JL2021-12-30 00:07:43
老师,这里提及发现abnormal return并不意味着市场是无效的,这是为什么?不是说CFA本身认定市场是有效的,在产生超额收益的时候便认为这市场的无效性吗?
回答(1)
Stefanie2021-12-30 09:52:34
同学你好,
在原版书中对于market anomaly市场异象是这么说的:Although considerable evidence shows that markets are efficient, researchers have identified a number of apparent market inefficiencies or anomalies. These market anomalies, if persistent, are exceptions to the notion of market efficiency.
CFA是认为市场是有效的,但是market anomaly是市场有效的例外情况,所以这种市场异象是可以赚取abnormal return的。
- 评论(0)
- 追问(0)
评论
0/1000
追答
0/1000
+上传图片

