开发者:上海品职教育科技有限公司 隐私政策详情

应用版本:4.2.11(IOS)|3.2.5(安卓)APP下载

月乔DD · 2020年02月01日

问一道题:NO.PZ2015121810000042

问题如下:

Risk-averse investors demanding a large equity risk premium are most likely expecting their future consumption outcomes and equity returns to be:

选项:

A.

uncorrelated.

B.

positively correlated.

C.

negatively correlated.

解释:

B is correct.

If investors demand high equity risk premiums, they are likely expecting their future consumption and equity returns to be positively correlated. The positive correlation indicates that equities will exhibit poor hedging properties, as equity returns will be high (e.g., pay off) during "good times" and will be low (e.g., not pay off) during "bad times". In other words, the covariance between risk-averse investors’ inter-temporal rates of substitution and the expected future prices of equities is highly negative, resulting in a positive and large equity risk premium. This is the case because, in good times, when equity returns are high, the marginal value of consumption is low. Similarly, in bad times, when equity returns are low, the marginal value of consumption is high. Holding all else constant, the larger the magnitude of the negative covariance term, the larger the risk premium.

考点: equity risk premium & consumption outcomes

解析:问的是股票收益与实体经济的相关性,两者是正相关的,因为实体经济变好,股票收益率增加。正因为两者正相关,所以在经济下滑时,股票不是很好的对冲经济下滑的工具,所以要使风险厌恶的投资者投资股票,就必须给他们更高的风险补偿。

可以理解这里的正相关指的是经济向好的时候,公司盈利比较多,股价也会上涨,所以equity return 高。

但是不能理解讲义里还提到过:In the time of economic weakness or stress, the equity risjk premium to rise. Equity risk premium也是属于equity return的一部分,但这样看来它并不是positive related with consumption outcome的。请问这里怎么理解?

1 个答案

星星_品职助教 · 2020年02月04日

同学你好,

经济差的时候,如果这个时候去买股票,那么需要补偿很多的premium才愿意去买。

经济很差的时候,手里已经持有的股票会大跌,Equity return会很差。

这是两个不同的角度,彼此之间并不矛盾。

-----------

这道题直接这么去理解更好:不论什么时候买股票,由于股票不能起到对冲消费下滑的作用,消费下滑的时候往往股票也会跌,所以要求的补偿(premium)就多。考察的结论是股票是一个bad consumption hedge。


娟娟考CFA · 2020年02月05日

老师,你好,我在另一个的解答下面看到这题的一个解题思路是:“投资者要求large equity risk premium。承担的risk premium越大,要求的收益补偿就会越高,所以equity return是增加(+)的。经济好的时候,股票收益才会增加。”感觉这里同样的前提下,对应的经济是好是坏结果不同,请解答一下,谢谢

星星_品职助教 · 2020年02月05日

这道题并没有问经济是好是坏,经济是一个辅助变量,核心是equity的return和consumption的关系。直接从bad consumption hedge这个角度出发就可以了,没必要去纠结经济。

  • 1

    回答
  • 3

    关注
  • 728

    浏览
相关问题

NO.PZ2015121810000042 问题如下 Risk-averse investors manng a large equity risk premium are most likely expecting their future consumption outcomes anequity returns to be: A.uncorrelate B.positively correlate C.negatively correlate B is correct.If investors manhigh equity risk premiums, they are likely expecting their future consumption anequity returns to positively correlate The positive correlation incates thequities will exhibit poor heing properties, equity returns will high (e.g., poff) ring \"gootimes\" anwill low (e.g., not poff) ring \"btimes\". In other wor, the covarianbetween risk-averse investors’ inter-temporrates of substitution anthe expectefuture prices of equities is highly negative, resulting in a positive anlarge equity risk premium. This is the case because, in gootimes, when equity returns are high, the marginvalue of consumption is low. Similarly, in btimes, when equity returns are low, the marginvalue of consumption is high. Holng all else constant, the larger the magnitu of the negative covarianterm, the larger the risk premium. 考点 equity risk premium consumption outcomes解析问的是股票收益与实体经济的相关性,两者是正相关的,因为实体经济变好,股票收益率增加。正因为两者正相关,所以在经济下滑时,股票不是很好的对冲经济下滑的工具,所以要使风险厌恶的投资者投资股票,就必须给他们更高的风险补偿。 future consumption outcome = marginvalue of consumption?

2024-07-02 10:05 1 · 回答

NO.PZ2015121810000042 问题如下 Risk-averse investors manng a large equity risk premium are most likely expecting their future consumption outcomes anequity returns to be: A.uncorrelate B.positively correlate C.negatively correlate B is correct.If investors manhigh equity risk premiums, they are likely expecting their future consumption anequity returns to positively correlate The positive correlation incates thequities will exhibit poor heing properties, equity returns will high (e.g., poff) ring \"gootimes\" anwill low (e.g., not poff) ring \"btimes\". In other wor, the covarianbetween risk-averse investors’ inter-temporrates of substitution anthe expectefuture prices of equities is highly negative, resulting in a positive anlarge equity risk premium. This is the case because, in gootimes, when equity returns are high, the marginvalue of consumption is low. Similarly, in btimes, when equity returns are low, the marginvalue of consumption is high. Holng all else constant, the larger the magnitu of the negative covarianterm, the larger the risk premium. 考点 equity risk premium consumption outcomes解析问的是股票收益与实体经济的相关性,两者是正相关的,因为实体经济变好,股票收益率增加。正因为两者正相关,所以在经济下滑时,股票不是很好的对冲经济下滑的工具,所以要使风险厌恶的投资者投资股票,就必须给他们更高的风险补偿。 题干没读明白,另外future consumption outcomes 这个是啥意思,是未来消费的意思吗?

2023-09-17 22:31 1 · 回答

NO.PZ2015121810000042问题如下Risk-averse investors manng a large equity risk premium are most likely expecting their future consumption outcomes anequity returns to be:A.uncorrelateB.positively correlateC.negatively correlateB is correct.If investors manhigh equity risk premiums, they are likely expecting their future consumption anequity returns to positively correlate The positive correlation incates thequities will exhibit poor heing properties, equity returns will high (e.g., poff) ring \"gootimes\" anwill low (e.g., not poff) ring \"btimes\". In other wor, the covarianbetween risk-averse investors’ inter-temporrates of substitution anthe expectefuture prices of equities is highly negative, resulting in a positive anlarge equity risk premium. This is the case because, in gootimes, when equity returns are high, the marginvalue of consumption is low. Similarly, in btimes, when equity returns are low, the marginvalue of consumption is high. Holng all else constant, the larger the magnitu of the negative covarianterm, the larger the risk premium. 考点 equity risk premium consumption outcomes解析问的是股票收益与实体经济的相关性,两者是正相关的,因为实体经济变好,股票收益率增加。正因为两者正相关,所以在经济下滑时,股票不是很好的对冲经济下滑的工具,所以要使风险厌恶的投资者投资股票,就必须给他们更高的风险补偿。两个类似的题目都一再强调投资者风险厌恶,且要求大量的风险溢价,这个与“股票表现和消费同向变动”有逻辑联系吗?还是说只是干扰信息?题目能做对,就是觉怀疑自己是不是没理解透。

2023-03-03 17:40 1 · 回答

NO.PZ2015121810000042 我想的是未来经济差,风险就高,所以要求的对风险的补偿就高,经济和风险补偿之间就是反比关系。但是这里问的是equity return,equity return是指Pt+1-Pt,这个是跟risk premium是反比是么? 所以答案是反向关系。我这么理解对吗?

2021-06-03 17:19 1 · 回答

NO.PZ2015121810000042 老师这道题的答案很绕,请问future consumption outcomes到底是什么,是marginutility of future吗?如果是的话,那根据何老师讲的,回报率越高导致未来的utility下降,这个应该是负相关的关系。如果不是的话,那future consumption outcomes到底是什么??

2021-04-21 00:46 4 · 回答