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GS · 2023年05月07日

如下

  1. CFA I
  2. Economics Analysis

NO.PZ2018062003000206

问题如下：

Assume that the exchange rate between CAD and USD has decreased to 1.5800. If the USD has depreciated by 5% against the price currency, which of the initial exchange rate is the most accurate between CAD and USD?

选项：

A.

1.5048.

B.

1.6632.

C.

0.6646.

解释：

B is correct.

1.5800/initial rate = 1-0.05

initial rate=1.58/0.95 = 1.6632.

考点： Percentage Change in A Currency

解析:

1.5800/初始汇率= 1-0.05

初始汇率=1.58/0.95 = 1.6632.

请问下列步骤错在哪里？

已知：spot rate 1.58 CAD/USD

可得：spot rate 1/1.58 USD/CAD 即 0.6239 USD/CAD

由题：USD has depreciated by 5%

所以：previously 0.6239/0.95 = 0.6662 USD/CAD 即 1.5011 CAD/USD

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2 个答案

笛子_品职助教 · 2023年05月10日

嗨，努力学习的PZer你好：


同学记住一个规律哈：我们说一个货币升值贬值，都要把这个货币放到base currency的位置去考虑。 可以再帮忙进一步解释一下吗？谢谢


可以把base currency理解为商品，例如一个苹果。

price currency是计价货币，给这个商品计价。


比如3RMB/苹果。苹果涨价，也就是汇率上涨，从原来的3RMB/苹果，涨到4RMB/苹果。

因此，6RMB/USD ，美元升值，就是汇率上涨，从原来的7RMB/USD，涨到7RMB/USD

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努力的时光都是限量版，加油！

笛子_品职助教 · 2023年05月08日

嗨，爱思考的PZer你好：


请问下列步骤错在哪里？


不可以这么算哦。

我们说USD has depreciated by 5%，这个USD应该在汇率表达式里，处于Base currency的位置。

而 0.6239是USD/CAD，USD处于price currency的位置，而非base currency的位置。

因此不可以这么计算。


同学记住一个规律哈：我们说一个货币升值贬值，都要把这个货币放到base currency的位置去考虑。

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努力的时光都是限量版，加油！

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