单选题 A 12% semiannual-pay coupon bond has 1.5 years to maturity. The bond is currently trading at par. Using a 100 basis point change in yield, what is the effective duration of the bond?
【正确答案】 A
【答案解析】[解析] 如果收益率下降100个基点,则新的收益率为12%-1%=11%,相应的半年期收益率为11%/2=5.5%。

如果收益率上升100个基点,则新的收益率为12%+1%=13%,相应的半年期收益率为13%/2=6.5%。