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Macroeconomics Study Set 43

Business

Quiz 10 :

A: Basic Macroeconomic Relationships

Quiz 10 :

A: Basic Macroeconomic Relationships

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List six events that could cause a shift in the investment demand curve to the right.
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The investment demand curve would shift to the right if the cost of acquiring, operating, or maintaining capital goods declined; business taxes decreased; a technological change favoring new investment occurred; the stock of capital goods on hand relative to sales decreased; firms' decided to increase inventories; or expectations about higher future profits from investment increased.

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Define the consumption and saving schedules.
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In the aggregate expenditures model one focus is on the consumption schedule which is the relationship between the consumption part of aggregate expenditures and disposable income.Graphically this relationship is illustrated with consumption measured on the vertical axis and disposable income measured on the horizontal axis.If the two were equal, the relationship would follow a straight line along the 45-degree line.Historical data and the aggregate expenditures model suggest that it is a direct relationship, and that households spend a larger proportion of a small income than of a large disposable income.In other words, consumption as a proportion of income falls as disposable income increases.
Since saving is the difference between disposable income and consumption spending, the saving schedule also shows a direct relationship between saving and disposable income.Graphically, it is depicted with saving on the vertical axis and disposable income measured on the horizontal axis.At very low income levels, dissaving is believed to occur and saving increases proportionally as income rises.

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Suppose a family's annual disposable income is $8,000 of which it saves $2,000.(a) What is their APC? (b) If their income rises to $10,000 and they plan to save $2,800, what are their MPS and MPC? (c) Did the family's APC rise or fall with their increase in income?
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(a) APC = .75 ($6,000/$8,000).
(b) MPS = .4 ($800/$2,000); MPC = .6 (1 - .4).
(c) APC fell to.72 ($7,200/$10,000).

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What are the marginal propensity to consume (MPC) and marginal propensity to save (MPS)? How are the two concepts related? How are the two concepts related to the consumption and saving functions?
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Complete the accompanying table. img (a) What is the break-even level of income? How is it possible for households to dissave at very low income levels? (b) If the proportion of total income consumed decreases and the proportion saved increases as income rises, explain how the MPC and MPS can be constant at various levels of income.
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Use the following data to answer the questions. img (a) Explain why this table is essentially an investment demand schedule.(b) If the interest rate was 8%, how much investment would be undertaken? (c) Why is there an inverse relationship between the rate of interest and the amount of investment?
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Explain how consumption and saving are related to disposable income.
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State four factors that explain why investment spending tends to be unstable.
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Explain the difference between a movement along the consumption schedule and a shift in the consumption schedule.
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Complete the accompanying table. img Using the below graphs, show the consumption and saving schedules graphically. img (b) Locate the break-even level of income.How is it possible for households to dissave at very low income levels? (c) If the proportion of total income consumed decreases and the proportion saved increases as income rises, explain both verbally and graphically how the MPC and MPS can be constant at various levels of income.
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List four factors that could shift the current consumption schedule.
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What is the effect of increase in wealth on the consumption and saving schedules?
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Complete the following table assuming that (a) MPS = 1/3, (b) there is no government and all saving is personal saving. img
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Use the graphs below to answer the following questions: img (a) What types of schedules do graphs A and B represent? (b) If in graph A line A2 shifts to A3 because households consume more and this change is not due to changing taxes, then what would happen to line B2 in graph B? (c) If in graph B, line B2 shifts to B1 because households save less, then what will happen to line A2 in graph A? (d) In graph A, what has caused the movement from point A to point B on line A2? (e) If there is a lump-sum tax increase causing line A2 to shift to A1, then in graph B, what will happen to B2?
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Complete the following table assuming that (a) MPS = 1/5, (b) there is no government and all saving is personal saving. img
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Describe the relationship between the Great Recession of 2008-2009 and the Investment Riddle.
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Suppose that the linear equation for consumption in a hypothetical economy is C = 50 + 0.9 Y.Also suppose that income (Y) is $400.Determine the following: (a) MPC; (b) MPS; (c) level of consumption; (d) APC; (e) APS.
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Differentiate between the average propensity to consume and the marginal propensity to consume.
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Describe the relationship shown by the investment demand curve.
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Describe the relationship between the Great Recession of 2008-2009 and the Paradox of Thrift.
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