In this paper we propose Granger (non-)causality tests based on a VAR model allowing for time-varying coefficients. The functional form of the time-varying coefficients is a Logistic Smooth Transition Autoregressive (LSTAR) model using time as the transition variable. The model allows for...

The main purpose of this paper is to describe South Africa's money supply process along several competing, but not mutually exclusive, theoretical paradigms over the period 1966-1997. The most important conclusion to be drawn from the empirical results is that irrespective of the monetary system...