Which statement is CORRECT? More than one statement is correct. Macro-policy makers two main policy instruments-monetary and fiscal policy-have a significant and predictable impact on the aggregate supply curve. Adverse and beneficial shifts to the aggregate supply curve have little to no impact on the nation's macroeconomic performance. Operating the macroeconomy below its potential output, unlike operating it above potential output, has no obvious harmful consequences. Operating the macroeconomy at its potential output can keep the unemployment rate low and the inflation rate low and stable. 4Moving to the next question prevents changes to this answer. Questio