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HG · 2020年12月17日

问一道题:NO.PZ2018091702000012

问题如下:

Linda is a portfolio manager with excellent record of performance. She owes the success to her hard working and sound knowledge of capital market. However, recently her portfolio did not perform well and some investors have withdrawn their investments. In her meeting with her boss Jesse, she said, ‘The underperformance should not blame on me. It is the traders who did not execute my order soon enough to catch up with the market changes.'

Linda least likely has the behavior bias of:

选项:

A.

Illusion of knowledge.

B.

Representativeness.

C.

Self-attribution.

解释:

B is correct.

考点识别behavior bias

解析Representativeness bias 指的是人们在处理新信息时会套用模板也就是凭过去的经验将信息分类Linda没有这样的行为

Illusion of knowledge和Illusion of control有啥区别?

1 个答案

王琛_品职助教 · 2020年12月18日

- 亲在学习行为金融学的偏差时,总结自己容易混淆的偏差,是非常好的习惯
- 个人觉得思路就是,把握好不同偏差的定义和结果,然后遇到考查对应偏差的题目,多揣摩总结题干关键词

- 首先,在偏差总结表中,参考基础班讲义 P108,你会发现只有 illusion of control,没有 Illusion of knowledge
- 因为我们提到 Illusion of knowledge,是因为它和 self-attribution 会造成 Overconfidence,所以是在介绍 Overconfidence 时提到的

- Illusion of knowledge bias 考查的不多, 定义是 "overestimating knowledge levels, abilities, and access to information",在基础班讲义 P95
- illusion of control 考查的较多,需要重点掌握。基础班讲义涉及的是 P71,P118,P141。典型行为比如,认为预测时使用的模型用了很多参数或指标,所以预测结果会很准;或者重仓自己所在的公司的股票。还是比较好判断的哈,加油!

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