Macroeconomics (6th Edition)
6th Edition
ISBN: 9780134106229
Author: R. Glenn Hubbard, Anthony Patrick O'Brien
Publisher: PEARSON
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Question
Chapter 12, Problem 12.4.7PA
Subpart (a):
To determine
The equilibrium level of
Subpart (b):
To determine
The MPC of the economy.
Subpart (c):
To determine
The Multiplier value.
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Answer the following questions, which relate to the aggregate expenditures model:a. If Ca is $100, Ig is $50, Xn is -$10, and G is $30, what is the economy’s equilibrium GDP?b. If real GDP in an economy is currently $200, Ca is $100, Ig is $50, Xn is -$10, and G is $30, will the economy’s real GDP rise, fall, or stay the same?c. Suppose that full-employment (and full-capacity) output in an economy is $200. If Ca is $150, Ig is $50, Xn is -$10, and G is $30, what will be the macroeconomic result?
Using the table below to answer the following questions. Assume all values represent trillions of dollars.
Construct a graph of the Aggregate planned expenditure
What is the equilibrium expenditure?
Explain what happens at a real GDP of $4 trillion dollars. (Note the aggregate
expenditures and the effects on inventories)
What are your total autonomous expenditures?
What is the marginal propensity to consume?
Ignoring imports and income taxes, what is the multiplier?
If investment increases by $1.5 trillion, what is the change in real GDP?
Use the diagram to the right to answer the following:
a. The equilibrium value of real GDP is $ trillion. (Enter your response as a whole number.)
b. The MPC is equal to
(Enter your response rounded to two decimal places.)
c. The multiplier is equal to
(Enter your response rounded to one decimal place.)
d. What is the value of unplanned changes in inventories when real GDP has each of the
following values? (Enter your responses rounded to one decimal place and include a minus sign if
necessary.)
GDP
$10 trillion
$12 trillion
$14 trillion
Unplanned Inventories
trillion
trillion
trillion
C
Aggregate Expenditure, AE ($, trillions)
24.0-
22.0
≈ ≈ ¦ CO
20.0-
18.0-
16.0-
14.0-
12.0+
10.0-
8.0-
6.0-
4.0-
2.0-
0.0-
O.
13.6
12.0
10.4
0
45°
-~
2 4
AE
10:12:14
10 12 14 16 18 20 22 24
6
8
Real GDP, Y ($, trillions)
G
Chapter 12 Solutions
Macroeconomics (6th Edition)
Ch. 12.A - Prob. 1RQCh. 12.A - Prob. 2RQCh. 12.A - Prob. 3RQCh. 12.A - Prob. 4RQCh. 12 - Prob. 12.1.1RQCh. 12 - Prob. 12.1.2RQCh. 12 - Prob. 12.1.3RQCh. 12 - Prob. 12.1.4PACh. 12 - Prob. 12.1.5PACh. 12 - Prob. 12.1.6PA
Ch. 12 - Prob. 12.1.7PACh. 12 - Prob. 12.1.8PACh. 12 - Prob. 12.1.9PACh. 12 - Prob. 12.2.1RQCh. 12 - Prob. 12.2.2RQCh. 12 - Prob. 12.2.3RQCh. 12 - Prob. 12.2.4RQCh. 12 - Prob. 12.2.5RQCh. 12 - Prob. 12.2.6PACh. 12 - Prob. 12.2.7PACh. 12 - Prob. 12.2.8PACh. 12 - Prob. 12.2.9PACh. 12 - Prob. 12.2.10PACh. 12 - Prob. 12.2.11PACh. 12 - Prob. 12.2.12PACh. 12 - Prob. 12.2.13PACh. 12 - Prob. 12.2.14PACh. 12 - Prob. 12.3.1RQCh. 12 - Prob. 12.3.2RQCh. 12 - Prob. 12.3.3RQCh. 12 - Prob. 12.3.4RQCh. 12 - Prob. 12.3.5RQCh. 12 - Prob. 12.3.6PACh. 12 - Prob. 12.3.7PACh. 12 - Prob. 12.3.8PACh. 12 - Prob. 12.3.9PACh. 12 - Prob. 12.3.10PACh. 12 - Prob. 12.3.11PACh. 12 - Prob. 12.3.12PACh. 12 - Prob. 12.4.1RQCh. 12 - Prob. 12.4.2RQCh. 12 - Prob. 12.4.3RQCh. 12 - Prob. 12.4.4PACh. 12 - Prob. 12.4.5PACh. 12 - Prob. 12.4.6PACh. 12 - Prob. 12.4.7PACh. 12 - Prob. 12.4.8PACh. 12 - Prob. 12.4.9PACh. 12 - Prob. 12.4.10PACh. 12 - Prob. 12.4.11PACh. 12 - Prob. 12.4.12PACh. 12 - Prob. 12.4.13PACh. 12 - Prob. 12.5.1RQCh. 12 - Prob. 12.5.2RQCh. 12 - Prob. 12.5.3RQCh. 12 - Prob. 12.5.4PACh. 12 - Prob. 12.5.5PACh. 12 - Prob. 12.5.6PACh. 12 - Prob. 12.1RDE
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- In 250 words or less, answer the following question. With reference to the multiplier process, discuss how a shock to an exogenous component of aggregate expenditure may lead to a larger than proportionate change in economic output in equilibrium.arrow_forwardVery briefly summarize the relationships shown by (a) the consumption schedule, (b) the saving schedule, (c) the investment demand curve, and (d) the multiplier effect. Which of these relationships are direct (positive) relationships and which are inverse (negative) relationships? Why are consumption and saving in the United States greater today than they were a decade ago?arrow_forwardGiven the information below, answer the questions that follow. C = $40 + 0.75Y I = $30 G = $40 X – M = $10 a) What is the equilibrium GDP? Explain why $550 is not the equilibrium. b) What is the marginal propensity to consume (MPC) in this question? (Explain) c) What is the multiplier in this question and explain the significance of the multiplier?arrow_forward
- Need help with this, please show me where to plot the two points on the graph as well. Thanks!arrow_forward1) Consider economy T described by the parameters below: C=1500+0.6Y I = 1200 G=2500 X =500 M = 400 T = 1000 a. Identify the marginal propensity to consume (MPC) in T. b. What will be the value of the equilibrium GDP in economy T? Calculate the value of the multiplier for economy T.arrow_forwardYou are given the following information on the macroeconomy: Consumption: 200 + 0.75Y Investment: 100 + 0.10Y Government Spending 500 Exports 100 Imports 50 + 0.25Y Compute the equilibrium level of income, the size of the multiplier, and the change in equilibrium income for an increase in autonomous consumption of $50 millionarrow_forward
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