问题如下图:
选项:
A.
B.
C.
D.
解释:
老师,“ln(S2/S1)表示的是连续复利情况下的股价的收益率”这个能再仔细说下吗?
NO.PZ2016062402000028问题如下In the geometric Brown motion process for a variable S,I. S is normally stributeII. n(S) is normally stributeIII. /S is normally stributeIV. S is lognormally stributeI only B.II,III, anIVIV only Ill anIV Both /S/S/S or n(S)n{(S)}n(S) are normally stribute a result, S is lognormally stribute The only incorreanswer is I.讲义里没找到能不能讲义截图看一下
请问,II是对数收益率,III是简单收益率,是么?III为什么正确?
老师你好,II可以详细一下是什么意思吗,还有II和III有什么区别吗
variable s不应该是正数吗?