Consider the aggregate demand/aggregate supply model of Chapter 10. Assume that the long-run aggregate supply curve is vertical at Y = 3,000 while the short-run aggregate supply curve is horizontal at P = 2. The aggregate demand curve is given by Y = MV(1/P), with M = 6,000 and V=1.

a) Suppose that there is an adverse supply shock that shifts the short-run supply curve upwards, to P = 3. What are the values of P and Y in the short-run equilibrium after this shock?

b) What changes (if any) in the values of P and Y would take place going from the short-run equilibrium of part A to the long run (assuming no other shocks occur)?

c) If the FED wants to avoid any changes in the level of Y as a response to the supply shock, what should be the change in the quantity of money M?