Andrew2021-04-24 14:55:51
第21章课后题第15题。网课中在说到债务抵押债券(CDO)中,并未提及当高层级(senior tranche)和低层级(subordinated tranche)违约概率相关性为正或为负时,中层级(mezzanine tranche)的相对价值将会如何变动。为何说,当高层级与低层级违约债券相关性为正时,中层级的相对价值将会上升呢?谢谢!
回答(1)
Nicholas2021-04-25 10:55:18
同学,早上好。
这里协会是有勘误的,勘误内容如下:
In the information for Questions 10-15, after “Easton:” (page 300 of print) should read, “If the correlation of the expected defaults on the CDO collateral of the senior and subordinated traches is positive, the relative value of the equity tranche compared with the senior and mezzanine tranches will increase.”
In the solution to Question 15 (page 302 of print), the last sentence should read, “As correlations increase, the values of the equity tranches usually increase relative to the values of the senior and mezzanine tranches.”
其实这里的逻辑是一样的,
相关性增加,代表高级债违约,次级债也会违约;高级债不违约,次级债也不会违约。那我不如买收益更高的次级债;
相关性较少,代表高级债不违约,次级债会违约,另一种情况不可能。那我肯定是要买有收益的高级债,而避免违约的次级债。
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