NO.PZ2018062003000208
问题如下：
Nick and Joy are two dealers in America. A research report produced by Nick includes the following exhibit:
If Joy is quoting the USD/GBP cross-rate at 1.4210. Which of the following options is most accurate of the arbitrage profit?
选项：
A.
USD 32,000 per million GBP traded.
B.
GBP 29,000 per million USD traded.
C.
USD 29,000 per million GBP traded.
解释：
C is correct.
The USD/GBP cross-rate from Nick is (8.8318/6.3449) = 1.3920, which is lower than 1.4210 . To earn an arbitrage profit, a currency trader would buy GBP use 1.3920 and sell GBP use 1.4210, So the profit would be
GBP 1,000,000 × (1.4210 – 1.3920) = USD 29,000
考点： cross-rate
解析：
美元/英镑汇率为(8.8318/6.3449)= 1.3920，低于1.4210。为了获得套利利润，货币交易员会以1.3920的价格买进英镑，以1.4210卖出英镑，所以利润是
1000000英镑*(1.4210 - 1.3920)= 29000美元
汇率差值✖️英镑得到美元💲不能理解，请解释一下为什么✖️英镑？
