请问,这个题是出现在performance evaluation课后题中,理解倒是没问题,只是这个题的考点是什么呀?是Benchmark常见类型里的factor model?或者fundamental factor model的attribution analysis呢?结论中的unexpected return,0.18%归为value added investmemt skill是不是就是fundamental factor model里的specific (unexplained) 呢?也就是说,在看fundamental factor model时,我直接可以认为specific (unexplained) 就是manager’s skill?多谢多谢!