Multiple Choice Question Once a recession has occurred, as nominal wages and the costs of other resources fall eventually,: Multiple choice question. the aggregate supply curve shifts to the right the price level falls and real GDP returns to the full employment level. the aggregate demand curve shifts to the right the price level rises and real GDP returns to the full employment level. the aggregate demand curve shifts to the left the price level falls and real GDP returns to the full employment level. the aggregate supply curve shifts to the left the price level falls and real GDP returns to the full employment level