RT

问题如下：

When the market discount rate of Bond X and Bond Y change in the same amount. Compared to Bond X, the percentage price change of Bond Y will be:

选项：

A.equal B.lower C.higher

解释：

B is correct.

According to the coupon effect, because Bond X has a lower-coupon rate, Bond X will have a greater percentage price change; and Bond Y will have a lower percentage price change.

考点：coupon effect

解析：债券X和Y相比，maturity一样，coupon effect表明：利率变化相同幅度，coupon rate越小，价格变化更大，所以X债券的价格变化更大，Y债券的价格变化更小，故选项B正确。