During 2009, the following events occurred at a company. The company: 1. Purchased a key customers management service for $120,000, which is expected to provide equal annual benefits for the next 4 years. 2. Recorded $200,000 of goodwill in the acquisition of a subsidiary. It is estimated that the acquisition would provide substantial benefits for the company for at least the next 10 years. 3. Raise a donation in products and services to the community. The donation enhanced the company's reputation substantially and would likely be worth at least $100,000 annually over the next 5 years. Based on these events, the amortization expense that the company should report in 2010 is closest to: 老师您好，这个题没有视频解析，麻烦给我解答下详细的分析计算过程

老师 这道题目的答案讲解第二行的公式为什么是V_u？with tax的情况下，ppt中相应的公式是图三中蓝色笔公式V_L？为什么不一样呀？

你好，老师 关于公式后面，因为欠税务局的多了，现在交的少了，就+△DTL；相反，就是-△DTA。是怎么解释的呢？这块没有理解。 谢谢~

您好，请问为什么outlier对F-test影响如此巨大（一元回归所以对t-test也是如此？）？对其他的影响比较小呢？

请问老师 本币贬值不是应该会使得出口增加从而增加经常账户流入吗？

老师，你好，课后题中有一道题是：During a recession, the slope of the yield curve for default-free government bonds is most likely to steepen.我看答案中解释：经济衰退时央行降准，短期利率下降，但是长期利率不会受到太大影响，央行希望将在未来将短期利率拉回正常水平，到经济恢复期，利率又会上升，这样理解对吗？ 还有想问的就是，yield curve的横纵坐标分别是什么？

老师好，图中彩色标记的两个切点代表的意义什么？有什么区别？谢谢！

老师 这道题麻烦您讲下 就是我不明白怎么要用一开始估计的0.435减去后来假设的0.5……

老师好 这里面是两道书后题：为什么第一张图的23题是要查t分布表？而第二张图里的直接就可以用Z分布表里的1.96呢？

risk-free arbitrage profit的公式到底是啥，如何判断正负，老师没讲，视频里，一头雾水