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shuangzili · 2022年03月09日

请详细解释下A选项。

NO.PZ2016010801000081

问题如下:

Which of the following is least appropriate about Country A, if Country A pegs their currency exchange rate with the dollar?

选项:

A.

Country A should keep their inflation rate equal to USA

B.

Country A should sell dollar reserve if their currency is less valuable.

C.

Pegging exchange rate will decrease the volatility of money supply in Country A.

解释:

C is correct. Pegging exchange rate will increase the volatility of money supply in Country A, as it will has more volatile interest rate to keep inflation rate similar to USA.

考点:Pegging exchange rate

解析:Pegging exchange rate 会增加A国货币供给的波动性,从而使通货膨胀率与美国的通胀率保持一致。A选项不入选。

A国本币贬值的时候,A国政府就应该在外汇市场上买入本币,卖出外汇储备,所以B选项不入选。

但是这种情况下,A国的利率受到货币供给变化的冲击会更加明显,表现也更不稳定。所以C选项入选。

为什么A不选。

另外pegging 一国的汇率属于哪种?a currency board arrangement 吗?还是crawling peg?

2 个答案

笛子_品职助教 · 2022年03月13日

嗨,爱思考的PZer你好:


基础讲义370页

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笛子_品职助教 · 2022年03月09日

嗨,努力学习的PZer你好:


请详细解释下A选项。


盯住美元的固定汇率,哪个不正确。固定汇率下,通胀率和美国的通胀是一致的,所以A选项说法正确。题目要求选错误的,所以不入选。

这是从PPP购买力平价来解释。

购买力平价认为:两个国家的汇率差取决于两个国家的通胀率。高通胀的国家,汇率倾向于贬值。低通胀的国家,汇率倾向于升值。

本题是固定汇率制,汇率既不贬值,也不升值。那么,两个国家的通胀率就不应该有差异。


另外pegging 一国的汇率属于哪种?a currency board arrangement 吗?还是crawling peg?

本题并不涉及pegging 一国的汇率属于哪种的问题。在本题,a currency board arrangement还是crawling peg都可能,不影响解题。


pegging汇率的类型有:currency board arrangement,conventional fixed peg arrangement,Target zone,Crawling peg。

见基础讲义389-391页







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