Publication Type
Journal Article
Version
acceptedVersion
Publication Date
8-2014
Abstract
The Laplace approximation is used to perform maximum likelihood estimation of univariate and multivariate stochastic volatility (SV) models. It is shown that the implementation of the Laplace approximation is greatly simplified by the use of a numerical technique known as automatic differentiation (AD). Several algorithms are proposed and compared with some existing maximum likelihood methods using both simulated data and actual data. It is found that the new methods match the statistical efficiency of the existing methods while significantly reducing the coding effort. Also proposed are simple methods for obtaining the filtered, smoothed and predictive values for the latent variable. The new methods are implemented using the open source software AD Model Builder, which with its latent variable module (ADMB-RE) facilitates the formulation and fitting of SV models. To illustrate the flexibility of the new algorithms, several univariate and multivariate SV models are fitted using exchange rate and equity data.
Keywords
Empirical Bayes, Laplace approximation, Automatic differentiation; AD Model Builder, Simulated maximum likelihood, Importance sampling
Discipline
Econometrics | Economics
Research Areas
Econometrics
Publication
Computational Statistics and Data Analysis
Volume
76
First Page
642
Last Page
654
ISSN
0167-9473
Identifier
10.1016/j.csda.2013.10.005
Publisher
Elsevier
Citation
SKAUG, Hans J. and YU, Jun.
A flexible and automated likelihood based framework for inference in stochastic volatility models. (2014). Computational Statistics and Data Analysis. 76, 642-654.
Available at: https://ink.library.smu.edu.sg/soe_research/1615
Copyright Owner and License
Authors
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License.
Additional URL
https://doi.org/10.1016/j.csda.2013.10.005