NO.PZ2023040401000039
问题如下：
Which of the following statements about replication is most correct?
选项：
A.
A risk-free asset can be created from a long position in the underlying asset and a short position in a derivative.
B.
A long position in a derivative can be created from a long position in the underlying asset and a long position in a risk-free asset.
C.
A long position in the underlying asset can be created from a short position in a derivative and a short position in a risk-free asset.
解释：
A is correct. Long the underlying asset + short derivative = risk free asset。
Lond derivative = long the underlying asset+ short risk-free asset, B is not correct.
long the underlying asset = long derivative + long risk-free asset, C is not correct.
老师可以解释一下什么是short derivative吗 讲义哪里有写呢