NO.PZ2016062402000029
问题如下:
Consider that a stock price S that follows a geometric Brownian motion , with b strictly positive. Which of the following statements is false?
选项:
A.
If the drift a is positive, the price one year from now will be above today’s price.
B.
The instantaneous rate of return on the stock follows a normal distribution.
C.
The stock price S follows a lognormal distribution.
D.
This model does not impose mean reversion.
解释:
All the statements are correct except A, which is too strong. The expected price is higher than today’s price but certainly not the price in all states of the world.
请问是哪个章节内容?经典题有吗