There are still some anomalies such as small-firmeffect, time effect, Book-to-market effect, momentum trading strategy and contrary investment strategy.
存在着像规模效应、时间效应、价值效应、惯性策略与反转策略等诸多异常现象。
2
Their findings largely redefine the small firmeffect as a "losing firm" effect around the turn-of-the- years Our own results lend further credence to this view.