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lcrcp3 · 2023年10月11日

如题

NO.PZ2023040601000085

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:

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.

未来的消费结果和股票收益是正相关,这话什么意思?对于风险厌恶投资者为什么是这样?

2 个答案

星星_品职助教 · 2023年10月14日

​回复问题二:由于股票无法对冲消费水平的下滑,所以风险比较高,如果投资者厌恶风险,则需要更多的补偿才愿意买股票。

星星_品职助教 · 2023年10月14日

​回复问题一:股票收益和消费水平是正相关代表对应经济不好,两者会同时下滑,经济好则同时上升。