jay1180 · 2023年01月11日
NO.PZ2018101901000020
问题如下：
All of the following are reasons that an apparent deviation from the efficient market hypothesis might not be anomalous except:
选项：
A.The abnormal returns represent compensation for exposure to risk.
Changing the asset pricing model makes the deviation to disappear.
The deviation is well known or documented.
解释：
C is correct.
Bubbles and crashes are well-known and well-documented phenomena yet represent market anomalies.
选对了，但之前的答案说AB是一回事，为啥一样？
pzqa27 · 2023年01月11日
嗨，从没放弃的小努力你好：
举个例子好了，比如我现在用3因子模型测算出我有个超额收益，假如说是5%。那如果我换个模型，比如用4因子模型测一下，这个超额收益可能就变成4%了，这个就是B想说的，可能我换个模型一测就没有超额收益了，比如CAPM 就一个风险因子，而Fama3因子模型表示有3个风险因子，那么可能我用CAPM测一下超额收益是5%，FAMA模型一测我的超额收益是0%，也是说明了在CAPM里面，我其实没有测算价值风险因子和规模风险因子，只考虑了市场风险因子，这里的超额收益实际上应该是价值风险因子和规模风险因子带来的，而CAPM模型中不包含这俩因子，所以有超额收益，一旦我计量了价值风险因子和规模风险因子，那么这个超额收益就消失了，这个是A想说了。可以说B是A的子集吧
----------------------------------------------虽然现在很辛苦，但努力过的感觉真的很好，加油！
NO.PZ2018101901000020 问题如下 All of the following are reasons thapparent viation from the efficient market hypothesis might not anomalous except: A.The abnormreturns represent compensation for exposure to risk. B.Changing the asset pricing mol makes the viation to sappear. C.The viation is well known or cumente C is correct. Bubbles ancrashes are well-known anwell-cumentephenomena yet represent market anomalies. 看了提问里其他人的，好像和我的不一样。不知道这个是bug还是出错了，请技术人员检查一下？
NO.PZ2018101901000020 问题如下 All of the following are reasons thapparent viation from the efficient market hypothesis might not anomalous except: A.The abnormreturns represent compensation for exposure to risk. B.Changing the asset pricing mol makes the viation to sappear. C.The viation is well known or cumente C is correct. Bubbles ancrashes are well-known anwell-cumentephenomena yet represent market anomalies. 看不懂这个题目和说的啥，能一下吗？谢谢！
NO.PZ2018101901000020 问题如下 All of the following are reasons thapparent viation from the efficient market hypothesis might not anomalous except: A.The abnormreturns represent compensation for exposure to risk. B.Changing the asset pricing mol makes the viation to sappear. C.The viation is well known or cumente C is correct. Bubbles ancrashes are well-known anwell-cumentephenomena yet represent market anomalies. 题目问的是“偏离有效市场假说但不是异常”吧？还是有两个解答里面说的“不是偏离有效市场假说不是异常”？
NO.PZ2018101901000020问题如下 All of the following are reasons thapparent viation from the efficient market hypothesis might not anomalous except: A.The abnormreturns represent compensation for exposure to risk.B.Changing the asset pricing mol makes the viation to sappear.C.The viation is well known or cumente C is correct. Bubbles ancrashes are well-known anwell-cumentephenomena yet represent market anomalies. 的B，C也不是很懂
