问题如下:
If the return process for 100 firms is a four-factor market model, then the number of parameters to be estimated is
选项:
A.6
100
C.286
D.406
解释:
D is correct. 406.
The number of parameters to be estimated is
MN + M(M - 1 )/2 for M common factors and N firms.
这一题和上一题问80个变量有几个COV的可以直接记公式吗?