中国股票市场流动性风险溢价研究

本文在对Fama三因素模型和LACAPM模型进行改进的基础上,实证研究了中国股票市场的流动性风险溢价、规模效应以及价值效应。实证结果发现,改进的FAMA三因素模型能够比CAPM更好地解释价值效应,但却不能解释规模效应和流动性风险溢价现象;而改进的LACAPM在解释市场异象上的有效性则明显优于其他定价模型。     

收益率差异视角下我国股票流动性测度指标的比较研究

在传统资产定价模型中依次引入换手率、成交金额、Amihud非流动性比率三种流动性度量指标,构造出改进后的Fama三因子模型,通过Fama-Macbeth两阶段回归的方法来探讨我国A股市场流动性溢价效应以及三种流动性度量指标的不同表现;然后,采用分位数回归的方法进一步检验三种流动性指标各自的适用范围。研究表明:中国A股市场存在较为显著的流动性风险溢价现象;不同的流动性指标与股票收益率之间的关系不同,换手率适合在低收益率情况下流动性的测度,Amihud非流动性比率更适合在中高收益率情况下流动性的测度,而成交金额指标未能通过检验,表现相对较差。     

创业板股票流动性对收益率影响的实证研究

创业板市场自设立以来,其运行和发展状况一直受到投资者广泛关注。本文通过研究创业板股票流动性对收益率的影响,得出的主要结论有我国创业板市场的流动性对收益率有影响,创业板市场存在流动性溢价现象。     

创业板股票流动性对收益率影响的实证研究

创业板市场自设立以来,其运行和发展状况一直受到投资者广泛关注。本文通过研究创业板股票流动性对收益率的影响,得出的主要结论有我国创业板市场的流动性对收益率有影响,创业板市场存在流动性溢价现象。     

中国股票市场流动性溢价实证研究——基于1988至2011年个股面板数据的分析

本文以个股为切入点,将换手率和Amihud流动性比率作为流动性因子代表指标,建立基于面板数据的个体固定效应变截距回归模型,对我国A股股票市场流动性溢价存在性进行理论剖析和实证检验.实证结果表明,股票预期收益与个股换手率呈反向相关关系,与个股Amihud流动性比率呈正向相关关系.同时,分别从我国股市这两种流动性指标出发得出完全一致的结论,即我国股市存在显著的流动性溢价,流动性证实是股票预期收益的关键影响因素之一     

流动性风险与资产定价——基于沪市的数据研究

对流动性的定价是金融经济学研究的重点之一.在国内外已有研究的基础上,通过建立实证模型,检验沪市是否支持“非流动性补偿”假设以及流动性风险是否得到显著定价.结果证明,流动性β值为负的股票预期会产生高收益,沪市支持“非流动性溢价”假设,流动性风险得到显著定价.同时,市场风险溢价也在沪市得到显著体现,市场风险β值对股票收益具有一定的解释能力.     

考虑流动性的三阶矩资本资产定价的理论模型与实证研究

本文把流动性风险、偏态风险引进传统CAPM模型中,推导出基于流动性的三阶矩资本资产定价的理论模型。本文的模型表明,证券(组合)的收益依赖于它的期望流动性成本、其流动性成本和市场流动性成本的协方差以及其收益和市场收益的协方差与协偏态。本文采用我国A股市场的股票收益数据对模型进行了实证检验.检验结果表明,我国A股市场的证券(组合)的风险溢价在大盘升降区间体现了不同的特征,无论是在全样本区间还是两个子样本区间,基于流动性的三阶矩资本资产定价模型都能更好的拟合资产收益,说明了流动性和偏态因素在我国A股市场的资产定价中有重要影响。     

三因素模型定价：中国与美国有何不同？北大核心CSSCISSCI

Fama-French三因素模型是资产定价的经典模型,在资本市场实践中广为应用。对比检验中美两国股票组合同期收益率,本文发现中国股市系统性风险突出,存在着市值规模效应,但账面市值比效应并不显著。中国股票组合的收益率是能够被市场风险溢价和市值规模效应的二因素模型较好诠释的。较之美国股市,中国政策信息影响频仍,个股对市场的变化敏感,但是中国投资者对于上市公司的成长性关注尚且不足。这就是说,相对于美国股市而言,中国股市的资源配置功能尚未完全实现。     

创业板与主板、中小板市场的联动性实证分析

创业板在推出后一直是众多学者研究的热点。创业板与主板、中小板三者之间在不同时期的联动性表现是否一致,也成为了众多投资者十分关心的一个问题。本文基于相关理论,对其联动性进行分阶段性实证检验,发现了一个较为新颖的结论,即在创业板成立初期,主板市场、中小板市场和创业板市场之间存在收益率的联动效应,主要表现在主板市场会对中小板市场和创业板市场存在相应的冲击效应;而在近两年,几个板块市场开始出现分离,通过统计数据表明各个板块之间不再存在联动效应。     

我国股市春节的节日效应研究——基于28个行业数据的实证分析

本文以2000—2017年申万一级行业收益率为样本,建立GARCH-M模型对28个行业春节前后三天收益率进行计量回归,探究我国股市是否存在春节的节日效应。结果表明:我国股市在春节前后三个交易日表现出不同的收益率与风险;在不同的行业中,均存在春节的节日效应,但是周内效应和风险溢价理论并不能完全解释该异象,而各行业间的效应表现也有所差异。     

教育与资本怎样的前景怎样的现实

来自政府的声音: "动员各种社会资源,发展教育" 此次论坛上财政部长助理张少春的发言是最受关注的发言之一.他的演讲传达出的信息有这样几方面:第一,谈到现实,他认为全社会对教育的巨大需求与我国公共投入不足已成为我国教育事业发展的突出矛盾.近年来,以公共部门投入为主,多渠道筹措教育经费的教育投入机制成为解决这一问题的重要途径,也使得公共部门与私营部门在教育领域的合作日益密切.第二,谈到前景,他认为,1.中国经济持续、快速的增长对高技能人才产生巨大的需求,这为私营部门的参与提供了广阔空间.2.随着公共财政职能的不断完善,财政资金将在各项教育事业中重新进行分配,进一步优化财政支出结构,提高资金的使用效率.在"十一五"期间,我国将把公共支出的重点转移到农村.我们将逐步把全体农村适龄儿童的义务教育全部纳入公共财政体制.     

Debt and Taxes and Uncertainty

With a graduated personal tax schedule, Miller showed that there could be an equilibrium debt supply for the corporate sector as a whole. In the presence of uncertainty there is also a unique debt/equity ratio for each individual firm, and this ratio is related to the firm's operational risk characteristics. However, if firms merge and spin off in response to tax incentives, the identity of firms is ambiguous and only the corporate sector is a meaningful construct. These arguments are developed in both discrete and continuous models that employ extensions of the arbitrage-free pricing theory.     

Director gender and mergers and acquisitions

Does director gender influence CEO empire building? Does it affect the bid premium paid for target firms? Less overconfident female directors less overestimate merger gains. As a result, firms with female directors are less likely to make acquisitions and if they do, pay lower bid premia. Using acquisition bids by S&P 1500 companies during 1997–2009 we find that each additional female director is associated with 7.6% fewer bids, and each additional female director on a bidder board reduces the bid premium paid by 15.4%. Our findings support the notion that female directors help create shareholder value through their influence on acquisition decisions. We also discuss other possible interpretations of our findings.     

Political corruption and mergers and acquisitions

This research examines the relation between political corruption and mergers and acquisitions (M&As). We find that local corruption increases firm acquisitiveness but decreases firm targetiveness. The levels of corruption in acquirer areas relate positively to the bid premiums and negatively to the likelihood of deal completion. Corruption motivates acquiring firms to use excess cash for payment, which mitigates the negative effect of corruption on acquirer shareholder value. The evidence indicates that acquisitions help acquiring firms convert cash into hard-to-extract assets and relocate assets from the high to low corruption areas, thereby shielding their liquid assets from expropriation by local officials.     

East and west and north and south : A preliminary model

The Brandt report and other proposals for a new North-South world order continue to be the focus of lively debate, yet it is often argued that little concrete has emerged from their recommendations. A major reason for this, the author argues, is that the East-West conflict component is not sufficiently taken into consideration-East-West tensions are a severe constraint on and a determining factor of North-South relations. Using influence diagrams, the author develops a flexible framework for discussion and assessment of N/S-E/W relations.     

Tournament-based incentives and mergers and acquisitions

This research examines the relation between tournament-based incentives, which are proxied by the difference between a firm's CEO pay and the median pay of the senior managers, and mergers and acquisitions (M&As). We find that tournament-based incentives are positively related to firm acquisitiveness and acquiring firms' stock and operating performance. Further analysis indicates that positive acquisition performance increases the likelihood of the CEO being promoted from inside the acquiring firm. Our evidence is consistent with the view that tournament-based incentives motivate acquiring firms' managers to make greater efforts and take more risk that result in superior acquisition performance.     

Trust and cross-border mergers and acquisitions

A number of studies suggest that social trust matters for investment. Using different measures of trust from World Values Survey, we show that countries where people display higher levels of trust engage in more cross-border M&A activities. When they do, these acquirers pay lower premiums. To the extent that these acquirers also tend to engage in larger acquisitions as well, our findings suggest that a larger selection pool of potential targets and higher value targets enable these acquirers to negotiate for lower premiums. We do not find evidence of the significant effect for target country trust levels. Hence, trust may benefit those acquiring firms in cross-border transactions.