NO.PZ2020033001000064
问题如下:
The pricing curve of a zero-coupon bond becomes ___ when the maturity increases, assuming all other factors remain constant.
选项:
A.
less concave.
B.
more concave.
C.
less convex.
D.
more convex.
解释:
D is correct.
考点:Bond valuation
解析:
债券价格在到期日回归面值,由于零息债券一般都是折价发行,所以price curve 是凸的,且到期时间长的债券久期长,凸性随久期的增加而增加。
老师我感觉不知道原理,为啥久期越长凸性越大,原理是什么,讲义上有吗