(1) Assume that the longrun aggregate supply curve is vertical at Y : 3, 000 While the shortrun aggregate supply curve is horizontal at P : 1.0. The aggregate demand curve is Y : 3(M/P) and M : 1,000. (a) If the economy is initially in longrun equilibrium, What are the values of P and Y? (b) Now suppose a supply shock moves the shortrun aggregate supply curve to P : 1.5. What are the new shortrun P and Y? (c) If the aggregate demand curve and longrun aggregate supply curve are unchanged, What are the longrun equilibrium P and Y after the supply shock