NO.PZ2016031201000042 问题如下 The value of a Europeput option ceither rectly or inversely relateto the: A.exercise price. B.time to expiration. C.volatility of the unrlying. B is correct.The value of a Europeput option ceither rectly or r inversely relateto time to expiration. The reeffeis more common, but the inverse effecprevail the longer the time to expiration, the higher the risk-free rate, anthe eper in the- money is the put. The value of a Europeput option is rectly relateto the exercise prianthe volatility of the unrlying. 中文解析欧式看跌期权的价值跟Time to expiration的关系可能是positive,也有可能是negative的。因为看跌期权的收益是有限的(股价最低跌到0),当在到期之前期权是ep in the money,此时又不能提前行权,只能焦急等待赶快到期行权。此时距离到期时间越长,对投资者越不利。 也就是v=max【(X/(1+rf)-St),0】来考虑?
请问题目里问either rectly or inversely,里说either rectly or inrectly,inversely和inrectly意思不同,是写错了?里第二句reeffect的意思是“直接的影响”,可以是直接的“正相关或负相关”影响,根据它想表达的意思,在这里应该把reeffect改成positive correlation effect吧?还是说之后做题看到“reeffect”可以理解为“正相关”的意思?谢谢!
请问这道题是什么意思?这三个不都是正相关的么?
这道题能一下答案吗?记得课上说的是与time to expiration 反向相关,怎么既正相关又反相关呢?