The following table shows consumption (C), investment spending (I), and government purchases (G), for some hypothetical economy at several levels of income (reported in billions of dollars of real GDP). Assume that in this economy, income is taxed at a rate of 25%, base consumption is $25 billion, and that the marginal propensity to consume (MPC) is 0.333, or 1/3. Further assume that this economy is closed, that is, there is no international trade and so net exports are always equal to zero. Use the given information to fill in disposable income, consumption, and planned expenditures in the following table. Disposable (After Tax) Income (Billions of dollars) Income: Real GDP (Billions of dollars) 0 100 200 300 400 500 0 с (Billions of dollars) 25 Ip (Billions of dollars) 150 150 150 150 150 150 G (Billions of dollars) 50 50 50 50 50 50 The following graph shows income (real GDP) on the horizontal axis and planned expenditure on the vertical axis. Planned Expenditures (Billions of dollars)
The following table shows consumption (C), investment spending (I), and government purchases (G), for some hypothetical economy at several levels of income (reported in billions of dollars of real GDP). Assume that in this economy, income is taxed at a rate of 25%, base consumption is $25 billion, and that the marginal propensity to consume (MPC) is 0.333, or 1/3. Further assume that this economy is closed, that is, there is no international trade and so net exports are always equal to zero. Use the given information to fill in disposable income, consumption, and planned expenditures in the following table. Disposable (After Tax) Income (Billions of dollars) Income: Real GDP (Billions of dollars) 0 100 200 300 400 500 0 с (Billions of dollars) 25 Ip (Billions of dollars) 150 150 150 150 150 150 G (Billions of dollars) 50 50 50 50 50 50 The following graph shows income (real GDP) on the horizontal axis and planned expenditure on the vertical axis. Planned Expenditures (Billions of dollars)
Chapter9: Demand-side Equilibrium: Unemployment Or Inflation?
Section: Chapter Questions
Problem 2DQ
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The following table shows consumption (C), investment spending (I), and government purchases (G), for some hypothetical economy at several levels of income (reported in billions of dollars of real GDP). Assume that in this economy, income is taxed at a rate of 25%, base consumption is $25 billion, and that the marginal propensity to consume (MPC) is 0.333, or 1/3.
Further assume that this economy is closed, that is, there is no international trade and so net exports are always equal to zero.
Use the given information to fill in disposable income, consumption, and planned expenditures in the following table.
Income: Real GDP
|
Disposable (After Tax) Income
|
C
|
Ip
|
G
|
Planned Expenditures
|
---|---|---|---|---|---|
(Billions of dollars)
|
(Billions of dollars)
|
(Billions of dollars)
|
(Billions of dollars)
|
(Billions of dollars)
|
(Billions of dollars)
|
0 | 0 | 25 | 150 | 50 |
|
100 |
|
|
150 | 50 |
|
200 |
|
|
150 | 50 |
|
300 |
|
|
150 | 50 |
|
400 |
|
|
150 | 50 |
|
500 |
|
|
150 | 50 |
|
The following graph shows income (real GDP) on the horizontal axis and planned expenditure on the vertical axis.
Use the black line (plus symbol) to plot a 45-degree line on this graph. Then use all 6 of the the blue points (circle symbols) to plot the planned expenditure line for this economy. Be sure to plot these points at the income levels listed in the table (0, 100, 200, 300, 400, and 500 billion dollars).
On the previous graph, use the black point (plus symbol) to indicate the equilibrium income.
Note: Dashed drop lines will automatically extend to both axes.
Suppose income is currently $100 billion. This would mean that , which would send a signal to firms to .
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