第29 当无法获得market value 不是可以用book value到的吗

19题 和21题谢谢老师

老师您好，请解释一下第60题吧

老师为啥文字部分说的隐性成本是机会成本，而图形部分说的隐性成本和显性成本之和为机会成本？

请解释下为什么选A

请问这道题事实错误，不就是属于unture statement吗？就是老师讲的“胡说八道”。

老师，请问这里的decrease required reserves是什么意思呀。准备金减少了，银行能贷出去的钱多了，不应该是扩张性政策吗，这里为啥是紧缩性政策呢？

Which of the following statements about duration is most accurate? A Effective duration accounts for changes in a bond’s cash flows resulting from interest rate changes. B Modified duration is the most appropriate measure of interest rate sensitivity for bonds with embedded options. C Effective duration is calculated from past price changes in response to changes in yield. Approximate modified duration 和effective duration课上听到说是事后观察得到的数据，所以我觉得C也是对的吧

T分布的自由度及它的参量只有一个是什么意思呀？

老师你好，原版书109页22-23题，不明白。具体问题如下： 22题选项A错在哪里？错在investment returns 还是错在measure? 23题选项A为什么不对？94页有段话：Tokyo Price Index (TOPIX) and the S&P 500 often serve as proxies for the market portfolio in Japan and the United States, respectively, and are used for measuring and modeling systematic risk and market returns.这句话不是说指数可以用来measuring systematic risk 吗？