Answer: Demand-pull inflation starts with an increase in aggregate demand. This increase can arise by increases in the quantity of money, increases in government expenditure, or increases in net exports because any of these three shift increase aggregate demand and shift the AD curve rightward. The increase in aggregate demand leads to a higher price level and, temporarily, a higher level of real GDP. If the economy began at full employment, then temporarily the level of real GDP will be above potential. In the long run, however, the money wage rate rises to offset the increase in the price level, so the short-run aggregate supply decreases and the SAS curve shifts leftward. The decrease in aggregate supply also raises the price level. So the only way the inflation can continue is if aggregate demand continues to increase.
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ReplyDeleteDemand-pull inflation starts with an increase in aggregate demand. This increase can arise by increases in the quantity of money, increases in government expenditure, or increases in net exports because any of these three shift increase aggregate demand and shift the AD curve rightward. The increase in aggregate demand leads to a higher price level and, temporarily, a higher level of real GDP. If the economy began at full employment, then temporarily the level of real GDP will be above potential. In the long run, however, the money wage rate rises to offset the increase in the price level, so the short-run aggregate supply decreases and the SAS curve shifts leftward. The decrease in aggregate supply also raises the price level. So the only way the inflation can continue is if aggregate demand continues to increase.