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| Valutazione neutrale al rischio× | Modello di Mercato LIBOR× | |
|---|---|---|
| Campo | Finanza quantitativa | Finanza quantitativa |
| Famiglia | Regression model | Regression model |
| Anno di origine≠ | 1979 | 1997 |
| Ideatore≠ | John Harrison and David Kreps | Alan Brace, Dariusz Gatarek, and Marek Musiela |
| Tipo≠ | Fundamental Principle | Interest Rate Model |
| Fonte seminale≠ | Harrison, J. M., & Kreps, D. M. (1979). Martingales and arbitrage in multiperiod securities markets. Journal of Economic Theory, 20(3), 381-408. DOI ↗ | Brace, A., Gatarek, D., & Musiela, M. (1997). The market model of interest rate dynamics. Mathematical Finance, 7(2), 127-155. DOI ↗ |
| Alias | Risk-Neutral Measure, Q-Measure | BGM Model, LMM |
| Correlati | 4 | 4 |
| Sintesi≠ | Risk-neutral valuation (1979) is the fundamental principle that derivative prices equal the expected payoff discounted at the risk-free rate, computed under a risk-neutral probability measure (Q-measure). This principle, formalized by Harrison and Kreps, eliminates the need to estimate risk premia and is the foundation of modern derivatives pricing. | The LIBOR Market Model (BGM), developed by Brace, Gatarek, and Musiela (1997), is a multi-factor interest rate model that directly models forward LIBOR rates as lognormal processes. Unlike short-rate models, LMM naturally prices caplets at the market level and is the industry standard for valuing caps, floors, and exotic interest rate derivatives. |
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