Vector Autoregression and Causality: A Theoretical Overview and Simulation Study

Hiro Y. Toda and Peter Phillips
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Hiro Y. Toda: Cowles Foundation, Yale University, https://cowles.yale.edu/

No 1001, Cowles Foundation Discussion Papers from Cowles Foundation for Research in Economics, Yale University

Abstract: This paper provides a theoretical overview of Wald tests for Granger causality in levels vector autoregressions (VAR's) and Johansen-type error correction models (ECM's) for VAR models the results for inference are not encouraging. The limit theory typically involves nonstandard distributions and nuisance parameters, and there is no sound statistical basis for testing causality in such a framework. Granger causality tests in ECM's also suffer from nuisance parameter dependencies asymptotically and nonstandard limit theory. But, in spite of these difficulties Johansen-type ECM's do offer a sound basis for empirical testing of the rank of the cointegration space and the rank of key submatrices that influence the asymptotics. In consequence, we recommend some operational procedures for conducting Granger causality tests in the important practical case of testing the causal effects of one variable on another group of variables and vice versa.

Keywords: Error correction models; Granger causality; Wald test cointegration; vector autoregression (search for similar items in EconPapers)
JEL-codes: C12 C32 (search for similar items in EconPapers)
Pages: 42 pages
Date: 1991-10
Note: CFP 890.
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (17)

Published in Econometric Reviews (1994), 13(2): 259-285

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