NO.PZ2023090201000020
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。
这个题目前提是期限是一样的都是2年啊，所以不存在谁的还款期长短的问题啊