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Ethan · 2022年06月27日

答案思路

  1. CFA III
  2. Behavioral Finance

* 问题详情，请 查看题干

NO.PZ201511190100000404

问题如下：

Which investment portfolio is least likely to deviate from the mean–variance portfolio?

选项：

A.

Patel.

B.

Perez.

C.

Johnson.

解释：

B is correct.

Perez has primarily cognitive error biases. Accordingly, it is likely that, with education, the impact of these biases can be reduced or even eliminated. Because cognitive biases dominate, Wang should seek to moderate the effect of these biases and adopt a program to reduce or eliminate the bias rather than accept the bias. The result will be a portfolio that is similar to the mean–variance portfolio.

答案是从FF，cognitive多，可以改进，所以更可能接近mvo。但是我觉得，A直接说了他想主投东家的股票，这怎么可能是MVO？B说想投国内的，肯定也不是。只有C最胆小，没有啥偏好，最可能mvo。

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王琛_品职助教 · 2022年06月28日

嗨，爱思考的PZer你好：


同学对这道题的解题思路有点偏差

本题问的是谁的投资 “least likely to deviate”, 最不可能偏离，也就是问谁的投资最可能是 mean variance portfolio

所以，这道题是在问谁是更偏向理性投资。因为 Perez 主要是 cognitive, 所以选 B

详细解题思路，也请参考：https://class.pzacademy.com/qa/42723

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NO.PZ201511190100000404 问题如下 Whiinvestment portfolio is least likely to viate from the mean–varianportfolio? A.Patel. B.Perez. C.Johnson. B is correct.Perez hprimarily cognitive error biases. Accorngly, it is likely that, with ecation, the impaof these biases creceor even eliminate Because cognitive biases minate, Wang shoulseek to morate the effeof these biases anapt a progrto reor eliminate the birather thaccept the bias. The result will a portfolio this similto the mean–varianportfolio. 不太理解为什么cognitive更不会偏离mean-varianportfolio？2.还有一个问题，这里的Perez和Patel哪个是PP，哪个是FF啊？感觉很难区分，然后我做的时候是认为Perez是PP，Patel是FF，所以第2，4题都选错了。。

2022-12-06 13:06 1 · 回答

NO.PZ201511190100000404 问题如下 Whiinvestment portfolio is least likely to viate from the mean–varianportfolio? A.Patel. B.Perez. C.Johnson. B is correct.Perez hprimarily cognitive error biases. Accorngly, it is likely that, with ecation, the impaof these biases creceor even eliminate Because cognitive biases minate, Wang shoulseek to morate the effeof these biases anapt a progrto reor eliminate the birather thaccept the bias. The result will a portfolio this similto the mean–varianportfolio. 如题。

2022-11-02 20:56 1 · 回答

NO.PZ201511190100000404 问题如下 Whiinvestment portfolio is least likely to viate from the mean–varianportfolio? A.Patel. B.Perez. C.Johnson. B is correct.Perez hprimarily cognitive error biases. Accorngly, it is likely that, with ecation, the impaof these biases creceor even eliminate Because cognitive biases minate, Wang shoulseek to morate the effeof these biases anapt a progrto reor eliminate the birather thaccept the bias. The result will a portfolio this similto the mean–varianportfolio. 考点不应该是组合过于集中吗？所以不可能产生均值回归？

2022-08-25 22:28 1 · 回答

NO.PZ201511190100000404 对于emotionbias，Perez只有regret aversion, Johnson只有overconfince。这么看来两人在被教育后都有相同程度的viation吧？还是说Johnson的home bias也属于emotionbias？

2021-04-12 03:58 1 · 回答