Subpart (a):
Long run equilibrium in AD-AS model.
Subpart (a):
Explanation of Solution
The supply depends upon the price level in the economy. When the price level is higher, the suppliers will be receiving higher income and this would incentivize them to increase the supply in the economy and vice versa. The aggregation of the supply curves of all the firms in the economy is known as the
The
The equilibrium is a condition where the aggregate demand curve of the economy intersects with the aggregate supply curve of the economy. Then there will be an equilibrium point derived where the economy will be in its equilibrium without any excess demand or supply. The quantity on the X axis will represent the
Concept introduction:
Aggregate demand curve: It is the curve which shows the relationship between the price level in the economy and the quantity of real GDP demanded by the economic agents such as the households, firms as well as the government.
Equilibrium: The equilibrium in the economy is the point where the economy's aggregate demand curve and the aggregate supply curve intersects with each other. There will be no excess demand or
Subpart (b):
Long run equilibrium in AD-AS model.
Subpart (b):
Explanation of Solution
When the money supply of the economy increases with the intervention of the Central Bank of the economy, the money with the public will increase. When the money with the public increases, they will feel wealthier and as a result they will demand more consumer goods and services. As a result, the aggregate demand of the economy increases and it will shift the AD curve towards the right. This can be identified as the change to the equilibrium point B as shown in Figure 1. Thus, in short, the increase in the money supply leads to the increase in the output and price level of the economy.
Concept introduction:
Aggregate demand curve: It is the curve which shows the relationship between the price level in the economy and the quantity of real GDP demanded by the economic agents such as the households, firms as well as the government.
Aggregate supply curve: In the short run, it is a curve which shows the relationship between the price level in the economy and the supply in the economy by the firms. In the long run, it shows the relationship between the price level and the level of quantity supplied by the firms.
Equilibrium: The equilibrium in the economy is the point where the economy's aggregate demand curve and the aggregate supply curve intersects with each other. There will be no excess demand or excess supply in the economy at the equilibrium.
Subpart (c):
Long run equilibrium in AD-AS model.
Subpart (c):
Explanation of Solution
When the AD curve shifts towards the right and increases the output and the price level in the short run, over time, the nominal wages, prices as well as the perceptions and expectations of the economy would adjust to the new equilibrium level. As a result of this gradual adjustment, the cost of production will increase and the result will be a leftward shift in the aggregate supply curve of the economy. Then the economy will return to its natural level of output at a higher price level of the economy. This can be identified as the movement from point B to point C in the graph shown above.
Concept introduction:
Aggregate demand curve: It is the curve which shows the relationship between the price level in the economy and the quantity of real GDP demanded by the economic agents such as the households, firms as well as the government.
Aggregate supply curve: In the short run, it is a curve which shows the relationship between the price level in the economy and the supply in the economy by the firms. In the long run, it shows the relationship between the price level and the level of quantity supplied by the firms.
Equilibrium: The equilibrium in the economy is the point where the economy's aggregate demand curve and the aggregate supply curve intersects with each other. There will be no excess demand or excess supply in the economy at the equilibrium.
Subpart (d):
Long run equilibrium in AD-AS model.
Subpart (d):
Explanation of Solution
The sticky wages theory suggests that when there is inflation in the economy, the wage rate will adjust very slowly to the inflation. More or less the wage rates will be sticky and the main reason will be the long term contracts between the employer and the employees. Thus, in the short run equilibriums such as point A and point B, the wages of the economy would be more or less equal to each other. Whereas the point C represents the long run equilibrium and thus, the wages at the point C will be higher than that in point A and B.
Concept introduction:
Aggregate demand curve: It is the curve which shows the relationship between the price level in the economy and the quantity of real GDP demanded by the economic agents such as the households, firms as well as the government.
Aggregate supply curve: In the short run, it is a curve which shows the relationship between the price level in the economy and the supply in the economy by the firms. In the long run, it shows the relationship between the price level and the level of quantity supplied by the firms.
Equilibrium: The equilibrium in the economy is the point where the economy's aggregate demand curve and the aggregate supply curve intersects with each other. There will be no excess demand or excess supply in the economy at the equilibrium.
Subpart (e):
Long run equilibrium in AD-AS model.
Subpart (e):
Explanation of Solution
The sticky wages theory suggests that when there is inflation in the economy, the wage rate will adjust very slowly to the inflation. More or less, the wage rates will be sticky and the main reason will be the long term contracts between the employer and the employees. So, the nominal wages at equilibrium point A and B will be same. But the increase in the general price level in the economy would reduce the real wages of the workers because, the real wage is the nominal wage divided by the price level. When the denominator increases, it will reduce the value of the real wages in the economy.
Concept introduction:
Aggregate demand curve: It is the curve which shows the relationship between the price level in the economy and the quantity of real GDP demanded by the economic agents such as the households, firms as well as the government.
Aggregate supply curve: In the short run, it is a curve which shows the relationship between the price level in the economy and the supply in the economy by the firms. In the long run, it shows the relationship between the price level and the level of quantity supplied by the firms.
Equilibrium: The equilibrium in the economy is the point where the economy's aggregate demand curve and the aggregate supply curve intersects with each other. There will be no excess demand or excess supply in the economy at the equilibrium.
Sub part (f):
Long run equilibrium in AD-AS model.
Sub part (f):
Explanation of Solution
When the increase in the money supply happens in the economy, it will lead to the increase in the nominal wages as well as the price level in the economy in the long run. As a result of the increase in the nominal wage rate along with the price level in the economy, the real wage rate of the economy would remain unchanged. Thus, the neutrality of money applies in the long run equilibrium.
Concept introduction:
Aggregate demand curve: It is the curve which shows the relationship between the price level in the economy and the quantity of real GDP demanded by the economic agents such as the households, firms as well as the government.
Aggregate supply curve: In the short run, it is a curve which shows the relationship between the price level in the economy and the supply in the economy by the firms. In the long run, it shows the relationship between the price level and the level of quantity supplied by the firms.
Equilibrium: The equilibrium in the economy is the point where the economy's aggregate demand curve and the aggregate supply curve intersects with each other. There will be no excess demand or excess supply in the economy at the equilibrium.
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Chapter 33 Solutions
Principles of Economics, 7th Edition (MindTap Course List)
- Now suppose that a boom in stock market causes aggregate demand to rise. Use your diagram to show what happens to output and the price level in the short run. What happens to the unemployment rate? Draw a diagram to illustrate the state of the economy. Be sure to show aggregate demand, short-run aggregate supply, and long-run aggregate supply.arrow_forwardDoes each scenario below cause a movement along the curve or a shift in the curve? Explain using the model of Aggregate Demand and Aggregate Supply. [1] Consumers in the U.S. read negative economic news and they expect weak future economic growth. [2] Due to the decrease in the price level in the U.S., consumers substitute out of clothes made overseas into clothes made in the US. [3] An increase in the price level leads to less savings, which increases the interest rate. [4] Several European economies go into recession due to the current pandemic.arrow_forwardI don't quite understand what is asking of the change that will occur in the long runarrow_forward
- The graphs illustrate an initial equilibrium for the economy. Suppose that the Federal Reserve raises interest rates. Use the graphs to show the new positions of aggregate demand (AD), short-run aggregate supply (SRAS), and long-run aggregate supply (LRAS) in both the short run and the long run, as well as the short-run and long-run equilibriums resulting from this change. Then, indicate what happens to the price level and GDP in the short run and in the long run. Aggregate price level Short-run graph GDP In the short run, the price level LRAS Real GDP SRAS Short-run equilibrium AD and Aggregate price level Long-run graph LRAS Real GDP In the long run, the price level GDP SRAS Long-run equilibrium AD andarrow_forwardSuppose the economy is in a long-run equilibrium a)Draw a diagram to illustrate the state of the economy . Be sure to show aggregate demand, short-run aggregate supply, and long-run aggregate supply. b) The federal government increases spending on national defense. c) A technological improvement raises productivityarrow_forwardSolve the attachment.arrow_forward
- The following events shift either aggregate demand, aggregate supply, both or neither. Using a diagram, illustrate the effect of the events on the economy. In particular, explain the effect of each event on price level, real GDP and equilibrium in the economy. A) A recent business survey reported that business confidence has declined. B) Government cuts the rate of personal income tax after a pandemic caused an economic slowdown. C) A recent flooding in a small rural region destroyed the potato crop. D) A booming economy in a neighbouring country has drawn many working age people (and their families) to emigrate there in search of jobs and better life.arrow_forwardThe following events shift either aggregate demand, aggregate supply, both or neither. Using a diagram, illustrate the effect of the events on the economy. In particular, explain the effect of each event on price level, real GDP and equilibrium in the economy. A) A recent business survey reported that business confidence has declined. B) Government cuts the rate of personal income tax after a pandemic caused an economic slowdown. C) A recent flooding in a small rural region destroyed the potato crop.arrow_forwardStarting from long run equilibrium,  use the basic aggregate demand and aggregate supply diagram to show what happens in both the long run and short run when there is a decline in wealth. Why does the economy move back to full employment?arrow_forward
- Suppose the economy is in a situation of moderate unemployment, and then an exogenous increase of aggregate demand occurs. (Assume the aggregate demand schedule follows the pattern set out by the mainstream story.) Use short run aggregate supply and aggregate demand analysis to discuss in detail the effects of this demand change on the price level and real GDP in the short run. Explain how the situation could change in the long run after the happenings in the first part.arrow_forwardUsing aggregate demand and aggregate supply, graph the effects on the price level and GDP of each of the following. Draw a large graph and label all axes, initial and final equilibrium points, direction of shift if any, all curves and lines, equilibrium values on the x- and y-axes. State the conclusion in words. a. A cut in income taxes b. An increase in military spending c. A drop in export demand by foreign purchasers d. An increase in imports e. A decline in business investment spendingarrow_forwardQUESTION 4 Chapter 14 Suppose economy is in long run equilibrium. [Only one diagram is required for this question, draw and label clearly to show all relevant points and moves, if more than one diagrams are drawn for this question, I will give a zero grade for this question] a. Use the model of aggregate demand and aggregate supply to illustrate the initial equilibrium (call it point A). Be sure to include both-short run and long-run aggregate supply. b. The central bank raises the money supply by 10%. Use the diagram you drew in part a) to show what happens to output and price level as the economy moves from initial equilibrium A to the new short-run equilibrium (call it point B). Explain all the details about the changes that happen due to increase in money supply and how these changes affect the model. c. Show how economy moves from the short run equilibrium (point B) to the new long- run equilibrium (call it C) and explain why it moves to C. d. According to sticky wage theory of…arrow_forward
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