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jackkk812 · 2024年08月03日

如题

  1. CFA I
  2. Economics Analysis

NO.PZ2023061903000027

问题如下：

Q. The JPY/AUD spot exchange rate is 82.42, the Japanese yen interest rate is 0.15 percent, and the Australian dollar interest rate is 4.95 percent. If the interest rates are quoted on the basis of a 360-day year, the 90-day forward points in JPY/AUD would be closest to:

选项：

A.–377.0.
B.–97.7. C.98.9.

解释：

B is correct. The forward exchange rate is given by:

FJPYAUD=SJPYAUD1+rJPYτ1+rAUDτ=82.421+0.0015903601+0.049590360=82.42×0.98815=81.443.

The forward points are as follows:

100 × (F × S) = 100 × (81.443 – 82.42) = 100 × (–0.977) = –97.7.

Because the spot exchange rate is quoted with two decimal places, the forward points are scaled by 100.

这道题的解答是不是漏了个括号呀？应该是1+0.0015括号的四分之一次方吧？我用计算器算出来有误差



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2 个答案

笛子_品职助教 · 2024年08月06日

嗨，从没放弃的小努力你好：


我算了下加括号和不加括号误差竟然有0.4几那么多，究竟什么时候要加括号什么时候不加呢？计算一年以内的利率不加是嘛，因为不存在收益的reinvestment？

同学理解正确，一年以内的利率，通常是单利计算，不存在收益的reinvestment，不加括号。

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虽然现在很辛苦，但努力过的感觉真的很好，加油！

笛子_品职助教 · 2024年08月04日

嗨，从没放弃的小努力你好：


这道题的解答是不是漏了个括号呀？应该是1+0.0015括号的四分之一次方吧？我用计算器算出来有误差

Hello，亲爱的同学~

题目的解析是正确的。

单利的计算，是不需要加括号的。

由于小数点精度的问题，计算误差是很常见的，选择题只需要选择与结果最近的答案就可以。


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努力的时光都是限量版，加油！

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NO.PZ2023061903000027 问题如下 Q. The JPY/AUspot exchange rate is 82.42, the Japanese yen interest rate is 0.15 percent, anthe Australillinterest rate is 4.95 percent. If the interest rates are quoteon the basis of a 360-y year, the 90-y forwarpoints in JPY/AUwoulclosest to: A.–377.0. B.–97.7. C.98.9. B is correct. The forwarexchange rate is given by:FJPYAUSJPYAU+rJPYτ1+rAU=82.421+0.0015903601+0.049590360=82.42×0.98815=81.443.The forwarpoints are follows:100 × (F × S) = 100 × (81.443 – 82.42) = 100 × (–0.977) = –97.7.Because the spot exchange rate is quotewith two cimplaces, the forwarpoints are scale100. forwarpoints 定义是什么，forwarpoints = forwarpri- spot price这个知识点在哪里呢？

2024-08-15 22:38 1 · 回答

NO.PZ2023061903000027 问题如下 Q. The JPY/AUspot exchange rate is 82.42, the Japanese yen interest rate is 0.15 percent, anthe Australillinterest rate is 4.95 percent. If the interest rates are quoteon the basis of a 360-y year, the 90-y forwarpoints in JPY/AUwoulclosest to: A.–377.0. B.–97.7. C.98.9. B is correct. The forwarexchange rate is given by:FJPYAUSJPYAU+rJPYτ1+rAU=82.421+0.0015903601+0.049590360=82.42×0.98815=81.443.The forwarpoints are follows:100 × (F × S) = 100 × (81.443 – 82.42) = 100 × (–0.977) = –97.7.Because the spot exchange rate is quotewith two cimplaces, the forwarpoints are scale100. Because the spot exchange rate is quotewith two cimplaces, the forwarpoints are scale100.为什么？

2024-05-30 20:30 1 · 回答

NO.PZ2023061903000027 问题如下 Q. The JPY/AUspot exchange rate is 82.42, the Japanese yen interest rate is 0.15 percent, anthe Australillinterest rate is 4.95 percent. If the interest rates are quoteon the basis of a 360-y year, the 90-y forwarpoints in JPY/AUwoulclosest to: A.–377.0. B.–97.7. C.98.9. B is correct. The forwarexchange rate is given by:FJPYAUSJPYAU+rJPYτ1+rAU=82.421+0.0015903601+0.049590360=82.42×0.98815=81.443.The forwarpoints are follows:100 × (F × S) = 100 × (81.443 – 82.42) = 100 × (–0.977) = –97.7.Because the spot exchange rate is quotewith two cimplaces, the forwarpoints are scale100. 解析里的这句话是什么意思？Because the spot exchange rate is quotewith two cimplaces, the forwarpoints are scale100.为什么那个第一步算出来的81.443不是正确答案呢？题目不就是让求the 90-y forwarpoints in JPY/AU吗？

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2024-03-13 21:58 2 · 回答