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Shell_eyyy · 2020年03月11日

问一道题：NO.PZ201511190100000404 第4小题 [ CFA III ]

  1. CFA III
  2. Behavioral Finance

* 问题详情，请 查看题干

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.

讲义里提到的suggested deviation from a rational portfolio.patel 最有钱，而且他一半cognitive，一半emotional，所以他的deviation应该最小呀。不考虑财富的影响吗？
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1 个答案

Olive_品职助教 · 2020年03月12日

嗨，爱思考的PZer你好：


最有钱的是Patel，Perez是banker不是billionare，他的3个bias有两个都是可纠正的cognitive error，所以deviation小。这道题让选的就是“ least likely to deviate ”，所以选B。


-------------------------------
虽然现在很辛苦，但努力过的感觉真的很好，加油！


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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

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2022-08-25 22:28 1 · 回答

NO.PZ201511190100000404 Perez. 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. 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。

2022-06-27 14:39 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