(a) In the short run, an increase in the price of oil would shift the short-run aggregate supply (SRAS) curve to the left. This is because oil is a major input in production, and an increase in its price raises the cost of production for businesses, reducing the quantity of goods and services they are willing to produce at any given price level. This results in a higher overall price level (inflation) and a lower real GDP.

(b) If a central bank is primarily concerned with maintaining the price level, it would likely respond to the oil price increase by raising the cash rate. This would decrease aggregate demand (AD), as it makes borrowing more expensive and saving more attractive, reducing spending. The AD curve would shift to the left, lowering the price level and real GDP.

(c) If the central bank is primarily concerned with keeping unemployment at the natural rate, it might lower the cash rate to stimulate economic activity and prevent a rise in unemployment. This would shift the AD curve to the right, increasing both the price level and real GDP.

(d) In the long run, if the central bank took no action, the economy would adjust on its own. The high price level would eventually lead to higher wages, which would further increase production costs and shift the SRAS curve to the left. However, this would also make unemployment rise, which would put downward pressure on wages and shift the SRAS curve back to the right. The economy would eventually return to its natural rate of unemployment and potential GDP, but with a higher price level.

(e) The most appropriate monetary policy depends on the specific circumstances and the central bank's priorities. If the central bank prioritizes price stability, it might choose to raise the cash rate to combat inflation. If it prioritizes employment, it might choose to lower the cash rate to stimulate economic activity. However, these actions can have trade-offs, such as potentially causing a recession or inflation, respectively. Therefore, the central bank would need to carefully consider the potential consequences of its actions.

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(a) In the short run, an increase in the price of oil would shift the short-run aggregate supply (SRAS) curve to the left. This is because oil is a major input in production, and an increase in its price raises the cost of production for businesses, reducing the quantity of goods and services they are willing to produce at any given price level. This results in a higher overall price level (inflation) and a lower real GDP.

(b) If a central bank is primarily concerned with maintaining the price level, it would likely respond to the oil price increase by raising the cash rate. This would decrease aggregate demand (AD), as it makes borrowing more expensive and saving more attractive, reducing spending. The AD curve would shift to the left, lowering the price level and real GDP.

(c) If the central bank is primarily concerned with keeping unemployment at the natural rate, it might lower the cash rate to stimulate economic activity and prevent a rise in unemployment. This would shift the AD curve to the right, increasing both the price level and real GDP.

(d) In the long run, if the central bank took no action, the economy would adjust on its own. The high price level would eventually lead to higher wages, which would further increase production costs and shift the SRAS curve to the left. However, this would also make unemployment rise, which would put downward pressure on wages and shift the SRAS curve back to the right. The economy would eventually return to its natural rate of unemployment and potential GDP, but with a higher price level.

(e) The most appropriate monetary policy depends on the specific circumstances and the central bank's priorities. If the central bank prioritizes price stability, it might choose to raise the cash rate to combat inflation. If it prioritizes employment, it might choose to lower the cash rate to stimulate economic activity. However, these actions can have trade-offs, such as potentially causing a recession or inflation, respectively. Therefore, the central bank would need to carefully consider the potential consequences of its actions.

Knowee AI · Accepted Answer

(a) In the short run, an increase in the price of oil would shift the short-run aggregate supply (SRAS) curve to the left. This is because oil is a major input in production, and an increase in its price raises the cost of production for businesses, reducing the quantity of goods and services they are willing to produce at any given price level. This results in a higher overall price level (inflation) and a lower real GDP.

(b) If a central bank is primarily concerned with maintaining the price level, it would likely respond to the oil price increase by raising the cash rate. This would decrease aggregate demand (AD), as it makes borrowing more expensive and saving more attractive, reducing spending. The AD curve would shift to the left, lowering the price level and real GDP.

(c) If the central bank is primarily concerned with keeping unemployment at the natural rate, it might lower the cash rate to stimulate economic activity and prevent a rise in unemployment. This would shift the AD curve to the right, increasing both the price level and real GDP.

(d) In the long run, if the central bank took no action, the economy would adjust on its own. The high price level would eventually lead to higher wages, which would further increase production costs and shift the SRAS curve to the left. However, this would also make unemployment rise, which would put downward pressure on wages and shift the SRAS curve back to the right. The economy would eventually return to its natural rate of unemployment and potential GDP, but with a higher price level.

(e) The most appropriate monetary policy depends on the specific circumstances and the central bank's priorities. If the central bank prioritizes price stability, it might choose to raise the cash rate to combat inflation. If it prioritizes employment, it might choose to lower the cash rate to stimulate economic activity. However, these actions can have trade-offs, such as potentially causing a recession or inflation, respectively. Therefore, the central bank would need to carefully consider the potential consequences of its actions.

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