NO.PZ2024021803000064
问题如下：
In a one-period binomial model, assuming all other factors are constant, what happens to the risk-neutral probability of an upward movement in the asset's price if the up gross return increases?
选项：
A.It decreases. B.It remain the same C.It increases.解释：
When the up gross return in a binomial model increases, the risk-neutral probability of an upward movement decreases.当u上升时，π会下降
if the up gross return increases，up gross return是啥
