債券的問題 - 金融分析師

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有一張零息債券face value=100 十年後到期

我用C.I.R模型模擬出未來十年每年的一年期利率後

在這個時點(t=0)債券的市場價值我想應該是100/(1+r(1)0)*(1+r(1)1)...(1+r(1)9)

r(1)t代表在時間點t時的一年期利率

在t=1時 債券的市場價值100/(1+r(1)1)...(1+r(1)9)

在t=2時 債券的市場價值100/(1+r(1)2)...(1+r(1)9)

在t=10時 債券的市場價值=100

我的想法是如果未來的利率都模擬出來了

那債券真的的價值應該是這樣算

假設這樣是對的

那在t=0時 債券的市場價值可以寫成100/(1+r(10)0)嗎

r(10)0代表t=0時的十年期利率

我認為是可以這樣寫的

請問100/(1+r(10)0)會等於100/(1+r(1)0)*(1+r(1)1)...(1+r(1)9)嗎

我認為是相等的

但是有人跟我說兩者可能是不相等的

因為在時間點零時知道t=0時的十年期利率

但是並不知道後面幾年每年的一年期利率

而要產生後面每年的一年期利率時(一千條路徑)都會有亂數參與進去

但是我的想法是利用C.I.R模擬出來的利率應該沒這個問題吧?

因為產生短率後

要產生一年期和十年期利率只有T-t=1or10要注意

請問我這樣想可以嗎?

謝謝


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All Comments

Belly avatarBelly2010-06-10
CIR is an affine yield model
Sandy avatarSandy2010-06-11
simulate 10-year ZC bond based on r(10) distribution
is much easier.
Olivia avatarOlivia2010-06-13
所以我也可以用模擬出來的一年期利率 結果應該一樣吧?
Andy avatarAndy2010-06-18
CIR model satisfies HJM no-arbitrage condition
Megan avatarMegan2010-06-21
so you don't have to worry about that issue
Carolina Franco avatarCarolina Franco2010-06-23
but somehow your simulation algorithm seems wrong to me.
Probably you want to say a bit more about it.
Olive avatarOlive2010-06-23
cir has analatic formula for bond pricing, use it and
Hardy avatarHardy2010-06-26
forget about mc unless you have special reason.
Caroline avatarCaroline2010-06-28
I think he wants to construct the whole term structure
Faithe avatarFaithe2010-07-01
still don't need mc
Elvira avatarElvira2010-07-01
what is mc?
Cara avatarCara2010-07-05
btw, i strongly suggest you go to some sci. computation
Ophelia avatarOphelia2010-07-07
numerical method courses offer by sci/engine schools
Hazel avatarHazel2010-07-09
from your post i think you need some background
Caitlin avatarCaitlin2010-07-10
knowledge (monte carlo) before you write something
meaningful.
Anonymous avatarAnonymous2010-07-10
thank you very much