鑫 · 2022年11月02日
NO.PZ2021071301000002
问题如下：
One reason for the downward sloping aggregate demand curve is that lower prices imply real exchange rates:
选项：
A.devaluation, which makes domestic goods cheaper, leads to a higher level of net exports.
解释：
A is correct.
较低的价格水平导致较弱的实际汇率，使国内产品对其他国家的人来说更便宜，进口竞争力下降，导致净出口水平上升。
根据Real D/F = Nominal D/F *P F / P D ，国内物价水平P D低时，实际汇率不应该增加吗？
笛子_品职助教 · 2022年11月03日
嗨，努力学习的PZer你好：
根据Real D/F = Nominal D/F *P F / P D ，国内物价水平P D低时，实际汇率不应该增加吗？
Hello，亲爱的同学！
公式里的Real D/F表示外币的实际汇率，而本题问的是本币的实际汇率。所以不一样的了。
我们看本题：
One reason for the downward sloping aggregate demand curve is that lower prices imply real exchange rates:
这里虽然没指明 real exchange rates是哪个国家的，但是没有特别指明，一般就是指本币实际汇率。
我们看汇率表达式，d/f，F是base currency，因此FX real（d/f）是表示外币（f ）的实际汇率。
在本国物价下跌时，也就是CPId下跌的时候，FX real（d/f）增加，也就是外币的实际汇率增加，对应本币的实际汇率下降。
因此A选项里的devaluation是正确的。
同学在使用这个公式的时候，要特别注意有一个转换呦。
----------------------------------------------虽然现在很辛苦，但努力过的感觉真的很好，加油！
NO.PZ2021071301000002 问题如下 One reason for the wnwarsloping aggregate mancurve is thlower prices imply reexchange rates: A.valuation, whimakes mestic goo cheaper, lea to a higher level of net exports. B.appreciation，whimakes mestic goo more expensive, leang to a higher level of net exports. C.appreciation，whimake the country's imports anexports less competitive, leang to a cline in net exports. A is correct. Lower prices leto a lower reexchange rate, whimakes mestic goo cheaper for people in other countries, leang to a higher level of net exports.较低的价格水平导致较弱的实际汇率，使国内产品对其他国家的人来说更便宜，进口竞争力下降，导致净出口水平上升。 RT
NO.PZ2021071301000002 问题如下 One reason for the wnwarsloping aggregate mancurve is thlower prices imply reexchange rates: A.valuation, whimakes mestic goo cheaper, lea to a higher level of net exports. B.appreciation，whimakes mestic goo more expensive, leang to a higher level of net exports. C.appreciation，whimake the country's imports anexports less competitive, leang to a cline in net exports. A is correct. Lower prices leto a lower reexchange rate, whimakes mestic goo cheaper for people in other countries, leang to a higher level of net exports.较低的价格水平导致较弱的实际汇率，使国内产品对其他国家的人来说更便宜，进口竞争力下降，导致净出口水平上升。 为啥呀，总需求不是跟汇率呈反向关系吗
NO.PZ2021071301000002 问题如下 One reason for the wnwarsloping aggregate mancurve is thlower prices imply reexchange rates: A.valuation, whimakes mestic goo cheaper, lea to a higher level of net exports. B.appreciation，whimakes mestic goo more expensive, leang to a higher level of net exports. C.appreciation，whimake the country's imports anexports less competitive, leang to a cline in net exports. A is correct. Lower prices leto a lower reexchange rate, whimakes mestic goo cheaper for people in other countries, leang to a higher level of net exports.较低的价格水平导致较弱的实际汇率，使国内产品对其他国家的人来说更便宜，进口竞争力下降，导致净出口水平上升。 老师，我想问下，这里说的是wnwarslope， 不是说明g下降了，那么（x-m)不是应该变小吗。
NO.PZ2021071301000002 问题如下 One reason for the wnwarsloping aggregate mancurve is thlower prices imply reexchange rates: A.valuation, whimakes mestic goo cheaper, lea to a higher level of net exports. B.appreciation，whimakes mestic goo more expensive, leang to a higher level of net exports. C.appreciation，whimake the country's imports anexports less competitive, leang to a cline in net exports. A is correct. Lower prices leto a lower reexchange rate, whimakes mestic goo cheaper for people in other countries, leang to a higher level of net exports.较低的价格水平导致较弱的实际汇率，使国内产品对其他国家的人来说更便宜，进口竞争力下降，导致净出口水平上升。 价格水平低为什么不是汇率上升导致的？
