Arbeitspapier
On the geometry of interest rate models
In this paper, which is a substantial extension of the earlier essay Björk (2001), we give an overview of some recent work on the geometric properties of the evolution of the forward rate curve in an arbitrage free bond market. The main problems to be discussed are as follows. 1. When is a given forward rate model consistent with a given family of forward rate curves? 2. When can the inherently infinite dimensional forward rate process be realized by means of a Markovian finite dimensional state space model. We consider interest rate models of Heath-Jarrow-Morton type, where the forward rates are driven by a multidimensional Wiener process, and where he volatility is allowed to be an arbitrary smooth functional of the present forward rate curve. Within this framework we give necessary and sufficient conditions for consistency, as well as for the existence of a finite dimensional realization, in terms of the forward rate volatilities. We also study stochastic volatility HJM models, and we provide a systematic method for the construction of concrete realizations.
- Sprache
-
Englisch
- Erschienen in
-
Series: SSE/EFI Working Paper Series in Economics and Finance ; No. 545
- Klassifikation
-
Wirtschaft
Interest Rates: Determination, Term Structure, and Effects
Contingent Pricing; Futures Pricing; option pricing
- Thema
-
Forward rate curves
interest rate models
factor models
state space models
Markovian realizations
Markovscher Prozess
Zinsstrukturtheorie
Zinsstrukturtheorie
- Ereignis
-
Geistige Schöpfung
- (wer)
-
Björk, Tomas
- Ereignis
-
Veröffentlichung
- (wer)
-
Stockholm School of Economics, The Economic Research Institute (EFI)
- (wo)
-
Stockholm
- (wann)
-
2003
- Handle
- Letzte Aktualisierung
-
10.03.2025, 11:42 MEZ
Datenpartner
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Objekttyp
- Arbeitspapier
Beteiligte
- Björk, Tomas
- Stockholm School of Economics, The Economic Research Institute (EFI)
Entstanden
- 2003
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