这道题我明白应该是选择pay fixed的头寸来降低duration,有2个问题:
1. B选项是short receiver swaption不太理解,receiver swaption是receive fixed,然后做了short头寸是要怎么执行?是卖出收固定的,也就是相当于付浮动?
2. 另外,我记得在equity章节经典题R26 income and cost in an equity portfoliodi第三题,这一道题的选项是writing covered call,这个我在有问必答上面问,老师的回复是writing covered call就是covered call,怎么到这道题里面writing receiver swaption就变成short头寸了?