“…Although an increase of money supply (a positive money supply growth rate) is associated with a decrease in the interest rate and hence an expansive monetary policy, money supply has not been generally used as a good indicator of different monetary policy developments because of its frequent changes (Jensen and Johnson, 1995;Jensen et al, 1996;Johnson and Jensen, 1998;Conover et al, 1999;Johnson et al, 2003;Mann et al, 2004;Chen et al, 2006a, b). Different from the monetary policy variables utilized in Barrows and Naka (1994) and Chen et al (2005), we employed changes in the discount rate as the measure of monetary environment stringency exploited by Jensen et al (1996) and Johnson and Jensen (1998).…”