The Fractional Ornstein-Uhlenbeck Process: Term Structure Theory and Application

Espen P. Høg () and Per H. Frederiksen ()
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Espen P. Høg: Department of Accounting, Aarhus School of Business, Postal: The Aarhus School of Business, Fuglesangs Allé 4, 8210 Aarhus V, Denmark, http://www.asb.dk/staff/bs/eh.aspx?page=%7B803EFF10-69F7-4C0F-AEE3-F7F410E4B6F2%7D
Per H. Frederiksen: Jyske Bank

No F-2006-01, Finance Research Group Working Papers from University of Aarhus, Aarhus School of Business, Department of Business Studies

Abstract: The paper revisits dynamic term structure models (DTSMs) and proposes a new way in dealing with the limitation of the classical affine models. In particular, this paper expands the flexibility of the DTSMs by applying a fractional Brownian motion as the governing force of the state variable instead of the standard Brownian motion. This is a new direction in pricing non defaultable bonds with offspring in the arbitrage free pricing of weather derivatives based on fractional Brownian motions. By applying fractional Ito calculus and a fractional version of the Girsanov transform, a no arbitrage price of the bond is recovered by solving a fractional version of the fundamental bond pricing equation. Besides this theoretical contribution, the paper proposes an estimation methodology based on the Kalman filter approach, which is applied to the US term structure of interest rates.

Keywords: Fractional bond pricing equation; fractional Brownian motion; fractional Ornstein-Uhlenbeck process; long memory; Kalman filter (search for similar items in EconPapers)
Date: 2006-04-24
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