在国外，指数效应的是研究股票市场运行机制和股票市场参与主体行为的重要事件，也是研究股票市场有效性的重要事件。

In foreign countries, the index effect has been an important event for the research of not only the behavior mode of market participants, but also the problem of market efficiency.

youdao

在国外，指数效应的是研究股票市场运行机制和股票市场参与主体行为的重要事件，也是研究股票市场有效性的重要事件。

In foreign countries, the index effect has been an important event for the research of not only the behavior mode of market participants, but also the problem of market efficiency.

youdao