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Hierarchical shrinkage in time-varying parameter models

Belmonte, MAG and Koop, G and Korobilis, D (2014) 'Hierarchical shrinkage in time-varying parameter models.' Journal of Forecasting, 33 (1). 80 - 94. ISSN 0277-6693

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Abstract

In this paper, we forecast EU area inflation with many predictors using time-varying parameter models. The facts that time-varying parameter models are parameter rich and the time span of our data is relatively short motivate a desire for shrinkage. In constant coefficient regression models, the Bayesian Lasso is gaining increasing popularity as an effective tool for achieving such shrinkage. In this paper, we develop econometric methods for using the Bayesian Lasso with time-varying parameter models. Our approach allows for the coefficient on each predictor to be: (i) time varying; (ii) constant over time; or (iii) shrunk to zero. The econometric methodology decides automatically to which category each coefficient belongs. Our empirical results indicate the benefits of such an approach. © 2013 John Wiley & Sons, Ltd.

Item Type: Article
Subjects: H Social Sciences > HB Economic Theory
Divisions: Faculty of Social Sciences > Essex Business School > Essex Finance Centre
Depositing User: Jim Jamieson
Date Deposited: 23 Nov 2016 12:05
Last Modified: 07 Aug 2019 21:15
URI: http://repository.essex.ac.uk/id/eprint/17949

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