问题如下图：
选项：请问，这算2014年4月10日PV的时候，4月10日这天的coupon为什么不参与折现，变为6期coupon的先付年金？
A. 
B. 
C. 
解释：
吴昊_品职助教 · 2019年12月01日
嗨，爱思考的PZer你好：
这道题未涉及先付年金的概念。债券在某一时点的价值等于未来现金流折现求和，当期的coupon不是未来现金流。我们将未来五笔现金流折现到2014.4.10，得到现值之和为102.36。N=5，PMT=2.5，I/Y=2，FV=100，求得PV=102.36。然后再将这个数值复利到2014.6.16，得到full price为103.10。
我们之所以没有直接将未来五笔现金流折到2014.6.16，是因为五笔现金流的时间间隔不同，后面四笔现金流时间间隔是半年，而从6.16到10.10之间并不是半年。因此现金流就不是一个年金的形式，我们就没有办法用计算器直接求PV了。
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I Yuan · 2020年09月09日
助教你好，请问2014.4.10的$102.36是该时间点的flat price还是full price?谢谢
NO.PZ2016031001000071 问题如下 BonG, scribein the exhibit below, is solfor settlement on 16 June 2014.AnnuCoupon 5%Coupon Payment Frequen SemiannualInterest Payment tes 10 April an10 OctoberMaturity te 10 October 2016y Count Convention 30/360AnnuYielto-Maturity 4%The flprifor BonG on the settlement te of 16 June 2014 is closest to: A.102.18. B.103.10. C.104.02. A is correct.The flpriof 102.18 is terminesubtracting the accrueinterest(from question 20) from the full pri(from question 19).PVFlat=PVFull−Acrrue InterestPV^{Flat}=PV^{Full}-Acrrue;InterestPVFlat=PVFull−AcrruenterestPVFlatPV^{Flat}PVFlat=103.10 - 0.92=102.18考点flpri full price解析flpri= full pri- accrueinterest = 103.10 - 0.92 = 102.18，故A正确。 如题
NO.PZ2016031001000071问题如下BonG, scribein the exhibit below, is solfor settlement on 16 June 2014.AnnuCoupon 5%Coupon Payment Frequen SemiannualInterest Payment tes 10 April an10 OctoberMaturity te 10 October 2016y Count Convention 30/360AnnuYielto-Maturity 4%The flprifor BonG on the settlement te of 16 June 2014 is closest to:A.102.18.B.103.10.C.104.02. A is correct.The flpriof 102.18 is terminesubtracting the accrueinterest(from question 20) from the full pri(from question 19).PVFlat=PVFull−Acrrue InterestPV^{Flat}=PV^{Full}-Acrrue;InterestPVFlat=PVFull−AcrruenterestPVFlatPV^{Flat}PVFlat=103.10 - 0.92=102.18考点flpri full price解析flpri= full pri- accrueinterest = 103.10 - 0.92 = 102.18，故A正确。 老师先谢谢了。。。。。
NO.PZ2016031001000071 问题如下 BonG, scribein the exhibit below, is solfor settlement on 16 June 2014.AnnuCoupon 5%Coupon Payment Frequen SemiannualInterest Payment tes 10 April an10 OctoberMaturity te 10 October 2016y Count Convention 30/360AnnuYielto-Maturity 4%The flprifor BonG on the settlement te of 16 June 2014 is closest to: A.102.18. B.103.10. C.104.02. A is correct.The flpriof 102.18 is terminesubtracting the accrueinterest(from question 20) from the full pri(from question 19).PVFlat=PVFull−Acrrue InterestPV^{Flat}=PV^{Full}-Acrrue;InterestPVFlat=PVFull−AcrruenterestPVFlatPV^{Flat}PVFlat=103.10 - 0.92=102.18考点flpri full price解析flpri= full pri- accrueinterest = 103.10 - 0.92 = 102.18，故A正确。 谢谢老师！
NO.PZ2016031001000071问题如下BonG, scribein the exhibit below, is solfor settlement on 16 June 2014.AnnuCoupon 5%Coupon Payment Frequen SemiannualInterest Payment tes 10 April an10 OctoberMaturity te 10 October 2016y Count Convention 30/360AnnuYielto-Maturity 4%The flprifor BonG on the settlement te of 16 June 2014 is closest to: A.102.18. B.103.10. C.104.02. A is correct.The flpriof 102.18 is terminesubtracting the accrueinterest(from question 20) from the full pri(from question 19).PVFlat=PVFull−Acrrue InterestPV^{Flat}=PV^{Full}-Acrrue;InterestPVFlat=PVFull−AcrruenterestPVFlatPV^{Flat}PVFlat=103.10 - 0.92=102.18考点flpri full price解析flpri= full pri- accrueinterest = 103.10 - 0.92 = 102.18，故A正确。 为啥clepri= rty pri- AI？前面是price，后面是rate，相减是怎么肥事？
有没有直接求flprice的公式的呢？