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| Рамка на HJM× | Модел на Хъл-Уайт× | |
|---|---|---|
| Област | Количествени финанси | Количествени финанси |
| Семейство | Regression model | Regression model |
| Година на възникване≠ | 1992 | 1990 |
| Създател≠ | David Heath, Robert Jarrow, and Andrew Morton | John C. Hull and Alan White |
| Тип≠ | Interest Rate Framework | Interest Rate Model |
| Основополагащ източник≠ | 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 ↗ |
| Други названия | Forward Rate Model, No-Arbitrage Drift Condition | Extended Vasicek, Generalized Vasicek |
| Свързани | 4 | 4 |
| Резюме≠ | 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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