老师 押题组合第5题和百题组合Case2的第5题 看不明白了 押题里说未来价格和消费效用正相关的是bad consumption hedge，百题题干里说未来价格和消费负相关也是bad consumption hedge 到底是哪个错了？？

老师您能不能帮我分别解释callable bond和putable bond还有convertible bond的，one side down duration 和one side up duration的比较？

老师您能不能帮我分别解释callable bond和putable bond还有convertible bond的，one side down duration 和one side up duration的比较？

这个图中 加入有相关性的滞后项作为变量 这个操作的用途是什么 能不能举个例子 我可能之前对这块内容也是没有理解 谢谢

什么是risk premium for risk of credit loss

请问显著性水平为5%的T-test，在查t分布表时，是按照0.05查，还是按照0.025查？F检验呢？

Q. Which of the following would Messer most likely conclude from the implied volatility data in Exhibit 2 if he excludes the effects of moneyness and time to expiration? Using out-of-the-money options to hedge is more expensive than establishing a long position with out-of-the-money options. Using out-of-the-money options to establish a long position is more expensive than establishing a short position using out-of-the-money options. Using out-of-the-money options to establish either long or short positions is more expensive than using at-the-money options. mockBmorning卷48题，请老师讲解下，没有思路。

reading36最后一个case的第33题，老师的讲解没有听懂。预期的股利是0.7，那threshold dividend 0.5是什么股利？conversion price是在合约里就签订好了的啊，还能调整？还是这里的conversion price实际上是market conversion price？

Q. Assuming rates change as described by Akron and based on Exhibit 3, the impact on the portfolio as outlined in Module 6 would be most likely be a loss in value from changes in: level and a loss from changes in steepness. level and a gain from changes in steepness. steepness and a gain from changes in curvature. 老师讲解下这道题怎么做，题干信息在截图，没有做题思路。

您好，2019mockB36题，这道题是为什么？