Return Behavior in Emerging Stock Markets

This article investigates the behavior of stock returns in thetwenty stock markets represented in the International FinanceCorporation's Emerging Markets Data Base. The aim is to testfor return anomalies and predictability. Using statistical methodologiesthat have identified seasonal and size-based return differences,as well as general return predictability in industrial markets,we find that these emerging markets display few of the sameanomalies. In particular, we find limited evidence of turn-of-the-tax-yeareffects and small-firm effects. We do find, however, evidenceof return predictability.     

Stock Repurchases and Excess Returns: An Empirical Examination

The excess returns associated with repurchase announcements are viewed largely as a reaction to management's statement that the firm's shares are underpriced; management's signal provides new information that enhances the firm's market value. Although earlier studies have found the excess return to be closely related to the premium set by managment, other factors play a part in determining both the market reaction and the premium level set by management. Among these factors ar relative market capitalization, holdings by institutions, immediate alternative uses for cash, level of insider control, recent stock price performance, relative size of the tender offer, and the resultant change in the firm's capital structure.     

Implied Volatility in Options Markets and Conditional Heteroscedasticity in Stock Markets

This study examines whether or not the volatility of stock index returns forecasted by a GARCH-M specification is consistent with the implied volatility observed in options markets. Recent data for the New York Stock Exchange Composite Index and Standard & Poor's 500 Index and their options are employed. The patterns of the term structure of implied volatility are compared with those of volatility estimates obtained from the GARCH process. The results indicate that the GARCH process appears to partially explain the variation of implied volatilities and the term structure of implied volatilities.     

Local Return Factors and Turnover in Emerging Stock Markets

The factors that drive cross-sectional differences in expected stock returns in emerging equity markets are qualitatively similar to those that have been documented for developed markets. Emerging market stocks exhibit momentum, small stocks outperform large stocks, and value stocks outperform growth stocks. There is no evidence that high beta stocks outperform low beta stocks. A Bayesian analysis of the return premiums shows that the combined evidence of developed and emerging markets strongly favors the hypothesis that similar return factors are present in markets around the world. Finally, there exists a strong cross-sectional correlation between the return factors and share turnover.     

The Time Variation of Risk and Return in the Foreign Exchange and Stock Markets

This paper attempts to determine whether the fluctuations of conditional first and second moments—which are observed for many assets—are consistent with the Sharpe-Lintner-Mossin capital asset pricing model. We test the mean-variance model under several different assumptions about the time variation of conditional second moments of returns, using weekly data from July 1974 to December 1986, that include returns on a portfolio composed of dollar, Deutsche mark, sterling, and Swiss franc assets, together with the U.S. stock market. The results indicate that estimated conditional variances cannot explain the observed time variation of risk premia.     

The Shareholder Base Hypothesis of Stock Return Volatility: Empirical Evidence

We use Swedish ownership data to explore whether a large and diversified shareholder base leads to lower volatility by improving the information content of stock prices. We find that volatility increases in the number of shareholders with respect to both the number of relatively large shareholders and the fraction of shares held by investors with stakes below 0.1%. Volatility is also positively related to the number of institutional owners but negatively related to the number of large and underdiversified institutional owners. Foreign investors have no impact. Our results suggest that a large shareholder base does not lower volatility.     

证券交易税对股票市场发展的影响——基于中国股票市场的实证研究

以中国股票市场印花税7次调整前后的数据为样本,运用事件研究法与两独立样本T检验法可以检验证券交易税对股票市场发展的影响.研究发现:仅靠证券交易税调整很难对股市规模起到预期的调节效果;证券交易税调整对股市流动性能起到较好的政策效果;中国股市流动性太高,为了抑制泡沫,应该制定较高的证券交易税税率.     

中外股票市场收益率相关性分析及其影响路径分解

本文通过计算相关系数,研究了过去15年中国股票市场与国际股票市场收益率的相关性,发现在金融危机爆发的年份里,中外股票市场的收益率存在负相关关系。本文在此基础上利用面板数据回归模型,研究了影响中外股票市场收益率相关性的主要因素,发现出口路径会显著增强收益率的正相关性,对经济危机起到传导作用;外商直接投资路径会显著增强收益率的负相关性,对经济危机起到缓冲作用。建议政府在制定应对金融危机的政策时,积极利用外商直接投资的缓冲作用,同时不断引导出口企业增强国际竞争力,努力扩大内需,减少经出口路径传导至我国的外部冲击。     

基于牛市和熊市不同周期的股票市场动量效应研究

在参考国外研究方法的基础上,以周作为检验周期,将1997年6月至2001年6月的股市作为牛市,2001年6月至2005年6月的股市作为熊市,然后分别检验股市在这两个不同时期的动量效应.研究发现,赢家组合在牛市中存在着正的动量效应,输家组合在熊市中存在着负的动量效应.而牛市中的输家组合和熊市中的赢家组合都存在着价格的反转.     

Uncovering the Risk–Return Relation in the Stock Market

There is ongoing debate about the apparent weak or negative relation between risk (conditional variance) and expected returns in the aggregate stock market. We develop and estimate an empirical model based on the intertemporal capital asset pricing model (ICAPM) that separately identifies the two components of expected returns, namely, the risk component and the component due to the desire to hedge changes in investment opportunities. The estimated coefficient of relative risk aversion is positive, statistically significant, and reasonable in magnitude. However, expected returns are driven primarily by the hedge component. The omission of this component is partly responsible for the existing contradictory results.     

股价波动与通货膨胀关系的实证研究

本文运用格兰杰因果关系检验、脉冲响应函数和方差分解等计量方法,得出以下主要结论：股票价格是影响通货膨胀和通胀预期的重要变量;股票价格是通货膨胀、通胀预期的格兰杰原因,反向因果关系不明显;股票价格的上升,在相当短的时期内,即1—2个季度内,与通货膨胀率和通胀预期负相关,然后从第2—3季度开始,股票价格与通货膨胀率和通胀预期正相关,第9季度开始,股票价格与通货膨胀率和通胀预期负相关。利用财富效应和替代效应假说,本文认为当财富效应大于替代效应时,股价与通货膨胀正相关;当财富效应小于替代效应时,股价与通货膨胀负相关。最后,提出了政策建议。     

An Empirical Examination of Tax Factors and Mutual Funds' Stock Sales Decisions

We examine whether taxes affect stock sales by mutual funds. For certain funds, the expected amount of a given stock sold in a given quarter is 62% greater when liquidation would trigger a capital loss equal to 1% of the value of the portfolio than when a like-size gain would be triggered, a greater effect than is associated with either contemporaneous excess stock returns of 50% or unexpected EPS equal to 50% of the stock price. For growth funds, responses to tax factors are consistent from year to year, and dispositions vary with the year-to-date realized gain.     

The Intertemporal Relation Between the U.S. and Japanese Stock Markets

This paper finds a high correlation between the open to close returns for U.S. stocks in the previous trading day and the Japanese equity market performance in the current period. In contrast, the Japanese market has only a small impact on the U.S. return in the current period. High correlations among open to close returns are a violation of the efficient market hypothesis; however, in trading simulations, the excess profits in Japan vanish when transactions costs and transfer taxes are included.     

An Empirical Study of Volatility in Seven Southeast Asian Stock Markets Using ARV Models

This paper investigates the volatility persistence, volatility variability from day to day and transmission of volatility in seven Southeast Asian stock markets from 1980 to 1991 using the ARV approach. We found strong evidence that shocks to volatility are persistent in Taiwan. Moreover, the Stock Exchange of Thailand Daily Index has the strongest interday volatility fluctuation. Instantaneous causality of volatility among six of the seven markets (except Seoul) was discovered. Besides, there is significant volatility spillover effect from Hong Kong to Taiwan, Malaysia to Singapore and Singapore to Malaysia in the period 1980 to 1991.     

我国国际游资与股市波动关系的实证分析

采用间接法估算出2005年9月至2014年4月我国国际游资数额,并在此基础上实证分析股权分置改革实施后,我国国际游资流动与股市波动之间的关系。分析结果表明:我国股市波动与我国国际游资规模之间存在正向的关系,即我国股市繁荣,会引起大量国际游资流入;股市低迷,则会导致大量国际游资流出。     

中国利率与股市间波动溢出效应的实证研究

采用多变量EGARCH模型分别对中国利率与沪深股市间的波动溢出效应进行的实证研究表明,股票收益率对利率收益率有着显著的短期动态影响;利率与沪深股市间存在着显著的双向波动溢出,除了利率对深圳市场的方向外,其他方向的波动溢出均存在着不对称性.     

An Empirical Examination of the Dissemination of Equity Price Innovations Between the Emerging Markets of Nordic-Baltic States and Major Advanced Markets

: We employ three econometric models to examine the relative influence of the stock markets of the United States, the United Kingdom, France, and Germany on the stock markets of the Nordic-Baltic states. The results show that the Nordic-Baltic markets respond to price innovations from the United States, the United Kingdom, France, and Germany in diverse ways in the period 2001–2013. Response patterns for Finland, Norway, Sweden, Iceland, and Denmark are more significant to market innovations from the United States, the United Kingdom, and France, and less significant to those from Germany. German influence is more significant over Latvia, Lithuania, and Estonia than the rest of the advanced markets. While the dynamics of the Nordic-Baltic markets exhibit a dominance of own price innovation, the influence of the United States is stronger than that of France, the United Kingdom, and Germany. These results imply that investors from the Nordic States may derive greater benefits by diversifying into Germany and vice versa, rather than diversifying into the United States, the United Kingdom, or France. Investors from the Baltic States may obtain greater advantages by adopting portfolio strategies that take advantage of potentially better diversification benefits obtainable from the United States, the United Kingdom, and France rather than from Germany, and the reverse will also be in order.     

对一起股权重组案例的分析

随着我国资本市场的日趋发达,特别是加入WTO后,我国经济对外开放的领域和程度进一步拓宽和提高,在一股外资并购国企过程中,由于被并购企业资产庞大和经济关系复杂等原因,导致在并购实践中涉及的税收政策判断也相对困难很多。案件缘由A企业是一家大型国有企业,1988年该公司投资1