If the central bank changes its monetary policy rule from A to B as shown in Exhibit 24-3, Exhibit 24-3 Inflation 0 2 4 6 8 Interest Rate Policy Rule A 0.5 4 7.5 11 14.5 Interest Rate Policy Rule B 1.5 5 8.5 12 15.5 the AD curve will shift to the left. there will be a downward movement along the AD curve. there will be no change since the real rate of interest does not change. the AD curve will shift to the right. there will be an upward movement along the AD curve.