Efficient Gibbs Sampling for Markov Switching GARCH Models
Monica Billio,
Roberto Casarin and
Ayokunle Osuntuyi ()
No 2012:35, Working Papers from Department of Economics, University of Venice "Ca' Foscari"
Abstract:
We develop efficient simulation techniques for Bayesian inference on switching GARCH models. Our contribution to existing literature is manifold. First, we discuss different multi-move sampling techniques for Markov Switching (MS) state space models with particular attention to MS-GARCH models. Our multi-move sampling strategy is based on the Forward Filtering Backward Sampling (FFBS) applied to an approximation of MS-GARCH. Another important contribution is the use of multi-point samplers, such as the Multiple-Try Metropolis (MTM) and the Multiple trial Metropolize Independent Sampler, in combination with FFBS for the MS-GARCH process. In this sense we ex- tend to the MS state space models the work of So [2006] on efficient MTM sampler for continuous state space models. Finally, we suggest to further improve the sampler efficiency by introducing the antithetic sampling of Craiu and Meng [2005] and Craiu and Lemieux [2007] within the FFBS. Our simulation experiments on MS-GARCH model show that our multi-point and multi-move strategies allow the sampler to gain efficiency when compared with single-move Gibbs sampling.
Keywords: Bayesian inference; GARCH; Markov switching; Multiple-try Metropolis (search for similar items in EconPapers)
JEL-codes: C11 C15 C53 G17 (search for similar items in EconPapers)
Pages: 40
Date: 2012
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (11)
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Related works:
Journal Article: Efficient Gibbs sampling for Markov switching GARCH models (2016) 
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Persistent link: https://EconPapers.repec.org/RePEc:ven:wpaper:2012:35
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