DSGE-SVt: An Econometric Toolkit for High-Dimensional DSGE Models with SV and t Errors

Siddhartha Chib (), Minchul Shin and Fei Tan ()
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Siddhartha Chib: https://olin.wustl.edu/faculty/siddhartha-chib

No 21-02, Working Papers from Federal Reserve Bank of Philadelphia

Abstract: Currently, there is growing interest in dynamic stochastic general equilibrium (DSGE) models that have more parameters, endogenous variables, exogenous shocks, and observables than the Smets and Wouters (2007) model, and substantial additional complexities from non-Gaussian distributions and the incorporation of time-varying volatility. The popular DYNARE software package, which has proved useful for small and medium-scale models is, however, not capable of handling such models, thus inhibiting the formulation and estimation of more re-alistic DSGE models. A primary goal of this paper is to introduce a user-friendly MATLAB software program designed to reliably estimate high-dimensional DSGE models. It simulates the posterior distribution by the tailored random block Metropolis-Hastings (TaRB-MH) algo-rithm of Chib and Ramamurthy (2010), calculates the marginal likelihood by the method of Chib (1995) and Chib and Jeliazkov (2001), and includes various post-estimation tools that are important for policy analysis, for example, functions for generating point and density forecasts. Another goal is to provide pointers on the prior, estimation, and comparison of these DSGE models. An extended version of the new Keynesian model of Leeper, Traum, and Walker (2017) that has 51 parameters, 21 endogenous variables, 8 exogenous shocks, 8 observables, and 1,494 non-Gaussian and nonlinear latent variables is considered in detail.

Keywords: Bayesian inference; Marginal likelihood; Tailored proposal densities; Random blocks; Student-t shocks; Stochastic volatility. (search for similar items in EconPapers)
JEL-codes: C11 C15 C32 E37 E63 (search for similar items in EconPapers)
Pages: 50
Date: 2021-01-04
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Journal Article: DSGE-SVt: An Econometric Toolkit for High-Dimensional DSGE Models with SV and t Errors (2023)
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DOI: 10.21799/frbp.wp.2021.02

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