Large time-varying parameter VARs

Gary Koop and Dimitris Korobilis

MPRA Paper from University Library of Munich, Germany

Abstract: In this paper we develop methods for estimation and forecasting in large time-varying parameter vector autoregressive models (TVP-VARs). To overcome computational constraints with likelihood-based estimation of large systems, we rely on Kalman filter estimation with forgetting factors. We also draw on ideas from the dynamic model averaging literature and extend the TVP-VAR so that its dimension can change over time. A final extension lies in the development of a new method for estimating, in a time-varying manner, the parameter(s) of the shrinkage priors commonly-used with large VARs. These extensions are operationalized through the use of forgetting factor methods and are, thus, computationally simple. An empirical application involving forecasting inflation, real output, and interest rates demonstrates the feasibility and usefulness of our approach.

Keywords: Bayesian VAR; forecasting; time-varying coefficients; state-space model (search for similar items in EconPapers)
JEL-codes: C11 C52 E27 E37 (search for similar items in EconPapers)
Date: 2012-02-28
New Economics Papers: this item is included in nep-ets and nep-for
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (50)

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Related works:
Journal Article: Large time-varying parameter VARs (2013)
Working Paper: Large Time-Varying Parameter VARs (2012)
Working Paper: Large time-varying parameter VARs (2012)
Working Paper: Large Time-Varying Parameter VARs (2012)
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Persistent link: https://EconPapers.repec.org/RePEc:pra:mprapa:38591

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