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关于Level I 2015 Notes Book 2 第238页 第二个Example的小疑问。
如题,在Level I 2015 Notes Book 2 第238页,有一个Example如下:
The spot ABE/DUB exchange rate is 4.5671, the 90-day riskless ABE rate is 5%, and the 90-day riskless DUB rate is 3%. What is the 90-day forward exchange rate that will prevent arbitrage profits?
它的解是:
forward=4.5671[(1+0.05/4) / (1+0.03/4)]=4.5898.
但是题目是给出90-day的rate,要求90-day的forward exchange rate,它为什么要除以4呢?? 难道不应该是给出一年的rate,要求90-day的rate,这才要除以4吗?? 用90-day的rate除以4再算这是什么含义呢??
望大家能够答疑解惑~~
感激不尽! |
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