NO.PZ2019010402000055
问题如下:
Which of the following statements about binomial models is most correct?
选项:
A.the discount rate is risk adjusted
B.the probability of an up move is objectively determined, and not based on investor's views
C.the calculation uses the true probabilities.
解释:
B is correct.
使用二叉树计算期权价值时,使用的折现率是未经风险调整的无风险利率,A错。
二叉树中向上或者向下的概率是客观确定的,不基于投资者的观点,是风险中性概率,而不是真实存在的概率,因此B对,C错。
B怎么理解?