“…One of the issues that has received widespread attention by researchers has been concerned with modelling money demand using low frequency data for relatively long sample periods, although long samples may potentially be inappropriate because of regime shifts, financial innovation and structural changes, hence requiring particularly careful testing and modelling procedures (e.g. see Friedman and Schwartz, 1982;Hendry and Ericsson, 1991a,b;Laidler, 1993Laidler, , 1997Siklos, 1993;Muscatelli and Spinelli, 1996;Bordo et al, 1997;Bordo and Jonung, 1998;Ericsson et al, 1998).…”