Σύγκριση μεθόδων

	Πλαίσιο HJM	Μοντέλο Hull-White
Πεδίο	Ποσοτική Χρηματοοικονομική	Ποσοτική Χρηματοοικονομική
Οικογένεια	Regression model	Regression model
Έτος προέλευσης	1992	1990
Δημιουργός	David Heath, Robert Jarrow, and Andrew Morton	John C. Hull and Alan White
Τύπος	Interest Rate Framework	Interest Rate Model
Θεμελιώδης πηγή	Heath, D., Jarrow, R. A., & Morton, A. (1992). Bond pricing and the term structure of interest rates: A new methodology for contingent claims valuation. Econometrica, 60(1), 77-105.	Hull, J., & White, A. (1990). Pricing interest-rate-derivative securities. Review of Financial Studies, 3(4), 573-592.
Εναλλακτικές ονομασίες	Forward Rate Model, No-Arbitrage Drift Condition	Extended Vasicek, Generalized Vasicek
Συναφείς	4	4
Σύνοψη	The Heath-Jarrow-Morton (HJM) framework (1992) is a general no-arbitrage approach to modeling the entire term structure of forward rates. Unlike short-rate models, HJM works directly with forward rates f(t,T) and specifies their volatility; the drift is then determined by arbitrage constraints. This flexibility enables multi-factor modeling and accurate calibration to swaption matrices.	The Hull-White model (1990) is a one-factor short-rate model with time-dependent mean reversion and volatility, designed to fit the initial yield curve exactly. It generalizes the Vasicek model to allow better calibration to observed bond and derivative prices, and is widely used for pricing interest rate exotics and managing interest rate risk.