Title: A Gibbs Sampler for Structural Vector Autoregressions
Author: Waggoner, Daniel F.; Zha, Tao
Author Affiliation: Federal Reserve Bank of Atlanta
Source: Journal of Economic Dynamics and Control, November 2003, v. 28, iss. 2, pp. 349-66
Publication Date: November 2003
Abstract: Structural VAR modeling has played an important role in empirical macroeconomics. The importance sampler used in the existing literature, however, can be prohibitively inefficient for obtaining accurate finite-sample inferences. In this paper we develop a Gibbs sampler for Bayesian inferences of structural VARs that restrict the covariance matrix of reduced-form residuals. Our method is computationally efficient in comparison to the existing method and can be readily applied. We show, by examples, that inferences based on the importance sampler can seriously distort economic interpretations.
Descriptors: Econometric Methods: Multiple/Simultaneous Equation Models: Time-Series Models
Keywords: Autoregression; Reduced Form; VAR
ISSN: 01651889
Publication Type: Journal Article
Availability: http://www.elsevier.com/inca/publications/store/5/0/5/5/4/7/