US elections and monthly stock market returns

Using monthly market returns over a period of 104 years, we investigate possible relationships between stock market performance and various occurrences in American elections. Unlike most prior studies, we find little relationship between the two. In the relatively few cases where we do find statistically significant relationships, the degree of explanatory power is quite small. Specifically, market returns do not appear to vary based on partisan control of the government, a result that is robust to the inclusion or exclusion of macroeconomic control variables. Further, the often-discussed “second-half” effect, which predicts higher returns during the second half of a given presidential term, turns out to be both weaker and less straightforward than is commonly believed. Overall, neither election results nor the election cycle appears to offer much help in predicting stock market returns.      

中国股票市场牛熊市运行周期探究

本文运用马尔科夫区制转移模型描述和研究中国股票市场综合指数日收盘价序列的动态轨迹,以此来研究中国股市的牛、熊市周期。实证结果表明,上证和深证综合指数日收盘价在不同的区制状态下均可以表现出较为显著的持续性特征,上证和深证的牛、熊市区间具有明显的协同性。同时发现,中国的经济政策操作与股票市场价格波动及股票市场区制的阶段性转变之间具有明显的相关性。     

浅析我国推出股指期货的功能与作用

股指期货作为一种新型的金融衍生工具即将在我国推出,必将成为我国证券市场发展的一个里程碑.文中介绍了股指期货的概念及特点,并分析了股指期货的功能及其作用.     

定向增发公告效应在股市中的异化现象——关于中国证券市场的实证研究

本文以中国证券市场2006～2008年成功进行定向增发的上市公司为样本,研究了定向增发公告效应在牛市、熊市中的异化现象。研究发现在牛市周期中仅仅公告日当天存在显著的正公告效应,公告日前后都不存在显著的正公告效应;但是在熊市周期中不仅公告日当天存在显著正公告效应,而且从公告日前两天开始一直到公告日后10天都存在显著正公告效应。在不同市场态势下,公告效应与折扣的关系也不相同:在熊市周期中,随着定向增发折扣的增加,公告效应相应减弱,而在牛市周期中公告效应增强。最后,论文给出了基于投资者情绪的理论解释以及相应的启示。     

中国股票市场国际联动性研究

本文选取2000~2015年全球40支股票指数日收盘价,通过建立收益率网络和DCC MVGARCH模型波动率网络对中国股票市场国际联动性进行实证分析。研究表明,随着经济全球化的加深,全球股市收益率和波动率联动逐渐增强;全球金融危机和欧债危机期间,收益率联动网络具有小世界性;中国与全球股市长期处于割裂状态,但在全球金融危机期间与其他市场联系加强。在全球经济形势复杂多变的情况下,中国应针对性采取措施促进股市发展,以分享全球金融一体化利益。     

美股波动影响中、印股市波动的对比研究——基于危机前后两阶段数据的实证检验

本研究通过贝叶斯法则和VEC模型,对比研究了危机前后中国、美国和印度股票市场的信息流动关系,发现次贷危机前后美国股票市场对中国、印度的股票市场信息传递发生结构性变化：危机前,中、印股市是跟涨不跟跌,危机后,中、印股市是跟跌不跟涨,表现了很强的不对称性;但印、美市场的联动性要高于中、美市场。然后本文运用方差分解和脉冲响应函数深入分析了这种结构性变化背后所体现的经济含义,为投资者和管理层决策提供有价值的信息。     

股票市场政策对上市公司盈余管理活动的影响——基于中国股票市场的实证研究

上市公司盈余管理活动一直受到政策制定者、监管者和投资者的关注.本文以沪深两市2002～2009年的8765个公司样本为研究对象,检验我国证券监管委员会和证券交易所针对我国股票市场所颁布的政策对上市公司盈余管理活动的影响.分别使用盈余分布法和GLS回归两种方法分析政策对盈余管理的影响,结果发现我国上市公司为了逃避政策的处罚或者为了满足政策的要求而进行盈余管理.得出的结论是我国证监会和证券交易颁布政策的初衷是为了保护投资者的利益和促进证券市场健康发展,但是如果缺少有效的监管措施和综合的评价体系,可能会诱导上市公司进行盈余管理.     

我国多层次证券市场体系建设研究

随着我国证券市场的快速发展,市场层次单一等问题也日益突出,成为我国证券市场体系建设的一块绊脚石,阻碍其健康快速发展。我们应该比较借鉴美国、日本等发达国家的市场建设经验,针对我国证券市场的现状,首先以交易所为基础,放大证券市场的空间;以"做市商"精神启动我国多层次市场建设;对沪、深交易所重新定位,建立合理的主板市场等。     

The effect of operational slack,diversification, and vertical relatedness on the stock market reaction to supply chain disruptions

This paper empirically examines whether operational slack, business diversification, geographic diversification, and vertical relatedness influence the stock market reaction to supply chain disruptions. The results are based on a sample of 307 supply chain disruptions announced by publicly traded firms during 1987–1998. Our analysis shows that firms with more slack in their supply chain experience less negative stock market reaction. The extent of business diversification has no significant effect on the stock market reaction. Firms that are more geographically diversified experience a more negative stock market reaction. We find that firms with a high degree of vertical relatedness experience a less negative stock market reaction. These results have important implications on how firms design and operate their supply chains to mitigate the negative effect of supply chain disruptions.     

Structural estimation of stock market participation costs

This paper develops and estimates a dynamic model of stock market participation, where consumers' decisions regarding stock market participation are influenced by participation costs. The practical significance of the participation costs is considered as being a channel through which financial education programs can affect consumers' investment decisions. Using household data from the Panel Study of Income Dynamics, I estimate the magnitude of the participation cost, allowing for individual heterogeneity in it. The results show the average stock market participation cost is about 4–6% of labor income; however, it varies substantially over consumers' life. The model successfully predicts the level of the observed participation rate and the increasing pattern of stock market participation over the consumers' life cycle.     

The geometry of Black's single peakedness and related conditions

By using geometry to analyze all three candidate profiles satisfying Black's single peakedness constraint, we characterize all associated election behavior. The same analysis is applied to related profile constraints where some candidate never is top-ranked, or never bottom ranked.     

不同分布对ARCH类模型结果的影响——基于上证指数收益率的对比分析

本文应用ARCH类模型对1990～2006年的上证综指收益率序列进行分析,对t分布和正态分布下的ARCH类模型结果进行对比,发现不同的分布具有不同的结果,选择恰当的残差分布类型是正确使用ARCH类模型的前提。