岳同学2020-09-01 11:23:54
2011 Q5 請問實際考試這樣寫可以嗎? A Resample 1. A resample approach is not sensitive to small changes in inputs; 2. A resample approach is relatively diversified in asset allocation. BL i. A BL approach can combine the investor’s future view about markets. MCS i. Monte Carlo can determine a path-dependent terminal value; ii. Monte Carlo is a multi-period model, which is allowed the investor to see how the effect of the changes in tax plays out. B 1. Finnegan has debt-like liabilities to pay; 2. Finnegan currently is unemployed and has a lower risk tolerance; 3. Finnegan’s liability is interest-rate sensitive. In order to match the nature of the liability and assets, the investor should choose an ALM approach. C 1. With a higher allocation in equities, the volatility of the portfolio is higher and not suitable for Finnegan who currently has a lower risk tolerance; 2. She used to work as an equity analyst, in which the incomes generated in the position are positively correlated with equity markets.
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Johnny2020-09-07 20:15:16
同学你好
A. Resample. 题目说是要与MVO作比较,而且要基于Finnegan的情况,所以这两点都要涉及到,同学你这里漏掉Finnegan了。出发点是Finnegan自身的情况,比如先描述Finnegan目前风险承担能力较低,而Resampled MVO比传统MVO更加分散化,这能降低风险。因此既要描述Finnegan,也要对两种方法做笔记。
BL也是先描述Finnegan,Finnegan她自身有positive view,因此BL能将她自身观点包含在内。
蒙特卡洛模拟也是先描述Finnegan的情况。
然后本题是10分,要你写出5个优点,因此有可能是一个优点2分,1分给予Finnegan的描述,1分给予对比。
B.本题也是要基于Finnegan的情况说为何ALM由于AO,同学你这里漏掉ALM和AO的对比了。在描述了Finnegan的情况之后要说在这种情况下ALM approach is more appropriate than AO approach
C.本题是要基于Finnegan的human capital来回答,然后同学你的回答中没有提到human capital。你的第二个bullet point是和human capital有关的,但是起码要写到human capital这两个词。
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我想請問MVO 是假設asset return 是 normal distribution 嗎?
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同学你好,MVO是假设回报呈正态分布,因为MVO它只用了回报和标准差来建模,而正态分布是只需要回报率和标准差就能够进行描述了,不用考虑偏度和峰度。我们在MVO的缺点中说过MVO忽视了偏度峰度,因此之后会采用non-normal optimization approaches来进行纠正,那既然用非正态分布来进行纠正,就更能说明传统的MVO是假设正态分布了。
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我想請問在課文中那裡可以找到這段話? 謝謝
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同学你好,原版书没有明确写到MVO的回报率使用哪种分布,但是根据后续对MVO缺陷的判断以及对应的改进措施是能看出MVO假设了正态分布
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