Risk Neutral Valuation of Inflation-Linked Interest Rate Derivatives

Flavia Antonacci, Cristina Costantini, Fernanda D'Ippoliti and Marco Papi

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Abstract: We propose a model for the joint evolution of European inflation, the European Central Bank official interest rate and the short-term interest rate, in a stochastic, continuous time setting. We derive the valuation equation for a contingent claim depending potentially on all three factors. This valuation equation reduces to a finite number of Cauchy problems for a degenerate parabolic PDE with non-local terms. We show that the price of the contingent claim is the only viscosity solution of the valuation equation. We also provide an efficient numerical scheme to compute the price and implement it in an example.

Date: 2019-11
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Persistent link: https://EconPapers.repec.org/RePEc:arx:papers:1911.00386

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