Simulation of Forward - Reverse Stochastic Representations for Conditional Diffusions

نویسندگان

  • Christian Bayer
  • John Schoenmakers
  • WIAS Berlin
  • J. SCHOENMAKERS
چکیده

AbstractIn this paper we derive stochastic representations for the finite dimensional distributions of a multidimensional diffusion on a fixed time interval, conditioned on the terminal state. The conditioning can be with respect to a fixed point or more generally with respect to some subset. The representations rely on a reverse process connected with the given (forward) diffusion as introduced in Milstein et al. [Bernoulli 10(2):281–312, 2004] in the context of a forward-reverse transition density estimator. The corresponding Monte Carlo estimators have essentially root-N accuracy, hence they do not suffer from the curse of dimensionality. We provide a detailed convergence analysis and give a numerical example involving the realized variance in a stochastic volatility asset model conditioned on a fixed terminal value of the asset.

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تاریخ انتشار 2013