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· 2021年03月06日

如果C选项改成“Inflation in Canada is 2% higher than that in USA.”是不是就对了？

  1. CFA I
  2. Economics Analysis

NO.PZ2016010801000105

问题如下：

Last year, the nominal exchange rate for CAD/USD was 1.40. This year, the real exchange rate has decreased by 2%. Which of the following statement is most likely correct?

选项：

A.

One US dollar can exchange for more than 1.4 Canada dollars.

B.

There is a decrease of 2% in purchasing power of USD relative to CAD.

C.

Inflation in Canada is about 2% lower than that in USA.

解释：

B is correct. The real exchange rate is to assess changes in the relative purchasing power of one currency compared with another. The 2% decrease in real exchange rate indicates the 2% depreciation of USD compared to CAD.

考点：实际汇率

解析：实际汇率是用来评估一种货币相对于另一种货币的相对购买力的变化。实际汇率下降2%表明美元对加元贬值2%。所以B选项正确。

此时1单位美元换汇的加拿大的数目就少于1.4单位，A选项不正确。

C的说法不一定，所以也不入选。

根据课上何老师说的real exchange rate计算的那道例题 。Real exchange rate=1.40*(CPI美国/CPI加拿大），因为real exchange rate要下降2%，所以(CPI美国/CPI加拿大）就等于（1-2%)是一个小于1的数，所以判断美国的通胀幅度没有加拿大高，推断“Inflation in Canada is 2% higher than that in USA.”老师，这个思路对吗？谢谢。

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1 个答案

丹丹_品职答疑助手 · 2021年03月07日

嗨，从没放弃的小努力你好：


同学你好，你的思路是对的，但是结论是错的，注意到你的公式中1/（1-2%）-1大于2%。

----------------------------------------------
虽然现在很辛苦，但努力过的感觉真的很好，加油！

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