请问一下,在下面这句话中的ex post是什么意思,在公式中是如何表现出来的?In a related paper (Aivazian et al., 2005b), they show that after controlling for leverage, debt maturity also has a negative impact upon investment ex post.
另附Aivazian et al., 2005b中的公式
[此贴子已经被作者于2009-4-11 10:41:35编辑过]