The abnormal returns reflect the effect of the event.
超额收益反映事件的影响。
The article analyses whether or not the negotiated transitions, which happen from 1998 to 2003, brought the abnormal returns to the investors by using the event study.
本文采用事件研究法对1998年至2003年间所发生的协议转让事件是否给投资者带来超常收益进行了全面分析。
Considerable abnormal returns are available from holding a portfolio of the socially least desirable stocks.
持有社会最不喜欢的证券组合，即可得到相当可观的非正常回报。
Experiments carried out on abnormal returns detection in stock market show that the VODM is feasible.
股票市场中异常收益检测的实验表明，VODM及其算法是有效的。
The new method USES reference portfolio formed on the base of corporation market value to calculate long-run abnormal returns, USES adjusted-t test or rank test to test abnormal returns.
改进的长期异常回报率计算方法是基于市值的参考组合法，改进的检测方法是偏度矫正的t检验法和秩和法。
Competitive advantage is the ability to earn abnormal returns by resisting the forces of competition.
竞争优势是指获得特别回报的能力，其与竞争力相反。
The result suggests that significantly negative cumulative abnormal returns arise around the publication of guarantee statements.
结果发现，上市公司发布担保公告日前后出现显著为负的累积非正常报酬。
And the empirical study proves that our stock market is not semi-strong efficient because investors can gain abnormal returns with publicly information.
同时实证结果表明市场尚未达到半强式有效，投资者可以利用公开的信息获得超额收益。
The IPOs' long-run abnormal returns are sensitive to which benchmark's return is adjusted by, and to which method of weighting average is employed.
IPO长期超常收益率对使用何种参照指标的收益率来调整以及使用何种加权平均方法很敏感。
There are some factors influent the long - run abnormal stock returns.
对影响长期超额收益的几个影响因素进行了分析。
However, abnormal phenomena as the first day of IPO returns over a long time but there had never been completely corrected, domestic and foreign scholars in this field has been studied.
然而作为异常现象的IPO首日超额收益却长期存在，从未被彻底纠正过，国内外的学者在这个领域进行了大量研究。
The insider's sell behavior is not significant rationality and it can't reach abnormal returns in the long-term, has no reference value for other investors.
内部人卖出行为的合理性并不显著，不能取得长期的超收益，对中长期投资者无明显的参考作用。
The study found that the dividend stocks compared with the non-dividend stocks exists abnormal returns, and abnormal returns of the high dividend stock exceeds the low.
实证研究发现：分配股利股票相对于不分配股利股票存在超额收益，高股利股票较低股利股票有较高的超额收益。
The results show that investors heterogeneity as a risk factor carries explanatory power for cumulative abnormal returns of underlying stock before and after warrant listing.
研究结果发现，投资者异质作为一种风险性因素在权证上市前后显著影响标的证券的收益。
The outcomes of empirical research are contrary to the results of empirical research overseas. Namely the equity mergers and bidding firms gain positive abnormal returns.
即股权支付而非现金支付的并购得到正的异常收益，并购方而非目标方得到正的异常收益。
And the ownership structure have effect on the long-run abnormal stock returns.
研究表明股权结构对长期超额收益有影响。
The event study analysis shows that announcements of warrant-bonds issued by Chinese listed companies are associated with significant positive abnormal returns.
事件研究的结果发现我国上市公司分离交易可转债的发行公告具有显著的正效应。
With the implementation of the project, the rate of abnormal display has been reduced, more losses avoided, great economic returns brought, and enterprise competitiveness improved.
本项目的实施为公司降低了画面异常不良率，避免了更多的损失，带来了很好的经济效益，提升了企业的竞争力；
The abnormal trading volume and returns around the period of the rename of the stock and the overreaction of the market on the rename of the stock are found.
研究发现在股票更名前后存在超常交易量和超额收益率，市场对更名事件存在过度反应。
The abnormal trading volume and returns around the period of the rename of the stock and the overreaction of the market on the rename of the stock are found.
研究发现在股票更名前后存在超常交易量和超额收益率，市场对更名事件存在过度反应。
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