Testing Subspace Granger Causality

• BSE Working Paper: 850 | November 15
• Keywords: Okun's law , Granger causality , rank testing , VAR model , policy trade-offs
• JEL codes: C12, C13, C15, C32, C53, E3, E4, E52
• Okun's law
• Granger causality
• rank testing
• VAR model
• policy trade-offs

The methodology of multivariate Granger non-causality testing at various horizons is extended to allow for inference on its directionality. This paper presents empirical manifestations of these subspaces and provides useful interpretations for them. It then proposes methods for estimating these subspaces and finding their dimensions utilizing simple vector autoregressive models. The methodology is illustrated by an application to empirical monetary policy.