an economy is in long-run macroeconomic equilibrium with an unemployment rate equal to the natural rate of 5% when the government passes a law requiring the central bank to use monetary policy to lower the unemployment rate to 3% and keep it there. a. the central bank can achieve this goal in the short run by pursuing monetary policy. b. in the accompanying diagrams, shift the ad, lras, and/or sras curves and move the equilibrium point to its new position to illustrate the short-run and long-run changes when the central bank pursues this policy.