芹同学2021-12-21 14:27:09
请教一下R10 25题?
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开开2021-12-21 15:07:28
同学你好,题目问foreign currency 对total return的贡献。
账户的total return R_DC = (1+R_FC) (1+R_FX)=R_FC+R_FX+R_FC*R_FX,
foreign currency对B同学账户total return的贡献应该包括R_FX和后面的交叉项R_FC*R_FX
此处因为B的组合有三种货币,其中欧元和日元是外币。我们可以计算出加权平均的R_FC和R_FX
R_FC = (0.50 × 10.0%) + (0.25 × 5.0%) + [0.25 × (–3.0%)] = 5.5%.
R_FX = (0.50 × 0.0%) + (0.25 × 2.0%) + (0.25 × 4.0%) = 1.5%
R_FC*R_FX = [0.50 × (10.0% × 0.0%)] + [0.25 × (5.0% × 2.0%)] + [0.25 × (–3.0% × 4.0%)] = –0.005%,
因此,foreign currency 对total return的贡献 = R_FX +R_FC*R_FX =1.5% -0.005%=1.495%,约等于1.5%
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