Inference for Levy-Driven Stochastic Volatility Models via Adaptive Sequential Monte Carlo
We investigate simulation methodology for Bayesian inference in Lévy-driven stochastic volatility (SV) models. Typically, Bayesian inference from such models is performed using Markov chain Monte Carlo (MCMC); this is often a challenging task. Sequential Monte Carlo (SMC) samplers are methods that c...
Main Authors: | , , , |
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Format: | Journal article |
Language: | English |
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2011
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_version_ | 1797096352566476800 |
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author | Jasra, A Stephens, D Doucet, A Tsagaris, T |
author_facet | Jasra, A Stephens, D Doucet, A Tsagaris, T |
author_sort | Jasra, A |
collection | OXFORD |
description | We investigate simulation methodology for Bayesian inference in Lévy-driven stochastic volatility (SV) models. Typically, Bayesian inference from such models is performed using Markov chain Monte Carlo (MCMC); this is often a challenging task. Sequential Monte Carlo (SMC) samplers are methods that can improve over MCMC; however, there are many user-set parameters to specify. We develop a fully automated SMC algorithm, which substantially improves over the standard MCMC methods in the literature. To illustrate our methodology, we look at a model comprised of a Heston model with an independent, additive, variance gamma process in the returns equation. The driving gamma process can capture the stylized behaviour of many financial time series and a discretized version, fit in a Bayesian manner, has been found to be very useful for modelling equity data. We demonstrate that it is possible to draw exact inference, in the sense of no time-discretization error, from the Bayesian SV model. © 2010 Board of the Foundation of the Scandinavian Journal of Statistics. |
first_indexed | 2024-03-07T04:40:36Z |
format | Journal article |
id | oxford-uuid:d1806c52-9eb7-4f80-bcf9-d8c6d569203c |
institution | University of Oxford |
language | English |
last_indexed | 2024-03-07T04:40:36Z |
publishDate | 2011 |
record_format | dspace |
spelling | oxford-uuid:d1806c52-9eb7-4f80-bcf9-d8c6d569203c2022-03-27T07:57:21ZInference for Levy-Driven Stochastic Volatility Models via Adaptive Sequential Monte CarloJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:d1806c52-9eb7-4f80-bcf9-d8c6d569203cEnglishSymplectic Elements at Oxford2011Jasra, AStephens, DDoucet, ATsagaris, TWe investigate simulation methodology for Bayesian inference in Lévy-driven stochastic volatility (SV) models. Typically, Bayesian inference from such models is performed using Markov chain Monte Carlo (MCMC); this is often a challenging task. Sequential Monte Carlo (SMC) samplers are methods that can improve over MCMC; however, there are many user-set parameters to specify. We develop a fully automated SMC algorithm, which substantially improves over the standard MCMC methods in the literature. To illustrate our methodology, we look at a model comprised of a Heston model with an independent, additive, variance gamma process in the returns equation. The driving gamma process can capture the stylized behaviour of many financial time series and a discretized version, fit in a Bayesian manner, has been found to be very useful for modelling equity data. We demonstrate that it is possible to draw exact inference, in the sense of no time-discretization error, from the Bayesian SV model. © 2010 Board of the Foundation of the Scandinavian Journal of Statistics. |
spellingShingle | Jasra, A Stephens, D Doucet, A Tsagaris, T Inference for Levy-Driven Stochastic Volatility Models via Adaptive Sequential Monte Carlo |
title | Inference for Levy-Driven Stochastic Volatility Models via Adaptive Sequential Monte Carlo |
title_full | Inference for Levy-Driven Stochastic Volatility Models via Adaptive Sequential Monte Carlo |
title_fullStr | Inference for Levy-Driven Stochastic Volatility Models via Adaptive Sequential Monte Carlo |
title_full_unstemmed | Inference for Levy-Driven Stochastic Volatility Models via Adaptive Sequential Monte Carlo |
title_short | Inference for Levy-Driven Stochastic Volatility Models via Adaptive Sequential Monte Carlo |
title_sort | inference for levy driven stochastic volatility models via adaptive sequential monte carlo |
work_keys_str_mv | AT jasraa inferenceforlevydrivenstochasticvolatilitymodelsviaadaptivesequentialmontecarlo AT stephensd inferenceforlevydrivenstochasticvolatilitymodelsviaadaptivesequentialmontecarlo AT douceta inferenceforlevydrivenstochasticvolatilitymodelsviaadaptivesequentialmontecarlo AT tsagarist inferenceforlevydrivenstochasticvolatilitymodelsviaadaptivesequentialmontecarlo |