问题
单项选择题
What is the duration of a floating rate bond that has six years remaining to maturity and has semi-annual coupon payments. Assume a flat-term structure of 6 percent. Which of the following is closest to the correct duration（）
A. 0.500.
B. 6.000.
C. 12.000.
答案
参考答案：A
解析：
The duration of a floating rate bond is equal to the time until the next coupon payment takes place. As the coupon rate changes semi-annually with the level of the interest rate, a floating rate bond has the same duration as a pure discount bond with time to maturity equal to the time to the next coupon payment of the floating rate bond.