NO.PZ2018091701000019
问题如下:
An investor proposes buying a one-year government zero-coupon bond with face value of $100 and priced at $97.5, investor also collected some market information, the one-year real risk-free rate at 1.56% and unexpected inflation is 2.12% last year, please calculate the implied expected inflation rate for the one-year government zero-coupon bond:
选项:
A.
1.1%
B.
-1.1%
C.
2.5%
解释:
B is correct.
考点:计算公式:P t= ( C F t+s )/( 1+ l t,1 + θ t,1+ π t,1 ) s
解析:根据题干提供的已知变量,倒推出未知变量θ:97.5=100/(1+ 1.56%+θ+2.12%)
可以计算出θ=-0.011 or -1.1%
前面的学习不是说 zero coupon bond 的r 与real risk free rate的差就是expected和unexpected inflation吗?那通过100/(1+r)=97.5反推出来 r是0.02564 则expected是0.02564-0.0156-0.0212=-0.0112,是这么理解吗?