maxwang1990 发表于 2013-9-7 22:51
是ai,不是eit

michaelyu886 发表于 2013-9-12 20:23
那请问rit和rmt是实际的收益率还是要减去无风险收益率？谢谢

maxwang1990 发表于 2013-9-13 00:09
Yes, they are excess returns, so risk-free rate should be subtracted from the stock returns and ma ...