Testing Instantaneous Causality in Presence of Nonconstant Unconditional Covariance

Quentin Giai Gianetto, Hamdi Raïssi

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

3 Citas (Scopus)


This article investigates the problem of testing instantaneous causality between vector autoregressive (VAR) variables with time-varying unconditional covariance. It is underlined that the standard test does not control the Type I errors, while the tests with White and heteroscedastic autocorrelation consistent (HAC) corrections can suffer from a severe loss of power when the covariance is not constant. Consequently, we propose a modified test based on a bootstrap procedure. We illustrate the relevance of the modified test through a simulation study. The tests considered in this article are also compared by investigating the instantaneous causality relations between U.S. macroeconomic variables.

Idioma originalInglés
Páginas (desde-hasta)46-53
Número de páginas8
PublicaciónJournal of Business and Economic Statistics
EstadoPublicada - 2 ene. 2015
Publicado de forma externa


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