Macroeconomics
13th Edition
ISBN: 9780134735696
Author: PARKIN, Michael
Publisher: Pearson,
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Question
Chapter 28, Problem 13SPA
To determine
Identify the value of the multiplier in the short run and the long run.
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An economy has a marginal propensity to consume of 0.5, and Y*, the income-expenditure equilibrium GDP, equals $500 billion. Given an autonomous increase in planned investment of $10 billion, answer the following questions.
a. What is the value of the multiplier?
Value of the multiplier =
b. What would you expect the total change in Y* to be based on the multiplier formula?
Change in Y* based on the multiplier =
billion
c. What is the total change in real GDP after the 10 rounds?
It may be beneficial to make a table on a separate sheet of paper to calculate the change in real GDP for each of the rounds, and then add up the values.
Total change in real GDP (10 rounds) =
How is it possible for investment spending to increase even in a period in which the real interest rate rises? Is 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?
1. If an increase in investment spending of $20 million results in a $200million increase in equilibrium real GDP, thenA. the multiplier is 10.B. the multiplier is .1.C. the multiplier is 100.D. the multiplier is 1.
Chapter 28 Solutions
Macroeconomics
Ch. 28.1 - Prob. 1RQCh. 28.1 - Prob. 2RQCh. 28.1 - Prob. 3RQCh. 28.2 - Prob. 1RQCh. 28.2 - Prob. 2RQCh. 28.2 - Prob. 3RQCh. 28.2 - Prob. 4RQCh. 28.3 - Prob. 1RQCh. 28.3 - Prob. 2RQCh. 28.3 - Prob. 3RQ
Ch. 28.4 - Prob. 1RQCh. 28.4 - Prob. 2RQCh. 28.4 - Prob. 3RQCh. 28.4 - Prob. 4RQCh. 28 - Prob. 1SPACh. 28 - Prob. 2SPACh. 28 - Prob. 3SPACh. 28 - Prob. 4SPACh. 28 - Prob. 5SPACh. 28 - Prob. 6SPACh. 28 - Prob. 7SPACh. 28 - Prob. 8SPACh. 28 - Prob. 9SPACh. 28 - Prob. 10SPACh. 28 - Prob. 11SPACh. 28 - Prob. 12SPACh. 28 - Prob. 13SPACh. 28 - Prob. 14SPACh. 28 - Prob. 15APACh. 28 - Prob. 16APACh. 28 - Prob. 17APACh. 28 - Prob. 18APACh. 28 - Prob. 19APACh. 28 - Prob. 20APACh. 28 - Prob. 21APACh. 28 - Prob. 22APACh. 28 - Prob. 23APACh. 28 - Prob. 24APACh. 28 - Prob. 25APACh. 28 - Prob. 26APACh. 28 - Prob. 27APACh. 28 - Prob. 28APACh. 28 - Prob. 29APACh. 28 - Prob. 30APACh. 28 - Prob. 31APACh. 28 - Prob. 32APACh. 28 - Prob. 33APACh. 28 - Prob. 34APA
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Similar questions
- If an increase in investment spending of $50 million results in a $400 million increase in equilibrium real GDP, then O A. the multiplier is 0.125. B. the multiplier is 3.5. C. the multiplier is 8. D. the multiplier is 50.arrow_forwardWhat is the multiplier effect? What relationship does the MPC bear to the size of the multiplier? The MPS? What will the multiplier be when the MPS is 0, .4, .6, and 1? What will it be when the MPC is 1, .90, .67, .50, and 0? How much of a change in GDP will result if firms increase their level of investment by $8 billion and the MPC is .80? If the MPC is .67?arrow_forwardAn Economy has no imports or taxes, the MPC is 0.90 and real GDP is $12 trillion. If businesses increase investment by $0.1 trillion: 1. Calculate the multiplier? 2. Calculate the change in real GDP? 3. Calculate the new level of real GDP?arrow_forward
- Suppose that an initial $10 billion increase in investment spending expands GDP by $10 billion in the first round of the multiplier process. Also suppose that GDP and consumption both rise by $6 billion in the second round of the process. what is the MPC? What is the size of the Multiplier? If, instead, GDP and consumption both rose by $8 billion in the second round, what would have been the size of the multiplier?arrow_forwardIf an increase in investment spending of $50 million by Amgen, a biomedical company, results in a $400 million increase in equilibrium real GDP, then what is the expenditure multiplier? Select one: a. the multiplier is 0.125. b. the multiplier is 3.5. c. the multiplier is 8. d. the multiplier is 50.arrow_forwardIf national income now rises by £22 billion and as a result, the consumption of domestically produced goods rises to £80 billion. Calculate the marginal propensity to consume (MPC)What is the value of the multiplier? What is the value of the multiplier? Comment on the results in part (3) and (4).arrow_forward
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