第15题，为什么要首先换算成EAR之后计算，其他题目同样给的是stated annual rate却不用换算成EAR呢？

第28题，为什么investment 20,000不用求FV？

12题为什么选c 上课没讲啊

Disassociate from this issue 不行吗？

老师，请问第13题计算debt to asset ratio，为什么在这里asset没有使用期初加期末的平均值啊？

（1-BEY/2）平方-1=BAR?还是EAR？

这道题的答案a不是股东和债权人之间的冲突吗？

老师，请问operating leverage是什么呢？

If central banks want to stimulate growth in periods of deflation, which of the following is a limitation on its ability? A The fact that interest rates have a minimum value (0%). B The interaction of monetary and fiscal policy. C Ricardian equivalence. 老师，A选项日本的利率不是能小于0吗？ B，央行也无法干预财政政策吧？C选项能解释一下吗？

A development country maintains a fixed value for its currency relative to the U.S. dollar. It is experiencing a decline in its economic activity, and its inflation rate falls below the Level in the United States. If the developing country wants to maintain the fixed exchange rate target, its A Money supply will contract. B Short-term interest rates will fall. C Foreign exchange reserves will decrease. 老师，买美元那本国的货币不是减少吗，然而又说要货币宽松，有矛盾吧？