请问老师，bootstrip这个方法怎么在实践中应用，比如已经隔夜par rate如何推导出discount factor和spot rate，谢谢！

该视频中最后的一道例题计算DD时用的价格为什么不是98.125？

老师好，视频中关于关税对社会福利分大国和小国的影响，实在没听懂，可以麻烦再解释下吗？

请问老师，par rate，spot rate，YTM，discount factor有什么关系，他们之间怎么计算推导？

请问本题中下降100bp为什么没用上

Erin Chou is reviewing a profitable investment project that has a conventional cash flow pattern. If the cash flows for the project, initial outlay, and future after-tax cash flows all double, Chou would predict that IRR would: a. increase and the NPV would increase b. stay the same and the NPV would increase c. stay the same and the NPV would stay the same 没太懂为什么选b

An investment of $20000 will create a perpetual after-tax cash flow of $2000. The required rate of return is 8 percent. What is the investment's profitability index? A. 1.08 B. 1.16 C 1.25 这道题我看了答案解析，求pv时用的是2000/0.08 而不是2000/（1+0.08）是为什么呢？pv不是等于future cash flow/(1+r)^t，这里的分母为什么没有+1呢？

老师你好，原版书19页的example，选项B为什么对？B：some ethical behavior may be illegal.一些符合道德的行为可能不合法？不合法一定不道德吧？Civil disobedience is an example of what may be illegal behavior that some consider to be ethical.这句话是什么意思？

最下面的e的4.95%次方是什么意思，e指什么？怎么计算？

sinking fund 和sinking fund reserve有什么区别吗