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皓月 · 2024年10月03日

这题我错了好几遍

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NO.PZ202206210200000106

问题如下:

Is Browne’s proposed investment objective for the Tucker pension plan most likely appropriate?

选项:

A.Yes B.No, the secondary objectives are incompatible. C.No, the proposed required return is inappropriate.

解释:

Solution

C is correct. The proposed required return is inappropriate. For any defined benefit plan, the required return should take into account the anticipated change in future liability cash flows and the change in valuation of those cash flows. The cash flows are affected by changes in active employee salaries, changes in active employee longevity, and the rate of inflation (retired employees). The valuation of liability cash flows will change as market interest rates change. In general, the required return for plan assets should exceed the discount rate on plan liabilities. The required return specified in the proposal does not reflect appropriate market interest rates used to discount liability cash flows (investment-grade long-term bond yields) and double counts inflation, which is a primary factor in active employee salary increases.

A is incorrect. The proposed required return is inappropriate.

B is incorrect. The secondary objectives are not incompatible. It is common for a plan that is currently overfunded to want to maintain status quo, and it is common to do so by engaging in ways of minimizing the volatility of the surplus. Most funds also act to minimize the likelihood the plan sponsor would have to increase its contributions; indeed, many will take on additional asset risk to increase plan asset expected returns and decrease sponsor expected contributions. Although these objectives are compatible, they will have to be balanced against one another.

我不知道它在问啥,解析我也没看懂,知识点是什么啊,然后我感觉是英语问题。。。

1 个答案
已采纳答案

Lucky_品职助教 · 2024年10月08日

嗨,努力学习的PZer你好:


同学你好:


这道题是问Browne建议的是不是合适。


这句话第一个错误是:

Growth rate in salaries,已经是一个名义值了。在计算PBO(DB Liabilities)时,工资的增长率是已经考虑到Inflation了。那这样的话,题干说资产的Required return等于:Inflation + growth rate in salaries,那显然,这里把Inflation计算了两次,肯定是错误的。


第二个错误是这里计算资产Required return时,出发点错误了。正确的是:Fully-funded的DB Fund,在计算Asset required return时,应该以负债的Discount rate为锚,资产的收益率始终盯住负债的折现率即可。那这样的话,Fully-funded时,Required return只需等于负债的折现率即可。选择C。


B选项说第二个目标是矛盾的,其实退休金计划想维持overfunded状态是很正常的,并且会把减少contribution作为目标,这些目标都是相容的。

DB Fund,雇主和员工只约定员工退休后每个月拿确定的退休金(Benefit),所以是养老金将来的Cash outflow是定死的。

但是DB Fund并没有约定员工在职时,雇主需要交多少Contribution,也就是说,DB Fund只约定公司给退休员工发确定数额的退休金,至于员工在职时公司交了多少Contribution是无所谓的。并没有强制公司一定要交Contribution。

那这样的话,实际上意思就是,如果我们Pension plan asset基金运作的好的话,仅仅靠Asset的本金和投资收益就能Cover住养老金负债的话,雇主每年都不用交Contribution也可以运行下去。因此overfunded是好的,第二个目标是相容的,B选项错误。


这道题是官网题中的case,出得不是很好。

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努力的时光都是限量版,加油!

皓月 · 2024年10月08日

既然出的不好我就放心了,哈哈哈哈

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