abnormal return

基本解釋

Herd behavior has an impact on present stock return, buy-herding behavior lead to the positive abnormal return, and sell-herding behavior results negative abnormal return.
基金羊群行為對股票當(dāng)期收益存在顯著影響，買入羊群行為使股票出現(xiàn)正超額收益，賣出羊群行為使股票出現(xiàn)負(fù)超額收益。
By doing parametric test of the distribution of abnormal return, the paper demonstrate that the semi-strong form of the EMH does not hold in China stock market.
通過對事件發(fā)生前后異常收益率的分布情況進(jìn)行參數(shù)檢驗(yàn)，得到了中國股市非半強(qiáng)式有效的結(jié)論。
The Event-study Methodology is adapted to make analysis on Cumulative Average Abnormal Return (CAR) of all samples, of samples in Shanghai market and of samples in Shenzhen market respectively.
第三章對外資并購的股價(jià)反應(yīng)進(jìn)行實(shí)證分析。主要采用事件分析法分別對外資并購全部樣本、滬市樣本及深市樣本的累計(jì)超額平均收益進(jìn)行實(shí)證研究。

Likewise, investors significantly punished companies for eco-harmful events with a corresponding abnormal return of -.65%.
FORBES: CSR Pays for Itself: Here's the Evidence
Specifically, the impact of eco-harmful events has gone from an abnormal return of -.42% in the 1980s to -.66% in the 1990s and as high as -1.12% in the 2000s.
FORBES: CSR Pays for Itself: Here's the Evidence

超額收益率
異常收益
超常收益
Apparently stock dividends own a higher percentage of abnormal return. As a result, investors prefer stock dividend rather than the others.
在實(shí)證結(jié)果中可以看到，股票股利相對現(xiàn)金股利而言有較高的超常收益率，因而投資者偏好股票股利。
超額回報(bào)