Macroeconomics
21st Edition
ISBN: 9781259915673
Author: Campbell R. McConnell, Stanley L. Brue, Sean Masaki Flynn Dr.
Publisher: McGraw-Hill Education
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Question
Chapter 12.A, Problem 2AP
To determine
Aggregate Demand Shifts and the Aggregate Expenditure Model.
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Consider a hypothetical economy in which households spend $0.75 of each additional dollar they earn and save the remaining $0.25. The following
graph shows the economy's initial aggregate-demand curve (AD₁).
Suppose the government increases its purchases by $3.75 billion.
Use the green line (triangle symbol) on the following graph to show the aggregate-demand curve (AD₂) after the multiplier effect takes place.
Hint: Be sure the new aggregate-demand curve (AD₂) is parallel to AD₂. You can see the slope of AD, by selecting it on the following graph.
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PRICE LEVEL
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AD
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OUTPUT (Billions of dollars)
135
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AD₂
AD₁
The following graph shows the money market in equilibrium at an interest rate of 7.5% and a quantity of money equal to $60 billion.
Suppose that there is an autonomous increase in investment spending of $20 billion and the MPC is given as 0.4, and assuming taxes, imports, and savings are all equal and there are no leakages:
How large is the spending multiplier? Use the simple multiplier equation to calculate it.
How much is the total change in GDP from this autonomous increase in investment spending?
Do you think a larger or smaller MPC would help the economy, and why? What could be some concerns about the Keynesian spending multiplier?
PRICE LEVEL
Suppose there is some hypothetical economy in which households spend $0.50 of each additional dollar they earn and save the $0.50 they have left
over. The following graph plots the economy's initial aggregate demand curve (AD₁).
Suppose now that the government increases its purchases by $2 billion.
Use the green line (triangle symbol) on the following graph to show the aggregate demand curve (AD₂) after the multiplier effect takes place.
Hint: Be sure the new aggregate demand curve (AD2) is parallel to AD1. You can see the slope of AD₁ by selecting it on the following graph.
116
114
112
110
AD₁
108
106
104
12
102
100
100
102
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106
108
110
112
114
116
38.3¢
AD 3
(?)
Chapter 12 Solutions
Macroeconomics
Ch. 12.7 - Prob. 1QQCh. 12.7 - Prob. 2QQCh. 12.7 - Prob. 3QQCh. 12.7 - Prob. 4QQCh. 12.A - Prob. 1ADQCh. 12.A - Prob. 2ADQCh. 12.A - Prob. 1ARQCh. 12.A - Prob. 2ARQCh. 12.A - Prob. 1APCh. 12.A - Prob. 2AP
Ch. 12 - Prob. 1DQCh. 12 - Prob. 2DQCh. 12 - Prob. 3DQCh. 12 - Prob. 4DQCh. 12 - Prob. 5DQCh. 12 - Prob. 6DQCh. 12 - Prob. 7DQCh. 12 - Prob. 8DQCh. 12 - Prob. 9DQCh. 12 - Prob. 1RQCh. 12 - Prob. 2RQCh. 12 - Prob. 3RQCh. 12 - Prob. 4RQCh. 12 - Prob. 5RQCh. 12 - Prob. 6RQCh. 12 - Prob. 7RQCh. 12 - Prob. 8RQCh. 12 - Prob. 9RQCh. 12 - Prob. 1PCh. 12 - Prob. 2PCh. 12 - Prob. 3PCh. 12 - Prob. 4PCh. 12 - Prob. 5P
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- Suppose there is some hypothetical economy in which households spend $0.50 of each additional dollar they earn and save the $0.50 they have left over. The following graph plots the economy's initial aggregate demand curve (AD1). Suppose now that the government increases its purchases by $2.5 billion. Use the green line (triangle symbol) on the following graph to show the aggregate demand curve (AD2) after the multiplier effect takes place. Hint: Be sure the new aggregate demand curve (AD2) is parallel to AD1. You can see the slope of AD1 by selecting it on the following graph. PRICE LEVEL 116 114 112 110 108 106 104 102 100 100 AD₁ 1 102 106 108 110 OUTPUT (Billions of dollars) 104 112 114 116 þ } AD2 AD 3arrow_forwardSuppose there is some hypothetical economy in which households spend $0.50 of each additional dollar they earn and save the $0.50 they have left over. The following graph plots the economy's initial aggregate demand curve (AD₁). Suppose now that the government increases its purchases by $3.5 billion. Use the green line (triangle symbol) on the following graph to show the aggregate demand curve (AD₂) after the multiplier effect takes place. Hint: Be sure the new aggregate demand curve (AD₂) is parallel to AD₁. You can see the slope of AD₁ by selecting it on the following graph. PRICE LEVEL 116 114 112 110 108 106 104 102 100 100 AD 1 102 104 106 108 110 112 114 116 AD2 AD 3arrow_forwardSuppose there is some hypothetical economy in which households spend $0.50 of each additional dollar they earn and save the $0.50 they have left over. The following graph plots the economy's initial aggregate demand curve (AD₁). Suppose now that the government increases its purchases by $3.5 billion. Use the green line (triangle symbol) on the following graph to show the aggregate demand curve (AD2) after the multiplier effect takes place. Hint: Be sure the new aggregate demand curve (AD2) is parallel to AD₁. You can see the slope of AD₁ by selecting it on the following graph. PRICE LEVEL 116 114 112 110 108 106 104 102 100 100 AD1 102 106 108 110 OUTPUT (Billions of dollars) 104 112 114 1 116 AD2 AD 3 ?arrow_forward
- Suppose there is some hypothetical economy in which households spend $0.50 of each additional dollar they earn and save the $0.50 they have left over. The following graph plots the economy's initial aggregate demand curve (AD₁). Suppose now that the government increases its purchases by $3.5 billion. Use the green line (triangle symbol) on the following graph to show the aggregate demand curve (AD2) after the multiplier effect takes place. Hint: Be sure the new aggregate demand curve (AD2) is parallel to AD₁. You can see the slope of AD₁ by selecting it on the following graph. ? PRICE LEVEL 116 114 112 110 108 106 104 102 100 AD 100 1 102 104 106 108 110 OUTPUT (Billions of dollars) 112 114 116 AD2 AD 3arrow_forwardConsider a hypothetical economy in which households spend $0.75 of each additional dollar they earn and save the remaining $0.25. The following graph shows the economy's initial aggregate demand curve (AD1AD1). Suppose the government increases its purchases by $3.75 billion. Use the green line (triangle symbol) on the following graph to show the aggregate demand curve (AD2AD2) after the multiplier effect takes place. Hint: Be sure the new aggregate demand curve (AD2AD2) is parallel to AD1AD1. You can see the slope of AD1AD1 by selecting it on the following graph.arrow_forwardSuppose there is some hypothetical economy in which households spend $0.50 of each additional dollar they earn and save the $0.50 they have left over. The following graph plots the economy's initial aggregate demand curve (AD₁). Suppose now that the government increases its purchases by $3.5 billion. Use the green line (triangle symbol) on the following graph to show the aggregate demand curve (AD2) after the multiplier effect takes place. Hint: Be sure the new aggregate demand curve (AD2) is parallel to AD₁. You can see the slope of AD₁ by selecting it on the following graph. PRICE LEVEL 110 114 112 110 108 108 104 102 100 AD. 100 9 102 104 108 108 110 112 114 118 OUTPUT (Billions of dollars) ง AD₂ $ AD₂ The following graph plots equilibrium in the money market at an interest rate of 1.5% and a quantity of money equal to $45 billion.arrow_forward
- Suppose there is some hypothetical economy in which households spend $0.50 of each additional dollar they earn and save the $0.50 they have left over. The following graph plots the economy's initial aggregate demand curve (ADI). Suppose now that the government increases its purchases by $3.5 billion. Use the green line (triangle symbol) on the following graph to show the aggregate demand curve (AD) after the multiplier effect takes place. Hint: Be sure the new aggregate demand curve (AD) is parallel to AD₁. You can see the slope of AD, by selecting it on the following graph. PRICE LEVEL 116 114 112 110 108 106 104 102 AD 100 100 102 104 106 108 110 OUTPUT (Billions of dollars) 112 114 116 AD₂ | | AD₂ The following graph plots equilibrium in the money market at an interest rate of 3% and a quantity of money equal to $30 billion. Show the impact of the increase in government purchases on the interest rate by shifting one or both of the curves on the following graph. Money Supply Money…arrow_forwardConsider a hypothetical economy where there are no taxes and no foreign trade, and households spend $0.90 of each additional dollar they earn and ; the marginal propensity to save (MPS) for this save the remaining $0.10. The marginal propensity to consume (MPC) for this economy is economy is ; and the multiplier for this economy is Suppose investment spending in this economy decreases by $150 billion. The decrease in investment will lead to a decrease in income, generating a decrease in consumption that decreases income yet again, and so on. Fill in the following table to show the impact of the change in investment spending on the first two rounds of consumption spending and, eventually, on total output and income. Hint: Be sure to enter a negative sign in front of the number if there is a decrease in consumption. Change in Investment Spending = -$150 billion First Change in Consumption = $ Second Change in Consumption $ Total Change in Output = $ billion billion billion In reality,…arrow_forwardShow the impact of the increase in government purchases on the interest rate by shifting one or both of the curves on the following graph. INTEREST RATE 15.0 12.5 10.0 7.5 5.0 2.5 0 0 15 Money Supply known as the Money Demand 30 45 60 MONEY (Billions of dollars) 75 90 Money Demand Money Supply image 2 Suppose that for every increase in the interest rate of one percentage point, the level of investment spending declines by $0.5 billion. Based on the changes made to the money market in the previous scenario, the new interest rate causes the level of investment spending to by Taking the multiplier effect into account, the change in investment spending will cause the quantity of output demanded to by ▼at every price level. The impact of an increase in government purchases on the interest rate and the level of investment spending is ▼ effect. Use the purple line (diamond symbol) on the graph at the beginning of this problem to show the aggregate demand curve (AD3) after accounting for the…arrow_forward
- Consider a hypothetical economy in which households spend $0.50 of each additional dollar they earn and save the remaining $0.50. The following graph shows the economy's initial aggregate demand curve (AD1AD1). Suppose the government increases its purchases by $3 billion. Use the green line (triangle symbol) on the following graph to show the aggregate demand curve (AD2AD2) after the multiplier effect takes place. Hint: Be sure the new aggregate demand curve (AD2AD2) is parallel to AD1AD1. You can see the slope of AD1AD1 by selecting it on the following graph. Suppose that for each one-percentage-point increase in the interest rate, the level of investment spending declines by $0.5 billion. The change in the interest rate (according to the change you made to the money market in the previous scenario) therefore causes the level of investment spending to Fall/Rise by 2 ,1, or 0.5 Billion. After the multiplier effect is accounted for, the change in investment spending…arrow_forwardConsider a hypothetical economy in which households spend $0.50 of each additional dollar they earn and save the remaining $0.50. The following graph shows the economy's initial aggregate-demand curve (AD1). Suppose the government increases its purchases by $5 billion. Use the green line (triangle symbol) on the following graph to show the aggregate-demand curve (AD2) after the multiplier effect takes place.Hint: Be sure the new aggregate-demand curve (AD2) is parallel to AD1. You can see the slope of AD1 by selecting it on the following graph. NOTE: MAKE sure to adjust GRAPHS properly and plot the one that needs to have the new AGGRGATE demand curve plotted properly and MAKE SURE ITS EASY TO SEE AND READ PLEASE!!!!!! NOTE: here are the blank question options Suppose that for each one-percentage-point increase in the interest rate, the level of investment spending declines by $0.5 billion. The change in the interest rate (according to the change you made to the money market in the…arrow_forwardIs the relationship between changes in spending and changes in real GDP in the multiplier effect a direct (positive) relationship or is it an inverse (negative) relationship? How does the size of the multiplier relate to the size of the MPC? The MPS? What is the logic of the multiplier-MPC relationship?arrow_forward
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