Scalable inference for a full multivariate stochastic volatility model
نویسندگان
چکیده
We introduce a multivariate stochastic volatility model that imposes no restrictions on the structure of matrix and treats all its elements as functions latent processes. Inference is achieved via carefully designed feasible scalable MCMC has quadratic, rather than cubic, computational complexity for evaluating normal densities required. illustrate how our can be applied macroeconomic applications through VAR model, comparing it to competing approaches in literature. also demonstrate approach large dataset containing 571 stock daily returns Euro STOXX index.
منابع مشابه
A Multivariate Stochastic Volatility Model
Anastasios Plataniotis and Petros Dellaportas [email protected] [email protected] Department of Statistics, Athens University of Economics and Business, Greece Summary: We introduce a broad class of multivariate stochastic volatility models where transformed eigenvalues and Givens rotation angles are assumed to be AR(1) processes. This decomposition retains the required positive definite structure of...
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ژورنال
عنوان ژورنال: Journal of Econometrics
سال: 2023
ISSN: ['1872-6895', '0304-4076']
DOI: https://doi.org/10.1016/j.jeconom.2021.09.013