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卷帘门门主耳东大哥 · 2019年11月13日

问一道题:NO.PZ2016082404000023

问题如下:

Albert Henri is the fixed income manager of a large Canadian pension fund. The present value of the pension fund’s portfolio of assets is CAD 4 billion while the expected present value of the fund5s liabilities is CAD 5 billion. The respective modified durations are 8.254 and 6.825 years. The fund currently has an actuarial deficit (assets < liabilities) and Albert must avoid widening this gap. There are currently two scenarios for the yield curve: The first scenario is an upward shift of 25bp, with the second scenario a downward shift of 25bp. The most liquid interest rate futures contract has a present value of CAD 68,336 and a duration of 2.1468 years. Analyzing both scenarios separately, what should Albert Henri do to avoid widening the pension fund gap? Choose the best option.

选项:

First Scenario       
Second Scenario
A.
Do nothing
Buy 7,559 contracts
B.
Do nothing
Sell 7,559 contracts.
C.
Buy 7,559 contracts
Do nothing.
D.
Do nothing
Do nothing.

解释:

ANSWER: A

We first have to compute the dollar duration of assets and liabilities, which gives, in millions,4,000×8.254=33,016   and  5,000×6.825=34,125, respectively. Because the DD of liabilities exceeds that of assets, a decrease in rates will increase the liabilities more than the assets, leading to a worsening deficit. Albert needs to buy interest rate futures as an offset. The number of contracts is (34,125-33,016)/(68,336×2.1468/1,000,000) =7,559.

还是没有理解这道题的意思?可否有一个更详细的解释呢?

1 个答案

orange品职答疑助手 · 2019年11月14日

同学你好,这题的宗旨就是消除利率变化对财务赤字的不利影响(Asset-liability不能再扩大了)。用简单的假设利率变化1%,来产生以上变化的等式,计算上比较方便。

首先要看利率如何变化会使赤字变大,那就看利率增加或减少1%,A - L这个差会变大还是变小。那么直接假设利率减小1%,得出asset增加4000*8.254=33016million,liability增加5000*6.825=34125。这时候A -L会变大1109(不好)。反之利率增加1%是好的,也就是利率增加是不用有应对措施。

怕利率下降,要对冲利率下降带来的风险,所以他应该进入利率期货合约的多头。因为对于利率期货合约而言,当利率下降的时候,他是赚钱

最后用公式算出合约数即可。


利率变化的情景只是提供了升降的情景,25bp这个数字没用。

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