没看懂这道题考的是哪个概念
问题如下图：
选项：
A. 
B. 
C. 
解释：
发亮_品职助教 · 2018年05月18日
这个考察的是Bond pirce的变动，与Bond characteristics的关系。
具体讲义的内容如下：
只要market discount rate发生变化，债券价格就会发生变化，但是债券的属性会影响债券价格变动的大小。
所以，有以上讲义里的几条规律；
根据Maturity effect：在Coupon rate一样的情况下，当市场利率发生变动时，期限长的债券其价格变动幅度更大。所以比照A和C债券，A的变动幅度会更小。
根据Coupon effect：在time-to-maturity一样的情况下，当市场利率发生变动时，Coupon rate越小的债券，其价格变动幅度越大。比照A和B债券，A的Coupon rate更小，所以A的变动幅度更大，B更小。
所以B是价格变动幅度最小的债券。
NO.PZ2016031001000059 问题如下 Whibonwill most likely experienthe smallest percent change in priif the market scount rates for all three bon increase 100 basis points? A.Bon B.Bon C.Bon B is correct.BonB will most likely experienthe smallest percent change in priif market scount rates increase 100 basis points. A higher-coupon bonha smaller percentage prichange tha lower-coupon bonwhen their market scount rates change the same amount (the coupon effect). Also, a shorter-term bongenerally ha smaller percentage prichange tha longer-term bonwhen their market scount rates change the same amount (the maturity effect). BonB will experiena smaller percent change in prithBonA because of the coupon effect. BonB will also experiena smaller percent change in prithBonC because of the coupon effeanthe maturity effect.考点maturity effe coupon effect解析maturity effect表明，对于coupon rate一样的债券，maturity较大的债券，其价格改变较大，在债券A和C中，我们排除C。coupon effect表明，对于maturity一样的债券，coupon rate较小的债券，其价格改变较大，在债券A和B中，排除A。故B正确。 请教如何用YTM的公式，判断coupon rate的影响
NO.PZ2016031001000059 BonB BonC B is correct. BonB will most likely experienthe smallest percent change in priif market scount rates increase 100 basis points. A higher-coupon bonha smaller percentage prichange tha lower-coupon bonwhen their market scount rates change the same amount (the coupon effect). Also, a shorter-term bongenerally ha smaller percentage prichange tha longer-term bonwhen their market scount rates change the same amount (the maturity effect). BonB will experiena smaller percent change in prithBonA because of the coupon effect. BonB will also experiena smaller percent change in prithBonC because of the coupon effeanthe maturity effect.请问这个题目怎么求ration呢？计算器可以吗？还是要现金流一笔笔算Macaulration，再➗（1➕ytm）得到mofieration？
B 和 C 的利率并不相等，如何比较 maturity？
这题140页的知识点老师视频当时说学过后面的回头讲的啊，这章学完了也没讲啊，不知道讲解是不是还在后面
老师这道题在讲义第几页啊