融资融券交易对市场和标的个股波动影响的研究

作为证券市场的重要制度之一,融资融券交易理论上应具有价格发现,价格稳定,提高流动性等基本功能。本文从融资、融券交易对市场和个股两个层面系统而全面的分析融资交易和融券交易的价格稳定作用。对市场波动性的影响的研究上主要借助GARCH族模型,VAR模型,脉冲响应和方差分解等计量分析方法;在对个股的影响上主要是借助面板数据分对个股的总体效应和个体效应展开分析。研究发现：融资交易对指数波动没有显著影响,融券交易对指数波动有一定平抑作用;融资融券交易对标的个股有价格稳定作用,除极个别个股的融资作用表现不确定。     

Have Individual Stocks Become More Volatile? An Empirical Exploration of Idiosyncratic Risk

This paper uses a disaggregated approach to study the volatility of common stocks at the market, industry, and firm levels. Over the period from 1962 to 1997 there has been a noticeable increase in firm-level volatility relative to market volatility. Accordingly, correlations among individual stocks and the explanatory power of the market model for a typical stock have declined, whereas the number of stocks needed to achieve a given level of diversification has increased. All the volatility measures move together countercyclically and help to predict GDP growth. Market volatility tends to lead the other volatility series. Factors that may be responsible for these findings are suggested.     

融资融券交易对市场和标的个股波动影响的实证研究

作为证券市场的重要制度之一,融资融券交易理论上应具有价格发现、价格稳定、提高流动性等基本功能。本文从融资、融券交易的价格稳定理论机制出发,针对市场和个股两个层面系统而全面地分析融资交易和融券交易的价格稳定作用。研究发现：融资交易对指数波动没有显著影响,融券交易对指数波动有一定平抑作用;融资融券交易对标的个股有价格稳定作用,除极个别个股的融资作用表现不确定。     

Connected Stocks

We connect stocks through their common active mutual fund owners. We show that the degree of shared ownership forecasts cross‐sectional variation in return correlation, controlling for exposure to systematic return factors, style and sector similarity, and many other pair characteristics. We argue that shared ownership causes this excess comovement based on evidence from a natural experiment—the 2003 mutual fund trading scandal. These results motivate a novel cross‐stock‐reversal trading strategy exploiting information contained in ownership connections. We show that long‐short hedge fund index returns covary negatively with this strategy, suggesting these funds may exacerbate this excess comovement.     

The Dynamic Relation Between Returns and Idiosyncratic Volatility

We claim that regressing excess returns on one-lagged volatility provides only a limited picture of the dynamic effect of idiosyncratic risk, which tends to be persistent over time. By correcting for the serial correlation in idiosyncratic volatility, we find that idiosyncratic volatility has a significant positive effect. This finding seems robusrt for various firm size portfolios, sample periods, and measures of idiosyncratic risk. Our findings suggest stock markets mis-price idiosyncratic risk. There may be some measurement problems with idiosyncratic risk. There may be some measurement problems with idiosyncratic risk that could be related to nondiversifiable risk.     

出售股票还是出售资产

以股票形式出售和以资产形式出售有区别吗 当一个人开始业务,创建自己的公司时,是建立S型公司还是建立C型公司,完全取决于公司的长期融资战略、各种法律条款及对交税的要求,而可能从来没有考虑过公司的形式会影响公司日后的出售.其实,当一个企业决定出售时,企业的形式会对销售价格有很大的影响.     

追踪股票的特征分析

追踪股票打破了传统证券理论下股票资产的不可分割性，融入了将资产所有权和收益权分离的思想，使股票收益权与母公司业务分支实体的经营业绩挂钩：同时也突破了“一股一票”式的公司决策参与权。     

人寿保单个人所得税课税制度的国际比较

人寿保单的个人所得税课征条款主要涉及到保费税前扣除制度、保单给付课税制度、未支付积累收益课税制度等三方面内容。人寿保单个人所得税制度的选择因国而异,在具体安排上不但要考虑与人寿保单特性相适应的技术,更多地是从国家的产业政策和宏观经济调控目标考虑。     

The Investment Performance of Common Stocks in Relation to Their Price–Earnings Ratios: An Update of the Basu Study

In this paper, the relationship between the investment performances of equity securities and their price–earnings ratios is examined using an approach similar to the one employed by Basu in a 1977 paper. From the tests, we conclude that, from 1979 through 1984, there were some moderate excess rates of return earned by selecting stocks based on their price–earnings ratios but that these excess rates were not obtained from investing in low price–earnings stocks.     

双重上市股票的价格信息传递——基于内地香港双重上市股票的实证分析

本文选取2003年到2007年4月的内地、香港双重上市股票为样本，运用似不相关（suR）方法实证考察两个市场之间的价格信息传递情况。研究发现：个股日内收益受A股市场大盘影响比同一只股票在香港市场受恒生指数的影响要大；股票价格信息主要由内地流向香港；A股的目内收益显著影响了同一天香港的日内收益，而A股的日内收益对香港隔夜收益的影响相对较弱。     

走向神坛的亿安科技

股市是创造神话的场所,想当年中国股市建立初期,不少人就是相信一夜暴富的神话才争先恐后入市的.     

Short Interest and Lottery Stocks

We find short interest‐related mispricing is strongest in lottery stocks. As stocks become more lottery‐like, arbitrage risk increases, resulting in higher overpricing (underpricing) in high (low) relative short interest (RSI) stocks. Monthly portfolio alphas are –1.61% for high RSI lottery stocks, whereas high RSI stocks with the least lottery‐like attributes show statistically insignificant alphas. Among lightly shorted stocks, lottery securities exhibit monthly alphas of 1.80%. Thus, although lottery stocks as a group typically underperform, investors can earn positive abnormal returns in lightly shorted lottery stocks. Our results suggest that lottery stocks’ greater noise trader risk and higher transactions costs impedes arbitrage in short interest‐related mispricing.     

January Seasonality in Preferred Stocks

This study documents the existence of January season-ality in preferred stocks. January seasonality is found in all grades of preferred stock while stronger summer returns are also observed in low-grade preferred, which resembles findings reported in common equity. Although January seasonality is also found in high-grade preferred stocks, a size effect-which is used to explain the January seasonality in low-grade bonds-may not be able to account for the same seasonality observed in high-grade preferred.     

Is the Market Portfolio a Dynamic Factor? Evidence from Individual Stock Returns

This paper uses a factor model to test whether the market portfolio is a dynamic factor in the sense that individual stock returns contain a premium linked to the conditional risk of the market portfolio. The market conditional risk is based on a decomposition of the market variance into a time-varying trend component and a transitory component. The evidence shows that the conditional market premium is rising when the permanent trend rises relative to the conditional variance. The evidence for individual stock returns supports the notion that the market portfolio is a dynamic factor. Individual stock return autocorrelations are fully explained by the time variation in the market premium. The risk premia attributed to static factors are statistically insignificant.     

Stay-at-Home Stocks Versus Go-Outside Stocks: The Impacts of COVID-19 on the Chinese Stock Market

Asia-Pacific Financial Markets - This paper investigates the distinct market reactions to the COVID-19 outbreak by focusing on two groups of stocks in the Chinese stock market, i.e., the...     

论人力资本股权化

随着生产力的迅猛发展和经济时代的变迁 ,人力资本要素将逐步成为经济发展的根本动力。如何激励企业人力资本所有者长期而有效的创新行为成为现代企业制度安排所要解决的主要问题 ,而其最佳的制度安排就是让人力资本所有者与物质资本所有者共同拥有企业的所有权 ,参与企业的收益分配。为此 ,本文提出人力资本股权化思路 ,并对其理论依据、政策依据、现实可行性以及具体的实施构想进行详细的论述。     

中国人民大学金融与证券研究所所长吴晓求认为:减持国有股要公正

国有股减持在实行了4个月后,就停止了.这是非常罕见的.这一方面说明我们的决策制度在进步,专家们的意见起作用了,开始走向更加实事求是.     

“巴菲特中国概念股”的蜕变

中国股票市场素有浮躁的炒作之风,一些股票因为各种原因被赋予某种特别内涵,概念股应运而生。从2003年买入中国石油的股票以来,被誉为股神的巴菲特与中国投资者产生了真实的交集。此后,一些与巴菲特发生直接或间接联系的中国股票受到投资者不同程度的关注,这种现象被媒体称为巴菲特效应。     

区域金融发展与经济增长关系的动态面板检验

中国区域金融发展与经济增长具有正向关系,金融发展有助于加快城乡居民收入增长。随着金融发展水平的提高,资本积累的速度会减缓,同时金融发展对全要素生产率提高有显著正面作用,这意味着金融发展有助于推动区域经济增长方式从粗放型要素投入向集约型技术水平提升转变。未来,努力提升中西部地区金融发展的水平,将有助于中西部地区长期经济增长,加快中西部地区追赶东部地区的步伐。在控制一些变量后,中国区域经济增长表现出了条件收敛的特征。