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Untitled - UFRJ

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Bayesian Selection for Heston Models with VolatilitiesDetermined by Fourier Series MethodRodrigo dos Santos Targino<strong>UFRJ</strong> - BrazilYuri F. SaporitoIMPA - BrazilMilan MerkleUniversity of Belgrade - SerbiaThe aim of this work is to present a methodology of comparison of two diffusion models based ona continuous version of the Bayes Factor. This method is strongly dependent on the estimate of theinstantaneous volatility and since it is well known that the classical estimate becomes unstable for nonconstantdiffusion coefficients, a different approach is proposed. The method proposed for estimationof the volatility is the Fourier Series Method of Malliavin and Mancino. As an application of thismethodology we present a simulated example based on the well known Heston Stochastic VolatilityModel.151

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