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 = 1.0. The aggregate demand curve is Y = 2(M/P) and M = 1,500.
a. If the economy is initially in long-run equilibrium, what are the values of P and Y?
b. If M increases to 2,000, what are the new short-run values of P and Y?
c. Once the economy adjusts to long-run equilibrium at M = 2,000, what are P and Y?

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The Answer of 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 = 1.0. The aggregate demand curve is Y = 2(M/P) and M = 1,500.
a. If the economy is initially in long-run equilibrium, what are the values of P and Y?
b. If M increases to 2,000, what are the new short-run values of P and Y?
c. Once the economy adjusts to long-run equilibrium at M = 2,000, what are P and Y?

Assume That the Long-Run Aggregate Supply Curve Is Vertical at Y