Which of the following covenants can protect bondholders against the dilution of their claims? is a restriction on: A Restriction on interest coverage ratio. B Restriction on investments. C Restriction on mergers and acquisitions. C选项和B选项为何不对

30除以根号50 用计算器算出来是4.2426 是什么情况 ？谢谢

请问老师，如果有“non-accelerating inflation rate of unemployment”，什么样的unemployment rate会accelerate inflation呢？谢谢。

刚开始听不懂纳什均衡，囚徒困境，觉得是我自己的问题，网上搜了李永乐老师关于纳什均衡的解释，懂了！！！！！！https://www.bilibili.com/video/av22773453/

刚开始听不懂纳什均衡，囚徒困境，觉得是我自己的问题，网上搜了李永乐老师关于纳什均衡的解释，懂了！！！！！！https://www.bilibili.com/video/av22773453/ 经济还有其他老师的视频吗

看了网上的李永乐老师讲纳税均衡，发现听不懂不是我的问题，是老师的表达问题！！！

用正负数来解答的时候，ZY是正函数，ZX是负函数，一正一负走向为什么就一定是负的？

这道题的意思是竞争反而导致更大的寡头垄断？

整个经济部分感觉都听不懂，尤其是涉及模型，听课听得一知半解，做题也是一知半解，还没有理解经济的思维模式和术语。😭

20. A financial analyst is analyzing the amortization of a product patent acquired by MAKETTI S.p.A., an Italian corporation. He gathers the following information about the patent: Acquisition cost €5,800,000 Acquisition date 1 January 2009 Patent expiration date 31 December 2015 Total plant capacity of patented product 40,000 units per year Production of patented product in fiscal year ended 31 December 2009 20,000 units Expected production of patented product during life of the patent 175,000 units If the analyst uses the units-of-production method, the amortization expense on the patent for fiscal year 2009 is closestto: A. €414,286. B. €662,857. C. €828,571. 老师，这个题为什么不选A，而选B 呢？