2. What role do imports play in aggregate demand?Under which conditions will changes in imports expandaggregate demand? Reduce aggregate demand?3. Identify factors that would cause consumptionspending to increase. What effect would that have onaggregate demand?4. In the context of the AD-AS framework, illustrate anddiscuss:1. Demand-pull inflation.2. Cost-push inflation.5. Explain and demonstrate graphically (a) arecessionary gap (contractionary gap) and (b) aninflationary gap.