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Zunniyaki · 2023年04月22日

MCS可以解决rebalancing costs的问题么?

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NO.PZ202206210100000405

问题如下:

When addressing the University Planning and Priorities Committee, Black’s preferred approach for dealing with the additional allocation issues is most likely:

选项:

A.correct. B.incorrect because it is unable to address rebalancing costs. C.incorrect because it is unable to address distributions that are dependent on parameters other than expected return and volatility.

解释:

Solution

A is correct. Black’s preferred approach for dealing with the additional asset allocation issues is the use of Monte Carlo simulation. Monte Carlo simulation can accommodate many future possible scenarios, such as portfolio rebalancing costs and non-normal distributions (i.e., distributions that require more than expected return and volatility as parameters).

B is incorrect. Monte Carlo simulation can accommodate many future possible scenarios, such as portfolio rebalancing costs and non-normal distributions (i.e., distributions that require more than expected return and volatility as a parameter).

C is incorrect. Monte Carlo simulation can accommodate many future possible scenarios, such as portfolio rebalancing costs and non-normal distributions (i.e. distributions that require more than expected return and volatility as a parameter).

MCS可以解决rebalancing costs的问题么?请问这个在讲义中哪里有体现。

3 个答案
已采纳答案

lynn_品职助教 · 2023年04月24日

嗨,爱思考的PZer你好:


MSC是针对MVO方法的改进,回顾一下MVO方法的缺点,


其中之一是只能用于single period预测;does not consider trading/rebalancing cost and taxes.


MSC本身是一种统计方法,由计算机按照设定的递推式发射随机数,产生不同的结果,比如,我们假定某只股票明天的价格Pt=Pt-1+ε,ε是随机扰动项,那么我们可以根据计算机程序发射10000个随机数,就得到10000个明天股票价格Pt,对这10000个价格可以画分布,求均值,求标准差等等。其实MSC我们学衍生品也是用过的,模拟布朗运动。


我们用MSC方法可以从0开始画线,也可以从ε开始,这就解决了does not consider trading/rebalancing cost and taxes的问题(最终结果会考虑到期间的现金流以及tax等等)。

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虽然现在很辛苦,但努力过的感觉真的很好,加油!

jerryhuqian · 2023年06月17日

老师您说的ε就是cost的因素吗?不是很理解

lynn_品职助教 · 2023年06月18日

嗨,从没放弃的小努力你好:


是啊,如果不考虑cost,也就是ε=0。

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努力的时光都是限量版,加油!

jerryhuqian · 2023年06月17日

老师您说的ε就是cost的因素吗?不是很理解

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