Money Supply M/B=(C+D)/(C+R) M/B=(cr+1)/(cr rr) M=[(cr+1)/(cr rr]B M=m*B m the money multiplierMoney Supply M/B = (C+D) / (C+R) M/B = (cr+1) / (cr + rr) M = [(cr+1) / (cr + rr)]*B M = m * B m: the money multiplier