Particle rolling MCMC with Double Block Sampling: Conditional SMC Update Approach

Naoki Awaya and Yasuhiro Omori ()
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Naoki Awaya: Graduate School of Economics, The University of Tokyo

No CIRJE-F-1066, CIRJE F-Series from CIRJE, Faculty of Economics, University of Tokyo

Abstract: An efficient simulation-based methodology is proposed for the rolling window esti- mation of state space models. Using the framework of the conditional sequential Monte Carlo update in the particle Markov chain Monte Carlo estimation, weighted particles are updated to learn and forget the information of new and old observations by the forward and backward block sampling with the particle simulation smoother. These particles are also propagated by the MCMC update step. Theoretical justifications are provided for the proposed estimation methodology. As a special case, we obtain a new sequential MCMC based on Particle Gibbs. It is a exible method alternative to SMC2 that is based on Particle MH. The computational performance is evaluated in illustrative examples, showing that the posterior distributions of model parameters and marginal likelihoods are estimated with accuracy.

Pages: 44 pages
Date: 2017-09
New Economics Papers: this item is included in nep-ecm
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Persistent link: https://EconPapers.repec.org/RePEc:tky:fseres:2017cf1066

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