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hyi725 · 2023年08月20日

3为什么不对?

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NO.PZ201805280100000102

问题如下:

Rebecca Mayer is an asset management consultant for institutions and high-net-worth individuals. Mayer meets with Sebastian Capara, the newly appointed Investment Committee chairman for the Kinkardeen University Endowment (KUE), a very large tax-exempt fund.

Capara and Mayer review KUE’s current and strategic asset allocations, which are presented in Exhibit 1. Capara informs Mayer that over the last few years, Kinkardeen University has financed its operations primarily from tuition, with minimal need of financial support from KUE. Enrollment at the University has been rising in recent years, and the Board of Trustees expects enrollment growth to continue for the next five years. Consequently, the board expects very modest endowment support to be needed during that time. These expectations led the Investment Committee to approve a decrease in the endowment’s annual spending rate starting in the next fiscal year.

Exhibit 1. Kinkardeen University Endowment—Strategic Asset Allocation Policy

As an additional source of alpha, Mayer proposes tactically adjusting KUE’s asset-class weights to profit from short-term return opportunities. To confirm his understanding of tactical asset allocation (TAA), Capara tells Mayer the following:

Statement 1: The Sharpe ratio is suitable for measuring the success of TAA relative to SAA.

Statement 2: Discretionary TAA attempts to capture asset-class-level return anomalies that have been shown to have some predictability and persistence.

Statement 3: TAA allows a manager to deviate from the IPS asset-class upper and lower limits if the shift is expected to produce higher expected risk-adjusted returns.

Capara asks Mayer to recommend a TAA strategy based on excess return forecasts for the asset classes in KUE’s portfolio, as shown in Exhibit 2.

Exhibit 2. Short-Term Excess Return Forecast

Following her consultation with Capara, Mayer meets with Roger Koval, a member of a wealthy family. Although Koval’s baseline needs are secured by a family trust, Koval has a personal portfolio to fund his lifestyle goals.

In Koval’s country, interest income is taxed at progressively higher income tax rates. Dividend income and long-term capital gains are taxed at lower tax rates relative to interest and earned income. In taxable accounts, realized capital losses can be used to offset current or future realized capital gains. Koval is in a high tax bracket, and his taxable account currently holds, in equal weights, high-yield bonds, investment-grade bonds, and domestic equities focused on long-term capital gains.

Koval asks Mayer about adding new asset classes to the taxable portfolio. Mayer suggests emerging markets equity given its positive short-term excess return forecast. However, Koval tells Mayer he is not interested in adding emerging markets equity to the account because he is convinced it is too risky. Koval justifies this belief by referring to significant losses the family trust suffered during the recent economic crisis.

Mayer also suggests using two mean–variance portfolio optimization scenarios for the taxable account to evaluate potential asset allocations. Mayer recommends running two optimizations: one on a pre-tax basis and another on an after-tax basis.


2. Which of Capara’s statements regarding tactical asset allocation is correct?

选项:

A.

Statement 1

B.

Statement 2

C.

Statement 3

解释:

A is correct.

The Sharpe ratio is suitable for measuring the success of TAA relative to SAA. Specifically, the success of TAA decisions can be evaluated by comparing the Sharpe ratio realized under the TAA with the Sharpe ratio that would have been realized under the SAA.

考点:tactical asset allocation

解析:Statement 1考查的是结论,Sharpe ratio可以用来评估TAA的表现是否优于SAA,正确。Statement 2描述的是systematic TAA而不是Discretionary TAA ,错误。Statement 3错在deviate from这个词,意思是偏离,原文的意思是TAA 可以偏离出IPS的上下限,说反了,TAA 可以偏离但不能超过IPS限定的上下限。因此正确选项A。

错在哪里?不是可以short time deviates的嘛

1 个答案

lynn_品职助教 · 2023年08月21日

嗨,从没放弃的小努力你好:


错在哪里?不是可以short time deviates的嘛


即使是short time deviates 也不能超出range范围。


TAA有两种(systematic TAA&Discretionary TAA),但都不可以偏离取值范围,事实上同学应该也会遇到这种计算题。



systematic TAA通过量化模型,对历史数据做分析,找出市场反常因子,比如在size因子上,small size表现好于large size,在style因子上 value 表现好于growth,然后偏离SAA,增加small size、value型资产的配比,通过这样的TAA来获得超额收益,systematic TAA更加强调discipline。


Discretionary是基金经理基于自己对未来趋势的主观判断,进行的偏离SAA的资产配置,比如,预期经济马上要走到周期顶部,那么周期性资产表现会变差,就会降低这类资产的配比,增加国债等无风险资产的配比。Discretionary TAA更加主观。


TAA是在IPS确定的资产配置range里上下浮动,而不能derivate from the IPS asset class upper and lower limits,即使偏离上下区间能产生超额收益,也不可以这样做。


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