All of these explain a change in long-run aggregate supply EXCEPT: changes in government spending increases in the economy. Information technology (IT) can boost efficiency in nearly everything: Markets are more efficient, an demand and aggregate supply curves of the economy be is little IT improves the design, manufacture, and supply chain of products produced. How would the impact of IT on the aggregate represented? O The long-run aggregate supply curve would shift to the right. e The long-run aggregate supply curve would shift to the left. O The aggregate demand curve would shift to the right O The aggregate demand curve would shift to the left shift of the curves. which of these s is true about shifts in aggregate demand and short-run aggregate supply) O If aggregate demand shifts left, the result will be a higher price level. O If aggregate supply shifts left, the result will be a lower price level. O If aggregate demand shifts left, the result will be a lower price level. O If aggregate supply shifts left, the result will be that the price level will not change. O Cost-push inflation causes a decline in output, an increase in price level, and an increase in unemployment During cost-push inflation, output increases and the price level decreases making it hard for producers to make money. Policymakers only have to increase aggregate demand to reduce inflation.