The economy of Beta is in a recession.
(a) Draw a single correctly labeled graph with both the short-run and long-run Phillips curves. Label the initial short-run equilibrium as point X.
(b) Identify a combination of fiscal and monetary policy actions that can be used to restore full employment.
(c) Draw a correctly labeled graph of the money market and show the effect of the monetary policy action identified in part (b) on the equilibrium nominal interest rate.
(d) Based on the change in the equilibrium nominal interest rate identified in part (c), what will happen to aggregate demand in the short run? Explain.
(e) On your graph in part (a), label a point Z that shows the effect of the change in aggregate demand identified in part (d).
(f) Now assume the economy is in long-run equilibrium. If the central bank pursues a policy of increasing the money supply at an annual rate of 5 percent, what will happen to inflation and real output in the long run? Explain using the quantity theory of money.
(g) Identify one supply-side fiscal policy action the government of Beta can use to promote economic growth.
Can someone help me out with questions (e) (f) and (g)?
The correct answer and explanation is :
Let’s break down questions (e), (f), and (g) step-by-step to help you understand the concepts and provide detailed explanations.
(e) Label a point Z on the graph showing the effect of the change in aggregate demand identified in part (d).
In part (d), we discussed that the monetary policy action, which typically involves lowering interest rates, will increase aggregate demand (AD). This is because lower interest rates encourage investment and consumption, which leads to higher demand for goods and services.
On the graph from part (a), the short-run Phillips Curve shows an inverse relationship between inflation and unemployment. Initially, the economy is in a recession, meaning it is below full employment, and unemployment is high.
When aggregate demand increases (as a result of the monetary policy in part (b)), it will lead to higher output and employment, which reduces unemployment. On the graph, the point Z should be placed to the right of point X, indicating a movement towards a lower unemployment rate and a potential increase in inflation, depending on the magnitude of the shift in AD. This reflects the new short-run equilibrium where the economy is moving towards full employment but might face some inflationary pressure.
(f) Long-Run Effects of Increasing the Money Supply at 5% Per Year (Quantity Theory of Money)
In the long run, if the central bank increases the money supply by 5% annually, inflation will increase, but real output will not change. According to the quantity theory of money, this is because, in the long run, the real output is determined by factors like technology, capital, and labor, not by the money supply.
The quantity theory of money is expressed by the equation:
[ M \times V = P \times Y ]
Where:
- ( M ) is the money supply
- ( V ) is the velocity of money (how quickly money circulates)
- ( P ) is the price level (inflation)
- ( Y ) is real output (real GDP)
In the long run, the velocity of money and real output are relatively stable. Therefore, if the central bank increases ( M ) (money supply), it will cause an increase in ( P ) (inflation), but ( Y ) (real output) will stay the same in the long run. This happens because workers and businesses eventually adjust to the higher inflation, and the economy returns to its potential output, but at a higher price level.
(g) Supply-Side Fiscal Policy to Promote Economic Growth
To promote economic growth, a supply-side fiscal policy would focus on increasing the productive capacity of the economy. One key policy could be reducing business taxes or providing tax incentives for investment.
When businesses face lower taxes or receive incentives, they are more likely to invest in capital (equipment, technology, research, etc.), which increases productivity. This boosts the economy’s potential output in the long run, leading to higher economic growth. It can also create more jobs, reducing unemployment over time.
Supply-side policies focus on increasing the economy’s productive capacity by improving the supply of labor, capital, and technology, which will shift the long-run aggregate supply curve (LRAS) to the right. This increases both real output and employment in the long term without creating inflationary pressures.
In summary:
- (e) Point Z reflects the shift in AD toward lower unemployment and potential inflation.
- (f) Increasing the money supply in the long run leads to higher inflation but no change in real output.
- (g) A supply-side fiscal policy like cutting business taxes can promote long-term economic growth by boosting investment and productivity.