Level 2- Mock 26-No.57题 identity, factors, number, states, wrong

yospaghetti

答案说：The APT model does NOT specify the identity of the factors NOR the number of factors.

In my mind, the APT adopts macroeconomic multifactors, why the answer states so? Is the answer wrong?

Look for your kind explainations. Thanks.

apf_elaineliu

这道题目是在考APT模型的假设。 assumption：a factor model describes asset returns.这个假设说明在APT模型里，将哪些风险因子包含进去，以及风险因子的数量都没有特别说明，这是根据每一种证券自己的性质决定的，因此这个模型在实际中较难应用。