解释的太粗糙了，详细解释下是哪个知识点，分别啥意思。。。

解释的太粗糙了，详细解释下是哪个知识点，分别啥意思。。。

为什么这题目中说发行新债务是 稀释债券持有人的权利呢。债务债权不会被稀释啊

J curve为什么在一开始的时候，贸易赤字会恶化？贸易价格和数量已经确定了，那么短期之内贸易赤字应该不变啊

能否利用公式详细解一下这题，或者指出我的计算在哪出了问题

Catherine, CFA, is a portfolio manager at NEW Asset Management, which specializes in trading highly illiquid shares. Catherine has been using Great securities Brokers almost exclusively when making transactions for NEW clients, and his own relatively small account. Great Securities Brokers always executes Catherine’s personal trades at a more preferential price than for Catherine’s clients’ accounts. This occurs regardless of whether or not Catherine personally trades before or after clients. Catherine should least likely do which of the following in order to comply with the CFA Institute Code of Ethics and Standards of Professional Conduct? 这个题为什么不是 trade clients account first？以后遇到own account 的话，只要average trade price 就可以了吗？ 谢谢

老师您好，这个题第二问求组合标准差的话,，A的方差为625，,B的方差为196，代入公式的话组合标准差的值很大的啊，算不出是20.22%

（科目4-A4 1）本题的A,B解析里虽然解释了意思和用途，但我想知道这两个表属于6类里的那两类？

这里有四大类公式，太多了，都要背吗？

lease payment是在SG&A里的吗？