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frankwuf · 2022年08月27日

这道题目除了Loss aversion以外,还有没有其他baises?

NO.PZ2018091702000010

问题如下:

Linda is a portfolio manager with excellent record of performance. She owes the success to her team, which is full of experienced experts.  Last year, her fund suffered a severe loss due to economic policy changes, but she believes the investment strategy is still successful.

In a regular meeting, she tells the team the portfolio strategy is still working, and the fund’s return will revert very soon. She will hold underperformed stocks until they cover all the losses.

Which of the following behavior demonstrate Linda’s loss-aversion bias?

选项:

A.

Owing the success to her team.

B.

Her thoughts on portfolio strategy and portfolio performance.

C.

Deciding to hold the stocks until they cover all the losses.

解释:

C is correct.

考点Loss aversion bias的表现

解析Loss aversion bias表现为sell winner, hold loser表现好的股票过早地抛出表现不好的股票持有太久所以C正确

题目里提到了投资经理对账户很有信心,会不会有overconfidence biases?

1 个答案
已采纳答案

王琛_品职助教 · 2022年08月28日

嗨,从没放弃的小努力你好:


1

这道题是根据 R1 课后题第 10 题改编的,其实同学直接看课后题更好一点

如果从课后题的案例背景出发,基金经理是有 overconfidence bias 的

课后题的题干,主要有一个关键词 assures

2

She reassures the team that this strategy has performed well in the past and that the markets will revert and the fund’s returns will return to normal levels.

从关键词 reassure 判断,其反映的偏差是过度自信中的 certainty overconfidence

由于过于肯定自己的判断而赋予结果的概率过高时,就会出现确定性过度自信

请参考基础班讲义 P64



3

这道题的背景,并没有提到 reassure,所以只能说如果有了这个单词,可能说过度自信可能更严谨一些

这道题主要还是想考查 loss-aversion 哈

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虽然现在很辛苦,但努力过的感觉真的很好,加油!