mid 发表于 2010-3-22 09:59
really? i thought capm needs equilibrium, which implies arbitrage free.

mid 发表于 2010-3-23 11:25
9# irvingy

I'm not challenging you on this one. I'm asking
Maybe I should say excuse me, associate prof.
I just wonder how can we call a market in equilibrium if there are opportunities for arbitrage, intuitively.

But I was challenging you on the post of  bull  spread.

Yeah, I'm 小学生 now.