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凉茶325 · 2022年11月29日

不选OVERCONFIDENCE的原因

* 问题详情,请 查看题干

NO.PZ201511190100000403

问题如下:

Which of the following behavioral biases would be most relevant in constructing a portfolio for Johnson?

选项:

A.

Home bias.

B.

Overconfidence.

C.

Inertia and default.

解释:

A is correct.

Home bias is evident in Johnson’s questionnaire. Johnson has expressed an aversion to investing in non-US equities. Familiarity with their country may lead investors to own high concentrations of domestic assets and ignore the benefits of international diversification.

只是因为great deal of confidence = overconfidence太简单了吗?我知道home bias是对的,但是overconfidence不是也展现出来了,所以是emotional 才判断出他是AA的吗?

1 个答案

王琛_品职助教 · 2022年12月01日

嗨,爱思考的PZer你好:


1)只是因为great deal of confidence = overconfidence太简单了吗?

其实咱们做题的时候,建议转换视角,从「考生」的角度,转换到「出题人」的角度

即,如果你是出题人,你编这道题,编关键句的目的,是想考查什么考点

这道题问的是构建组合时,最相关的行为偏差,对应的关键句是

"On her questionnaire, Johnson indicated a desire for wealth accumulation and an aversion to investing in non-US equities"

翻译过来简单说就是:只投资美国的股票,所以出题人是想考查考生对于 home bias 的理解

如果站在出题人角度,其实这道题不需要纠结哈

2)我知道home bias是对的,但是overconfidence不是也展现出来了

是的,但是要选择最符合题意的选项

相比选项 B 和 C,选项 A 是最符合题意的

遇到这种题目,咱们的学习建议是,把握好 home bias 的原理即可,不建议纠结其他两个选项,因为考试时,可能会换成另外两个干扰项

3)所以是emotional 才判断出他是AA的吗?

并不仅仅是这一个条件

咱们在识别判断投资者分类时,其实是有严格的逻辑的,偏差类型只是其中一个维度

关于 AA 识别,请参考:https://class.pzacademy.com/qa/84121

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