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We show that efficient importance sampling for nonlinear non-Gaussian state space models can be implemented by … simple and fast method for efficient importance sampling. A simulation study and empirical illustration provide some evidence …
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We propose a new methodology for designing flexible proposal densities for the joint posterior density of parameters and states in a nonlinear non-Gaussian state space model. We show that a highly efficient Bayesian procedure emerges when these proposal densities are used in an independent...
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refer to our new method as numerically accelerated importance sampling. The method is computationally and numerically …-off encountered by other sampling methods. An elaborate simulation study and an empirical application for U.S. stock returns reveal …
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