NO.PZ2016082404000013
问题如下：
Under which scenario is basis risk likely to exist?
选项：
A. A hedge (which was initially matched to the
maturity of the underlying) is lifted before expiration.
B. The correlation of the underlying and the
hedge vehicle is less than one and their volatilities are unequal.
C.
D.
解释：
ANSWER: D
Basis risk occurs if movements in the value of the cash and hedged positions do not offset each other perfectly. This can happen if the instruments are dissimilar or if the correlation is not unity. Even with similar instruments, if the hedge is lifted before the maturity of the underlying, there is some basis risk.
老师，请问C选项什么意思？dissimilar代表的“不同”是指什么呢？
