A股税收客户群效应及除息日税负效应实证研究

本文分析了2002—2007年A股市场的纯现金红利分红数据,检验了这一期间在除息日套利的可能性,证实该期间市场存在除息日股价的税负效应,以及税收客户群效应。说明A股市场不同类的投资者对分红具有不同的偏好,上市公司应制定合适的股利政策以最大化股东财富。早期的关于国内市场的研究得到市场不存在税收客户群效应的结论,前后对比说明随着国内证券市场的发展,投资者更趋于理性。     

A股税收客户群效应及除息日税负效应实证研究

本文分析了2002-2007年A股市场的纯现金红利分红数据,检验了这一期间在除息日套利的可能性,证实该期间市场存在除息日股价的税负效应,以及税收客户群效应.说明A股市场不同类的投资者对分红具有不同的偏好,上市公司应制定合适的股利政策以最大化股东财富.早期的关于国内市场的研究得到市场不存在税收客户群效应的结论,前后对比说明随着国内证券市场的发展,投资者更趋于理性.     

中国股市涨跌停板对投资者交易行为的影响

利用A股市场的日内高频数据,研究我国股市涨跌停板制度是否存在"磁吸效应",从而判断涨跌停板的存在是否会影响投资者在面临个股较大涨跌幅时的交易行为.研究结果表明:一,我国A股市场涨跌停板的设定并不会导致投资者流动性风险的增加;二、投资者观察到股价大幅波动时会比较谨慎,涨跌停板的存在抑制了股价波动的进一步增大;三,临近收盘时,如果股价已下跌了较大的幅度,投资者的损失规避交易会造成股价的继续下跌.     

我国上证A股指数收益波动性的研究

本文运用ARCH族模型对我国上证A股股指日收益率及波动性进行实证研究,探索我国A股股指收益率波动特征。实证研究结果发现:上证A股股指日收益率呈现明显的波动集群性特征,因此我国证券市场表现出的波动幅度和风险性要远远大大高于国外成熟的资本市场;我国股票市场存在显著的信息非对称性和杠杆效应,尤其是股票市场好消息导致的市场波动比同等大小的坏消息引起的波动要小。研究结果显示回归模型存在自回归条件异方差,这表明我国股票市场波动具有条件异方差效应。     

我国上证A股指数收益波动性的研究

本文运用ARCH族模型对我国上证A股股指日收益率及波动性进行实证研究,探索我国A股股指收益率波动特征。实证研究结果发现:上证A股股指日收益率呈现明显的波动集群性特征,因此我国证券市场表现出的波动幅度和风险性要远远大大高于国外成熟的资本市场;我国股票市场存在显著的信息非对称性和杠杆效应,尤其是股票市场好消息导致的市场波动比同等大小的坏消息引起的波动要小。研究结果显示回归模型存在自回归条件异方差,这表明我国股票市场波动具有条件异方差效应。     

融资融券视阈下的投资者情绪与A股收益率波动研究

本文以融资融券市场作为研究目标分析投资者的获利倾向、心理状态、行为决策等因素所反映出的投资者情绪特征对A股收益率波动的影响。采用CR I T I C赋权法,通过计算融资融券中融资余额、融券余额、融资融券交易占比以及融资买入量等多个数据指标构建融资融券投资者情绪指数CRISI。结合A股市场日交易数据,分析研究了融资融券市场中投资者情绪指数和股市收益率波动的相互作用。本文实证结果表明,融资融券投资者情绪指数对A股市场收益率存在正向作用,而A股市场收益率对投资者情绪的影响并不显著。此外,A股市场中股价的“异常涨跌”亦对投资者情绪影响不明显。实证结果反映出我国融资融券市场中投资者情绪与A股市场收益率之间存在一种单向的影响关系,为我国股票市场投资者情绪调查机制与监控系统的建立和完善提供了依据。     

上市公司现金股利的信号传递效应实证

本文采用事件研究法对2009年至2014年间沪深两市A股上市公司现金股利支付水平较上一年度变化引起的股价波动进行实证分析,证明我国上市公司的现金股利具有信号传递效应。同时,上市公司现金股利变化导致的市场反应均显著为负,说明了我国投资者并不重视现金股利这一上市公司分红方式。     

机构投资者的彩票类股票交易行为与股价同步性

文章使用Kumar（2009）提出的低股价、高特质波动率和高特质偏度识别股票的彩票特性,利用2010至2012年A股市场的大样本数据,实证分析了机构投资者的博彩偏好及对股价同步性的影响。结果表明,我国机构投资者存在明显的博彩偏好;且这种博彩偏好会提高股价波动的同步性程度。这一结论从博彩偏好的视角,为机构投资者有限理性造成的股价同步性的存在提供了新的证据。     

我国A股上市公司大股东增持短期市场效应研究

本文以我国A股市场发布大股东增持公司股份公告的上市公司为研究对象,对大股东增持的短期市场效应及其影响因素进行理论和实证研究。研究发现大股东增持行为会在短期内带来显著为正的市场效应,公司经营绩效、大股东增持比例以及增持前股票价格走势和市场效应显著正相关,公司股价估值程度同市场效应显著负相关,并且非国有企业市场效应比国有企业更强烈,市场效应在熊市中比在牛市中更加显著。     

QFII是A股市场的稳定器吗?

对QFII是否是A股市场的稳定器目前并无统一的结论。以沪深300、中证500、蓝筹股和QFII重仓股为样本,实证研究了QFII持股对股价波动的影响。研究发现QFII持股比例对股票价格波动的影响因股票市值大小表现出差异性。首先,以沪深300成分股、蓝筹股为样本进行实证研究时,QFII持股比例对股价波动的影响显著为负;其次,以中证500成分股为样本进行实证研究时,QFII持股比例对股价波动的影响为正,但参数并不显著;再次,以QFII重仓的股票为样本进行实证研究时,发现QFII持股比例对股票价格的波动影响不显著。综合来看,QFII持股并不是股价稳定的充分条件,在股票投资中为尽量规避股价波动风险,除需要关注QFII持股比例外,还需关注股票的市值大小以及QFII在该股票上的投资策略等因素。     

Effects of investor tax heterogeneity on stock prices and trading behaviour around the ex-dividend day: the case of Australia

Using a sample of Australian stocks during the 1996–2014 period, this study examines how tax heterogeneity between domestic and foreign investors affects trading behaviour and stock prices around the ex-dividend day. Domestic investors prefer dividends and tend to buy stocks cum-dividend and sell them ex-dividend whereas foreign investors tend to trade in the opposite direction. Abnormal trading turnover increases with tax heterogeneity. Moreover, stocks with a larger domestic investor base are associated with a higher price drop-off ratio on the ex-dividend day and higher market value of franking credits. Overall, our findings support the dynamic dividend clientele hypothesis.     

Tax-Induced Trading and the Identity of the Marginal Investor: Evidence from Sweden

Abstract

Changes in the Swedish tax code during the 1990s were structured in a way that offers an opportunity to test whether ex-dividend prices were determined by the taxation of domestic individual investors. The results presented in this paper indicate that ex-dividend prices were not influenced by the relatively large tax changes for domestic individual investors. In addition, there was no evidence that the taxation of domestic individual investors influenced ex-dividend prices for any specific dividend yield group.     

The ex-dividend day stock price behavior in the Chinese stock market

This paper analyzes the ex-dividend day stock price behavior in the Chinese stock market. This market allows to examine the impact of tax effects while keeping any microstructure factors constant. The findings from non-taxable stocks show that their price, on the ex-dividend day, falls by an amount that is not statistically different from the dividend. For the taxable sample, stock prices of small dividend yield stocks fall proportionally to the dividend paid. For the large dividend yield stocks, the price adjustment depends on the effective tax rate on dividend income. The overall findings are consistent with the tax hypothesis.     

Tax Reform and Ex-Dividend Day Behavior

This paper investigates the effect of a major Canadian tax reform on the ex-dividend day behavior of companies on the Toronto Stock Exchange. The results are inconsistent with the hypothesis that price changes on ex-dividend days reflect the relative taxation of dividends and capital gains for the “representative” investor, but are consistent with the hypothesis that ex-dividend day price behavior reflects short-term trading activities.     

The ex-dividend day stock price anomaly: evidence from the Greek stock market

This paper examines the ex-dividend stock price and trading volume behavior in the Greek stock market for the period 2000–2004. We use both standard event-study methodology and cross-sectional regression analysis in assessing the ex-dividend stock price anomaly. We find that stock prices drop less than the dividend amount. By examining abnormal returns as well as abnormal trading volume around the ex-dividend day, we find strong evidence of short-term trading, which is consistent with the presence of dividend-capturing activities around the ex-dividend day. The results from the cross-sectional regression analysis confirm that the short-term trading hypothesis explains the ex-dividend day stock price anomaly in Greece.

Lost in translation: Delayed ex-dividend price adjustments of Hong Kong ADRs

Previous research documents that Hong Kong stocks have a full ex-dividend price adjustment consistent with dividends and capital gains being tax free. We examine ex-dividend price behavior of Hong Kong ADRs to assess the impact of differing tax environments in US and Hong Kong. These ADRs typically go ex-dividend before their underlying stock. They experience significant abnormal returns of 1.16% on their ex-day; the average ex-day price drop is only 30% of the dividend. However, ADR prices drop when the underlying stock goes ex-dividend subsequently. The cumulative ADR price drop is equal to the dividend. Thus, the ADR ex-dividend adjustment resembles that of the underlying stock, consistent with home country tax laws governing ADR price behavior. Neither liquidity nor transaction costs can explain the anomalous delayed ex-dividend adjustment of ADRs.     

Ex-Dividend Day Stock Price Behavior: The Case of the 1986 Tax Reform Act*

This paper analyzes the behavior of stock prices around ex-dividend days after the implementation of the 1986 Tax Reform Act that dramatically reduced the difference between the tax treatment of realized long-term capital gains and dividend income in 1987 and completely eliminated the differential in 1988. We show that this tax change had no effect on the ex-dividend stock price behavior, which is consistent with the hypothesis that long-term individual investors have no significant effect on ex-day stock prices during this time period. The results indicate that the activity of short-term traders and corporate traders dominates the price determination on the ex-day.     

The value of dividends: Evidence from cum-dividend trading in the ex-dividend period

What is the market value of a dollar of fully franked dividends? We address this question by exploiting a new phenomenon in the Australian capital market—the trading of shares cum-dividend during the ex-dividend period. This allows a relatively clean measurement of the combined value of dividends and the associated tax effects net of transactions costs. Consistent with the theoretical model that we develop, the evidence from this sample is that one dollar of fully franked dividends, after tax effects and transaction costs, is worth significantly more than one dollar. We also show that, in contrast to our measure, the traditional measure of the ex-dividend price drop-off, based on close to close prices, has a lower average value and exhibits substantially more cross sectional variation.     

Ex-dividend date stock behavior and the clientele effect: Evidence around a tax reduction

This study analyzes the behavior of stock prices around the ex-dividend date focusing on the effects of a major tax reduction. Using the 40 most heavily traded shares on the Santiago Stock Exchange, the study evaluates price drop ratios using various measures of ex-dividend day prices. The findings indicate that the dividend tax reduction has an effect on the price drop ratio; this result is consistent with the clientele effect hypothesis.