这道题是不是不太严谨，因为justifyed PE有leading和trailing的，这道题的题干并没有说清楚，只是通过给出的justifyed PE是7.5才能反推要求求解的是leading PE对吗？

Which of the following chronic deficit conditions is least alarming to the deficit country’s creditors? A High consumption. B High private investment. C High government spending 不明白这个题 为什么从支出法的角度来考虑呢？并且让NX下降呢

For importing countries, which of the following trade restrictions is likely to result in the greatest welfare loss? A A tariff. B A voluntary export restraint. C An import quota. 不明白这个题为什么是b

Based on Heckscher-Ohlin model, which of the following is correct when trade opens: A The abundant factor gains relative to the scarce factor in each country. B The scarce factor gains relative to the abundant factor in each country. C Income is redistributed between countries but not within each country. C选项为什么不对

Which of the following condition provides a country with most gains based on the Ricardian trade model? A It produces all products while its trade partner specializes in one good. B The terms of trade are closer to its partner's autarkic prices than to its autarkic prices. C The terms of trade are closer to its autarkic prices than to its partner's autarkic prices. 不明白这个题

Supposing that a country has a persistent trade surplus and is being pressured to let its currency appreciate. If currency appreciation is to be effective in reducing the trade surplus, which of the following best describes the adjustment that must occur? A Domestic investment must decline relative to saving. B Global capital flows must shift toward the domestic market. C Foreigners must increase investment relative to saving. 不明白B选项

复制的意义在于，我们利用两种不同的金融产品复合得到另外一种金融产品的收益状况（比如 asset derivative=risk free rate）。而组合的构成成本跟另一种金融产品的成本相比是否存在差异，如果有差异，我们就可以通过买低卖高获得收益，可以结合套利的概念来理解。 那这个题目就是说如果收益相同，那这两种方式的成本也应该是一样的，如果不一样，那它们的定价就是有问题的

老师好，请问垫付的股利不是应该还给broker吗？为什么这里算作投资收益？

B是怎么直接衡量的？？AC为什么不能衡量了？？简直一窍不通。

e是永远固定的，连续复利计算时要用到e；利率和期数不是固定的，而是题目给定的。老师，不太明白，请问连续复利公式里的e代表什么，固定值是多少，谢谢