请问 为什么外汇储备大的国家实施干预更有效？

73页例题的最后一问F检验结果怎么求？

请问讲义第73页的例题的第二问，为什么看result of the slope coefficient significance test只要看p-value就可以？怎么看？

The following information is available concerning a new showroom a company built, with construction starting on 1 January 2010 and the grand opening on 2 January 2012: The depreciation expense (in € millions) for the showroom in 2012 is closest to: 老师您好，中间利息支付那部分为什也要算入，有点不太理解

B哪里不对了？

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？