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| Framework HJM× | Modello di Hull-White× | |
|---|---|---|
| Campo | Finanza quantitativa | Finanza quantitativa |
| Famiglia | Regression model | Regression model |
| Anno di origine≠ | 1992 | 1990 |
| Ideatore≠ | David Heath, Robert Jarrow, and Andrew Morton | John C. Hull and Alan White |
| Tipo≠ | Interest Rate Framework | Interest Rate Model |
| Fonte seminale≠ | 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. DOI ↗ | Hull, J., & White, A. (1990). Pricing interest-rate-derivative securities. Review of Financial Studies, 3(4), 573-592. DOI ↗ |
| Alias | Forward Rate Model, No-Arbitrage Drift Condition | Extended Vasicek, Generalized Vasicek |
| Correlati | 4 | 4 |
| Sintesi≠ | 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. |
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