NO.PZ2022122701000020
问题如下：
In preparation for the attribution analysis, Weiss collects the country weights and returns for the Fund and the benchmark for the last year. He proceeds to evaluate the impact of allocation and selection decisions as detailed in Exhibit 1.
Calculate the allocation, selection and interaction effects for both Japan and the Fund. Discuss briefly the allocation and selection effects for each of the individual countries and for the overall Fund.
选项：
解释：
Parameter calculations
Allocation = (wi–Wi)*(Bi–B)
Selection = Wi *(Ri–Bi)
Interaction = (wi–Wi)* (Ri–Bi)
For Japan
Allocation = (7% – 5%) * (3.2% – 12%) = –0.18%
Selection = 5% * (1.3% – 3.2%) = –0.10%
Interaction = (7% – 5%) * (1.3% – 3.2%) = –0.04%.
For the Fund:
Incorporating the allocation, selection and interaction effects of Japan (calculated above) with the other countries’ data given in Exhibit 1, we obtain:
Allocation = –2.02%
Selection = 1.96%
Interaction = 0.07%
At the overall Fund level, selection and interaction outperformance was nullified by allocation underperformance. The Fund did not experience excess return compared to the benchmark.
这题为什么要用BF模型计算呢，如果用BHB模型可以吗？
谢谢
