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
BBB rated bond category
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:
前面不是总结了说 instantaneous的时候 第一个T=0 ,后面的那个直接用PDXLGD吗? 怎么解析里又把 前面的 spread 带上了?