4. (30 points, 15 points each) Analyze the short-run (the price level is fixed) and the long-run (general equilibrium) effects of each of the following on the level of output, the real interest rate, and the price level. Illustrate your analysis graphically in two ways: (1) in an IS-LM-FE framework, and (2) in an aggregate demand-aggregate supple framework. (a) The expected rate of inflation increases. (b) Consumers decrease their desired level of consumption at each level of income and the real interest rate