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PDEs for pricing interest rate derivatives under the new generalized forward market model (FMM). (English) Zbl 07894791

Summary: In this article we derive partial differential equations (PDEs) for pricing interest rate derivatives under the generalized Forward Market Model (FMM) recently presented by A. Lyashenko and F. Mercurio in [“LIBOR replacement: a modelling framework for in-arrears term rates”, Risk 57-62 (2019)] to model the dynamics of the Risk Free Rates (RFRs) that are replacing the traditional IBOR rates in the financial industry. Moreover, for the numerical solution of the proposed PDEs formulation, we develop some adaptations of the finite differences methods developed in [J. G. López-Salas et al., SIAM J. Sci. Comput. 43, No. 1, B30–B54 (2021; Zbl 1456.65073)] that are very suitable to treat the presence of spatial mixed derivatives. This work is the first article in the literature where PDE methods are used to value RFR derivatives. Additionally, Monte Carlo-based methods will be designed and the results are compared with those obtained by the numerical solution of PDEs.

MSC:

91-XX Game theory, economics, finance, and other social and behavioral sciences
35-XX Partial differential equations

Citations:

Zbl 1456.65073

References:

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