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9#
发表于 2011-10-3 16:13
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@ betaprivate, i wouldnt jump into any of these put models here for a few reasons:
1) it's a theory built on shaky academic grounds with many holes to fill in
2) rigorous academic research (if any) and empirical support for such models resides exclusively in the equity space. you cant just transalate any of these results into the fixed income area without substantial modifications and additional support
3) even if you could, it certainly wouldnt happen in the simple way you outlined above. you are pricing some sort of put option where the underlying is a bond with black-scholes, thats like doing brain surgery with a meat cleaver. you'll need to formulate it as a call option where the underlying is interest rate and apply a mean-reverting model such as Vasicek instead of simple GBM
4) what the heck is a "holding period" here anyway? there are no absolute trading restrictions on the bond, just large bid-ask spreads but you can in principle sell it at any time, even tomorrow
5) finnerty and asian put, isnt that one and the same
@transferpricingcfa, your best bet is dig out some empirical data and dont touch any of this "theory". however, i think that in general for bonds it is very hard to separate credit risk premium from illiquidity premium. Longstaff has some work on the subject but i dont think there is anything conclusive. if your benchmark issues are far more liquid than the instrument you are pricing, higgmond's approach of adding a few bp and calling it a day might be your best bet
Edited 1 time(s). Last edit at Tuesday, April 19, 2011 at 01:19PM by Mobius Striptease. |
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