Aggregate supply (AS)：練習問題

Which of the following is most likely to cause a leftward shift of the Short-Run Aggregate Supply (SRAS) curve?

In a classical long-run aggregate supply (LRAS) model, what is the most likely effect of a sustained increase in the net migration of skilled workers into an economy?

Consider an economy initially in long-run equilibrium. If there is a simultaneous increase in the international price of oil and a decrease in consumer confidence, what is the predicted short-run effect on the price level and real GDP?

The diagram shows a rightward shift of the Short-Run Aggregate Supply (SRAS) curve from \(SRAS_{1}\) to \(SRAS_{2}\). Which of the following is the most likely cause of this shift?

A Keynesian Long-Run Aggregate Supply (LRAS) curve is horizontal at low levels of real output. Which of the following best explains this shape?

In a diagram of the Keynesian Long-run Aggregate Supply (LRAS) curve, explain why the curve is horizontal at low levels of real national output.

Assume an economy is currently in long-run equilibrium at the full employment level of output. A sudden increase in the global price of oil significantly increases production costs for firms.
(a) Explain the difference between a movement along and a shift of the Short-run Aggregate Supply (SRAS) curve in this context.
(b) Evaluate the impact of this supply-side shock on the price level and real output. Support your answer with a diagram showing the transition from the initial equilibrium to the new equilibrium.