问题如下:
How many of the following statements about the evidence of anomalies in stock returns is true?
1. Anomalies are due to the methodologies used in anomaly research, such as data mining.
2. Semi-strong form efficiency holds but weak form market efficiency does not.
3. Weak-form market efficiency holds but semi-strong form efficiency does not.
选项:
A. None.
B. One.
C. Two.
解释:
B is correct.
Only the first statement that anomalies are due to the research methodologies used is true. Most evidence suggests anomalies are not violations of market efficiency.
data mining不是强行找到两件事情的关联吗?然而本届学习的不正常情况都找到了解释理由,所以命题一是否data mining这一处不对啊?