The more contagion effect on emerging markets: The evidence of DCC-GARCH model

The paper aims to test the existence of financial contagion between foreign exchange markets of several emerging and developed countries during the U.S. subprime crisis. As a result of DCC-GARCH analysis, we find the evidence of contagion during U.S. subprime crisis for most of the developed and emerging countries. Another finding is that emerging markets seem to be the most influenced by the contagion effects during U.S. subprime crisis. Since financial contagion is important for monetary policy, risk measurement, asset pricing and portfolio allocation, the findings of paper may be interest of policy makers, investors and portfolio managers.     

Financial market spillovers in transition economies

This paper examines financial market comovements across European transition economies and compares their experience to that of other regions. Correlations in monthly indices of exchange market pressures can partly be explained by direct trade linkages, but not by measures of other fundamentals. Higher-frequency data during three crisis periods reveals the presence of structural breaks in the relationship between exchange-, but not stock markets. While the reaction of markets during the Asian and Czech crises is muted, the pattern of high-frequency spillovers during the Russian crisis looks very similar to that observed in other regions during turbulent times. With greater financial market integration, the financial markets of the more advanced transition economies can be expected to behave more and more like their Asian and Latin American counterparts.     

中国与国际大豆期货市场波动溢出效应分析

文章采用多元GARCH(MGARCH)模型,研究中国、美国和日本大豆期货市场的相关性和波动溢出效应。结果表明:在样本研究期间,大连、芝加哥和东京大豆期货交易市场之间存在正相关,大连大豆期货市场与芝加哥大豆期货的相关性要小于东京谷物交易所大豆期货与芝加哥大豆期货的相关性;大连、芝加哥和东京大豆期货交易所存在双向的波动溢出效应;在三个市场中,大连大豆期货的新息冲击和自身波动溢出值最小,但在统计上不显著,可能与目前大连期货市场受管制和相对封闭等因素有关;三个大豆期货市场市场均不存在波动持续性。     

我国国债期货市场信息传递及波动溢出检验

随着我国利率市场化进程不断的推进,市场利率的波动不断加剧,各类金融机构迫切需要利率避险工具。利率期货是构建多层次资本市场中重要的组成部分之一,基于此,文章对国债期货市场的信息传递及波动溢出效应进行了研究,通过VECM-GARCH-DCC(ECM)模型,在对现货市场的最便宜交割债券、上证5年期国债现货和国泰上证5年期ETF进行分析的基础上,利用结构变换检验找到数据的结构突变点,以此为依据将数据划分为三个时间样本进行研究,实证结果表明：上市初期国债期货对信息的反应速度较快,且表现出较强的价格发现功能;国债期货对价格发现的贡献度随着时间的延伸而逐渐减小,对现货市场的波动溢出效应也趋于减弱。     

Is there an ‘interest rate – speculation’ relationship? Evidence from G7 in the pre- and post-2008 crisis

The article revisits the IS-LM macroeconomic model by incorporating speculation into the investment function. The discussion is supported empirically by using data from the G7 countries to examine the different interest rate regimes in the pre- and post-2008 financial crisis. The estimation of an ‘anchor’ interest rate provides a reference rate for the G7 countries. The empirical study is extended to examine if the three quantitative easing (QE) episodes in the U.S. are growth promoting. The article concludes that the maintenance of a high and stable interest rate policy is needed for sustainable growth in the G7 countries.     

Financial development and instability: The role of the labour share

This paper examines the role of the labour share in creating instability in a small open economy. We assume that financial markets are imperfect so that entrepreneurs are credit constrained, and that this constraint is tighter for low levels of financial development. Aghion, Bacchetta and Banerjee [Aghion, P., Bacchetta, P., Banerjee, A., 2004. Financial development and the instability of open economies. Journal of Monetary Economics 51, 1077–1106] have shown that as the degree of financial development increases, output rises but instability appears for intermediate levels of financial development. Crucially, they assume that labour is paid before production takes place, and hence crises are solely due to the increased cost of debt repayment as firms accumulate capital. We show that under the more reasonable assumption that wages are paid at the end of the period, changes in the labour share also play a role in eroding profitability. Our analysis also predicts that financial crises are associated with substantial movements in the sharing of value added between capital and labour.     

Investing against the wind: contagion during the recent financial crisis

This article examines the effect of Warren Buffett’s investment in Goldman Sachs on 24 September 2008, during the subprime mortgage crisis. Although this event is arguably perceived to be the biggest expression of confidence in the financial market during the crisis, by conducting event studies, we do not find the major counterparties of Goldman Sachs displayed positive abnormal returns. Moreover, the abnormal return is not significantly related to the counterparty connection. We have similar findings on these financial institutions’ default probabilities using credit default swap.     

Information-based contagion and the implications for financial fragility

This paper explores a global game model of information-based financial contagion. By revealing information on a common fundamental factor and thereby affecting the behavior of creditors, the failure of a single firm can trigger the failure of another firm. The model provides a unique equilibrium framework to assess the consequences of contagion and yields some hitherto unnoticed insights. While contagion increases the correlation among the financial failures of different firms, its impact on the incidence of failure is ambiguous. I consider an analytically tractable version of the model in which the effect on the ex ante failure probabilities is exactly zero. Moreover, the impact of contagion increases with the relevance of a common underlying fundamental, but is limited to firms near the brink of success or failure.     

金融资产收益率波动预测——基于我国股票市场跳跃行为研究

金融资产收益率波动是资产定价和金融风险管理的核心部分,而跳跃是收益率波动中的重要组成部分。基于修正Z-检验,本文检测识别我国股市波动中跳跃行为,并且研究了跳跃的时序特征,统计结果表明,在市场大波动时期,和连续成份相比,跳跃对于波动率具有极其重要的贡献。建立包含跳跃的已实现波动率非齐次自回归模型,在波动模型中纳入滞后绝对日收益率和杠杆效应预测股指收益率波动。实证分析结果显示,对于短期的波动预测,包含跳跃和两种影响因素的波动模型表现最好,然而对于提前1月的长期预测,跳跃和连续波动成份分离模型预测明显优于其它模型,这些事实说明跳跃对股指波动率预测具有重要的影响,好坏消息对波动率非对称性具有短期显著影响,而对长期水平的波动率预测影响不显著。     

基于分层条件Copula的金融危机传染路径研究

本文采用分层条件Copula理论来研究次贷危机和欧债危机下的危机传染路径问题。在研究中采用t-GARCH (1,1)模型拟合各个金融市场的股指日收益率,以条件Copula分析两次危机下中国大陆股市与美国股市、英国股市、日本股市、台湾股市、香港股市2005年1月至2012年7月间的风险传染关系。实证研究表明：次贷危机期间美国股票市场将危机传染到香港股票市场,再由香港股票市场传染其他亚洲股票市场。而在欧债危机期间英国股票市场分别直接传染美国股票市场和香港股票市场,再通过香港股票市场对其他亚洲股票市场传染。两次危机下香港股票市场均是亚洲股票市场受到危机传染的媒介,因此我国在制定防范金融危机传染政策时应考虑对香港股票市场的控制,在传播层面上控制金融危机对我国的传染,减少对我国金融系统的冲击。