EvanWu · 2022年02月23日
* 问题详情，请 查看题干
NO.PZ202112010200001903
问题如下：
Which bond rating category offers the highest expected excess return if spreads instantaneously rise 10% across all ratings categories?
选项：
A. A rated bond category
B. BBB rated bond category
C. BB rated bond category
解释：
A is correct. If spreads rise 10% across all ratings categories, we can use
E[ExcessSpread] ≈ Spread0 –(EffSpreadDur × ΔSpread) – (POD × LGD) to solve
for expected excess spread as follows:
前面54题不也是说instantaneous，s*t就按照0来算？
pzqa015 · 2022年02月24日
嗨，努力学习的PZer你好：
原版书这里讲的特别乱，教研组老师一起讨论后，认为关于EXR这个知识点的题目按照如下两种思路处理:
1、只要有instan，第一项spread就乘以t=0，第三项LGD*PD不乘0了，LGD*PD是多少就是多少，这点课后题就是这么做的。
所以，如果是Instan，Excess spread这么算：
EXR = Spread 0 × 0 - spread duration × △ Spread - LGD × PD
2、若没有instan，那么持有期是多少（小于1年），第一项Spread和第三项LGD*PD都要乘以t，这是例题这么做的。所以Excess spread这么算：
EXR = Spread 0 × t - spread duration × △ Spread - LGD × PD×t
----------------------------------------------努力的时光都是限量版，加油！
dauphinois16 · 2022年04月13日
题干里是说了Instant，按上面解释第一项spread里不是要乘以0么，可是答案里给的结果是没乘0得出的吧？不太明白/// 另外哪道例题第三项乘以t的且t小于1？
NO.PZ202112010200001903问题如下 Whibonrating category offers the highest expecteexcess returnif sprea rise 10% across all ratings categories? A.A rateboncategoryB.BrateboncategoryC.rateboncategory A is correct. If sprea rise 10% across all ratingscategories, we cuseE[ExcessSprea ≈ Sprea –(EffSpreaur× ΔSprea – (PO× LG to solvefor expecteexcess sprefollows: 看到助教-t*LGPO请论证，谢谢
NO.PZ202112010200001903 问题如下 Whibonrating category offers the highest expecteexcess returnif sprea rise 10% across all ratings categories? A.A rateboncategory B.Brateboncategory C.rateboncategory A is correct. If sprea rise 10% across all ratingscategories, we cuseE[ExcessSprea ≈ Sprea –(EffSpreaur× ΔSprea – (PO× LG to solvefor expecteexcess sprefollows: 请问current rate为何是0？以及答案中excess sprea什么？怎么计算出来的？
NO.PZ202112010200001903问题如下 investor is facewith active portfolio cisionacross three bonrating categories baseon the following current marketinformation: Whibonrating category offers the highest expecteexcess returnif sprea instantaneously rise 10% across all ratings categories? A.A rateboncategoryB.BrateboncategoryC.rateboncategory A is correct. If sprea rise 10% across all ratingscategories, we cuseE[ExcessSprea ≈ Sprea –(EffSpreaur× ΔSprea – (PO× LG to solvefor expecteexcess sprefollows: instantaneously 的变化计算时候还加 sprea？你再好好看看答案计算过程，服了
NO.PZ202112010200001903 问题如下 investor is facewith active portfolio cisionacross three bonrating categories baseon the following current marketinformation: Whibonrating category offers the highest expecteexcess returnif sprea instantaneously rise 10% across all ratings categories? A.A rateboncategory B.Brateboncategory C.rateboncategory A is correct. If sprea rise 10% across all ratingscategories, we cuseE[ExcessSprea ≈ Sprea –(EffSpreaur× ΔSprea – (PO× LG to solvefor expecteexcess sprefollows: 老师好，想问个细节。在这个问答中【https://class.pzacamy.com/qa/149512 】，EXR公式最后一项是【+( LGP】吗？是不是写错了？
NO.PZ202112010200001903 问题如下 Whibonrating category offers the highest expecteexcess returnif sprea instantaneously rise 10% across all ratings categories? A.A rateboncategory B.Brateboncategory C.rateboncategory A is correct. If sprea rise 10% across all ratingscategories, we cuseE[ExcessSprea ≈ Sprea –(EffSpreaur× ΔSprea – (PO× LG to solvefor expecteexcess sprefollows: 如题
