Channel stuffing到底是提前确认收入还是延迟确认收入呢？

92分40秒 讲没有套利机会的市场定价才有效，但后面练习题又写限制套利限制定价公允性。说法不一样 ？

老师，能否详细解释一下Mosaic Theory?The analyst may use significant conclusions derived from the analysis of public and nonmaterial nonpublic information as the basis for investment recommendations and decisions even if those conclusions would have been material inside information had they been communicated directly to the analyst by a company. Under the “mosaic theory,” financial analysts are free to act on this collection, or mosaic, of information without risking violation. 这句话一直不太理解，什么叫if it had been communicated directly with analysts?

还有这个institutional block 是什么意思？

请问这个report type (premium level service is okay上面)怎么理解？

老师，为什么这题金融计算器算出的variance是0.88呀？，就是按照x0到x5分别等于0.085…一直到-0.095按的呀，这样为啥结果不对呀

老师 这个一阶导怎么求啊

视频30题（我自己版本22）怎么看出来考的是efficient frontier的呢？只说了optimal for one investor

这道题直接折旧计算没懂，为什么是20%

covariance是什么意思呢，她和correlation的关系是啥？