老师您好,
我有两个问题。1是不是如果用公式算出来的值大于零,则Yield的变化关系与题目中的变化关系相反。
2 这道题中,如果两种factor变化不同向。怎么计算呢
问题如下图:
选项:
A.
B.
C.
解释:
李宗_品职助教 · 2018年03月26日
你好同学,这里考察的three factor model。
1)关于符号,由于题目中给出的是decrease 1 std deviation,所以都是代入(-1),得到正的0.0389%,就是increase,没有tricky的地方。
2)如果方向不一致,increase 代入正的,decreae代入负的,结果正就是increase,结果负就是decrease。
我觉得可能同学审题木有看到decrease,所以会有这样的疑问。。同学加油哈 (*•̀ㅂ•́ )و
he123456 · 2019年03月17日
我直接根据题目意思做出来的,但是不理解用的哪个公式,是拆分成3因素的那个公式吗
Molly · 2019年03月23日
是
NO.PZ201701230200000307 问题如下 7. Baseon Exhibit 1, the results of Analysis 2 shoulshow the yielon the five-yebon A.creasing 0.8315%. B.creasing 0.0389%. C.increasing 0.0389%. C is correct. Because the factors in Exhibit 1 have been stanrzeto have unit stanrviations, a one stanrviation crease in both the level factor anthe curvature factor will leto the yielon the five-yebonincreasing 0.0389%, calculatefollows:Change in five-yebonyiel= 0.4352% - 0.3963% = 0.0389%. 这题做对了,但是这个mol不太熟悉,哪里的知识点?
NO.PZ201701230200000307 问题如下 7. Baseon Exhibit 1, the results of Analysis 2 shoulshow the yielon the five-yebon A.creasing 0.8315%. B.creasing 0.0389%. C.increasing 0.0389%. C is correct. Because the factors in Exhibit 1 have been stanrzeto have unit stanrviations, a one stanrviation crease in both the level factor anthe curvature factor will leto the yielon the five-yebonincreasing 0.0389%, calculatefollows:Change in five-yebonyiel= 0.4352% - 0.3963% = 0.0389%. -(-1)×(-0.4352%)-(-1)×0.3963%=-0.0389%
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NO.PZ201701230200000307 老师,请问什么情况下需要考虑权重啊,计算价格变化的那个公式是考虑了权重后的加权平均数,为什么这道题不用加权呢? 谢谢老师啦!
NO.PZ201701230200000307 题干中表格level数值为负的,是one viation increase的数据;而算出来的结果为正的0.0389,所以应该是相反 变成crease?谢谢老师。