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Closed Form Solutions for Term Structure Derivatives with Log-Normal Interest RatesKristian R. MiltersenCopenhagen Business School Klaus SandmannUniversity of Bonn - The Bonn Graduate School of Economics Dieter SondermannUniversity of Bonn - Institute of Statistics March 1995 Abstract: We derive a unified model which gives closed form solutions for caps and floors written on interest rates as well as puts and calls written on zero-coupon bonds. The crucial assumption is that forward rates with a compounding period that matches the contract, which we want to price, is log- normally distributed. Moreover, this assumption is shown to be consistent with the Heath-Jarrow-Morton model for a specific choice of volatility.
JEL Classification: G13 working papers seriesDate posted: August 18, 1999Suggested CitationContact Information
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