第2问，option定价的计算中，都是按照单利对r进行去年化吗？换句话说，每一期的option_price向前折算时分母是1+r*月数/12，而不是（1+r）^（月数/12）

C在说啥

这个广义最小二乘法具体是怎么修正ARCH的？

第二题，怎么判断要求的g还是G呀

E第6题，EPS=ROE × BVPS，可ROE的分母是全部的权益，BVPS的分子为什么是去掉优先级的权益呢

原版书module3的EXAMPLE 3 Classification of Regulators ，1. The media devotes considerable coverage to a regulatory body that has been given autonomy by the government and is empowered by statute. The regulatory body has recently raised the fees charged to the companies it regulates. The regulatory body in question is most likely to be a(n): A. self-regulatory organization. B. government agency. C. independent regulator. Solution C is correct. Independent regulators are given authority by the government and are empowered by statute. Unlike government agencies, they are funded by fees that they collect from the firms they regulate. 实在看不出来为什么答案选C；从题目条件看选SRO也可以啊。老师刚讲了，SRO和独立机构的区别是一个私立，一个公立机构。这道题怎么判断的呀？他们均为政府认可和授权，包括执行权力。

从第6题来看，ROE公式的分母是不含优先股的所有者权益嘛？

为什么MSE和Sb1（标准误）有相关性呢？是从定义还是公式角度去理解他们两的关系呢？ -视频39分32秒处什么

原版书module2的EXAMPLE 11 Comparative Statics and Transitional Growth in the Neoclassical Model 和EXAMPLE 12 Neoclassical vs. Endogenous Growth Models完全看不懂，涉及到一些新知识点的计算，基础课材料没得相关知识点知识，老师也没讲。是可以不用掌握，机考肯定不考吗？谢谢

请问为什么X1和X2不相关的时候，不会出现异方差呢？