开发者:上海品职教育科技有限公司 隐私政策详情

应用版本:4.2.11(IOS)|3.2.5(安卓)APP下载

缨水珞 · 2021年11月22日

老师你好,想问下这样算哪里算错了?EL1跟答案一样,EL2-EL5都跟答案不一样

NO.PZ2019011002000002

问题如下:

Tim, a credit analyst, is valuing bond B. Bond B is a 5-year corporate bond with a par value of $1000. The bond has a fixed annual coupon rate of 6%, and the coupon is paid annually.

Tim believes that the risk-neutral probability of default (Hazard rate) for each date for the bond is 1.50%, and the recovery rate is 25%. Assume there is no interest rate volatility and the government bond yield curve is flat at 2%.

According to the information above, the fair value of bond B is closet to:

选项:

A.

1083.29

B.

1129.86

C.

1231.29

解释:

B is correct.

考点:考察对Credit risk计量,从而计算Fair value。

解析:

本题按照步骤计算债券价值即可,与上一题的区别是本题的债券每期有Coupon。

第一步:计算每一期的Exposure;第五期的Exposure为1060;

第四期的Exposure,为债券第五年现金流在第四期的现值,加上第四期的Coupon;

即:

60+1060(1+2%)=1099.2260+\frac{1060}{(1+2\%)}=1099.22

第三期的Exposure,为债券第四年,第五年现金流在第三期的现值,加上第三期的Coupon;

即:

60+60(1+2%)+1060(1+2%)2=1137.6660+\frac{60}{(1+2\%)}+\frac{1060}{(1+2\%)^2}=1137.66

依次类推可以计算出每一期的Exposure;计算CVA的步骤和上题一致;有表格:

用2%的无风险利率对该债券进行折现,得到的现值为:1188.538

则可以得到债券的Fair value为:1188.538 - 58.6754 = 1129.86

exposure都算对了,EL=exposure*LGD*pod,为什么算出来EL2-EL5都跟答案不一样?
1 个答案
已采纳答案

吴昊_品职助教 · 2021年11月22日

嗨,爱思考的PZer你好:


关键是你的POD算错了。

第一年的POD就是1.5%,但第二年的POD=(1-1.5%)×1.5%=1.4775%,代表的是第一年不违约的情况下,第二年违约的概率。

同理第三年的POD=(1-1.5%)^2×1.5%=1.4553%,代表的是第一、二年都不违约的情况下,第三年违约的概率。以此类推。


EL2=1175.36×75%×1.4775%=13.0245,EL3=1137.66×75%×1.4553%=12.41727,以此类推。


----------------------------------------------
虽然现在很辛苦,但努力过的感觉真的很好,加油!

  • 1

    回答
  • 1

    关注
  • 631

    浏览
相关问题

NO.PZ2019011002000002 问题如下 Tim, a cret analyst, is valuing bonBonB is a 5-yecorporate bonwith a pvalue of $1000. The bonha fixeannucoupon rate of 6%, anthe coupon is paiannually.Tim believes ththe risk-neutrprobability of fault (Hazarrate) for eate for the bonis 1.50%, anthe recovery rate is 25%. Assume there is no interest rate volatility anthe government bonyielcurve is fl2%.Accorng to the information above, the fair value of bonB is closet to: A.1083.29 B.1129.86 C.1231.29 B is correct.考点考察对Cret risk计量,从而计算Fair value。解析本题按照步骤计算债券价值即可,与上一题的区别是本题的债券每期有Coupon。第一步计算每一期的Exposure;第五期的Exposure为1060;第四期的Exposure,为债券第五年现金流在第四期的现值,加上第四期的Coupon;即:60+1060(1+2%)=1099.2260+\frac{1060}{(1+2\%)}=1099.2260+(1+2%)1060​=1099.22第三期的Exposure,为债券第四年,第五年现金流在第三期的现值,加上第三期的Coupon;即60+60(1+2%)+1060(1+2%)2=1137.6660+\frac{60}{(1+2\%)}+\frac{1060}{(1+2\%)^2}=1137.6660+(1+2%)60​+(1+2%)21060​=1137.66依次类推可以计算出每一期的Exposure;计算CVA的步骤和上题一致;有表格用2%的无风险利率对该债券进行折现,得到的现值为1188.538则可以得到债券的Fair value为1188.538 - 58.6754 = 1129.86 如题

2024-11-11 11:39 1 · 回答

NO.PZ2019011002000002问题如下 Tim, a cret analyst, is valuing bonBonB is a 5-yecorporate bonwith a pvalue of $1000. The bonha fixeannucoupon rate of 6%, anthe coupon is paiannually.Tim believes ththe risk-neutrprobability of fault (Hazarrate) for eate for the bonis 1.50%, anthe recovery rate is 25%. Assume there is no interest rate volatility anthe government bonyielcurve is fl2%.Accorng to the information above, the fair value of bonB is closet to: A.1083.29B.1129.86C.1231.29B is correct.考点考察对Cret risk计量,从而计算Fair value。解析本题按照步骤计算债券价值即可,与上一题的区别是本题的债券每期有Coupon。第一步计算每一期的Exposure;第五期的Exposure为1060;第四期的Exposure,为债券第五年现金流在第四期的现值,加上第四期的Coupon;即:60+1060(1+2%)=1099.2260+\frac{1060}{(1+2\%)}=1099.2260+(1+2%)1060​=1099.22第三期的Exposure,为债券第四年,第五年现金流在第三期的现值,加上第三期的Coupon;即60+60(1+2%)+1060(1+2%)2=1137.6660+\frac{60}{(1+2\%)}+\frac{1060}{(1+2\%)^2}=1137.6660+(1+2%)60​+(1+2%)21060​=1137.66依次类推可以计算出每一期的Exposure;计算CVA的步骤和上题一致;有表格用2%的无风险利率对该债券进行折现,得到的现值为1188.538则可以得到债券的Fair value为1188.538 - 58.6754 = 1129.86计算最后的债券的现值,为什么计算器中为什么fv是1000,而不是1060

2024-09-27 17:16 1 · 回答

NO.PZ2019011002000002问题如下 Tim, a cret analyst, is valuing bonBonB is a 5-yecorporate bonwith a pvalue of $1000. The bonha fixeannucoupon rate of 6%, anthe coupon is paiannually.Tim believes ththe risk-neutrprobability of fault (Hazarrate) for eate for the bonis 1.50%, anthe recovery rate is 25%. Assume there is no interest rate volatility anthe government bonyielcurve is fl2%.Accorng to the information above, the fair value of bonB is closet to: A.1083.29B.1129.86C.1231.29B is correct.考点考察对Cret risk计量,从而计算Fair value。解析本题按照步骤计算债券价值即可,与上一题的区别是本题的债券每期有Coupon。第一步计算每一期的Exposure;第五期的Exposure为1060;第四期的Exposure,为债券第五年现金流在第四期的现值,加上第四期的Coupon;即:60+1060(1+2%)=1099.2260+\frac{1060}{(1+2\%)}=1099.2260+(1+2%)1060​=1099.22第三期的Exposure,为债券第四年,第五年现金流在第三期的现值,加上第三期的Coupon;即60+60(1+2%)+1060(1+2%)2=1137.6660+\frac{60}{(1+2\%)}+\frac{1060}{(1+2\%)^2}=1137.6660+(1+2%)60​+(1+2%)21060​=1137.66依次类推可以计算出每一期的Exposure;计算CVA的步骤和上题一致;有表格用2%的无风险利率对该债券进行折现,得到的现值为1188.538则可以得到债券的Fair value为1188.538 - 58.6754 = 1129.86请问exposure有用计算器快速计算的方法吗

2024-03-03 17:48 1 · 回答

NO.PZ2019011002000002 问题如下 Tim, a cret analyst, is valuing bonBonB is a 5-yecorporate bonwith a pvalue of $1000. The bonha fixeannucoupon rate of 6%, anthe coupon is paiannually.Tim believes ththe risk-neutrprobability of fault (Hazarrate) for eate for the bonis 1.50%, anthe recovery rate is 25%. Assume there is no interest rate volatility anthe government bonyielcurve is fl2%.Accorng to the information above, the fair value of bonB is closet to: A.1083.29 B.1129.86 C.1231.29 B is correct.考点考察对Cret risk计量,从而计算Fair value。解析本题按照步骤计算债券价值即可,与上一题的区别是本题的债券每期有Coupon。第一步计算每一期的Exposure;第五期的Exposure为1060;第四期的Exposure,为债券第五年现金流在第四期的现值,加上第四期的Coupon;即:60+1060(1+2%)=1099.2260+\frac{1060}{(1+2\%)}=1099.2260+(1+2%)1060​=1099.22第三期的Exposure,为债券第四年,第五年现金流在第三期的现值,加上第三期的Coupon;即60+60(1+2%)+1060(1+2%)2=1137.6660+\frac{60}{(1+2\%)}+\frac{1060}{(1+2\%)^2}=1137.6660+(1+2%)60​+(1+2%)21060​=1137.66依次类推可以计算出每一期的Exposure;计算CVA的步骤和上题一致;有表格用2%的无风险利率对该债券进行折现,得到的现值为1188.538则可以得到债券的Fair value为1188.538 - 58.6754 = 1129.86 谢谢!

2023-10-12 20:27 1 · 回答