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Quaestiones Mathematicae

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The density process of the minimal entropy Martingale measure in a Stochastic volatility market. A PDE approach

Rodwell Kufakunesu

Abstract


In a stochastic volatility market the Radon-Nikodym density of the minimal entropy martingale measure can be expressed in terms of the solution of a semilinear partial differential equation (PDE). This fact has been explored and illustrated for the time-homogeneous case in a recent paper by Benth and Karlsen [3]. However, there are some cases which time-dependent parameters are required such as when it comes to calibration. This paper generalizes their model to the time-inhomogeneous case.

Quaestiones Mathematicae 34(2011), 147–174.



http://dx.doi.org/10.2989/16073606.2011.594229
AJOL African Journals Online