics and financial policy regulators. 相似文献