EC140 Lecture Notes - Lecture 3: Aggregate Demand, Xm Satellite Radio, Disposable And Discretionary Income

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9 Apr 2015

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In this simple model, firms will supply all that is demanded at the price level. Consumption and saving functions: disposable income is either spent on consumption goods and services, c, or saved, s. Yd = c + s, y = c + s + t. Mpc = c/ yd: mpc is the slope of the consumption function. Marginal propensity to save disposable income that is saved. The marginal propensity to save (mps) is the fraction of a change in: mps is the slope of the saving function, mpc + mps = 1. Import function: the marginal propensity to import (mpi) is the fraction of an increase in y, Planned c + i + g + x - m: actual expenditure is planned expenditure plus any unplanned changes in inventory. Actual aggregate expenditure is always equal to real gdp. Aggregate planned expenditure may differ from actual aggregate expenditure. The 45 degree line is all points where ae = gdp.

Related Questions

10,A change in the price levelâ ________ the AE curve andâ ________ the AD curve.

âshifts; shifts

has no effectâ on; results in a movement along

results in a movementâ along; results in a movement along

results in a movementâ along; shifts

âshifts; results in a movement along

17,When the price levelâ falls, the aggregate planned expenditure curve shiftsâ ________, equilibrium expenditureâ ________ and there is a movementâ ________ along the aggregate demand curve.

âupward; increases; upward

âdownward; decreases; downward

âupward; decreases; downward

âupward; increases; downward

âdownward; increases; upward

21,Which of the following increases the size of the expenditureâ multiplier?

an increase in autonomous spending

a decrease in the marginal propensity to consume

a decrease in the marginal propensity to import

an increase in the marginal income tax rate

an increase in investment

23,If the quantity of real GDP demanded is greater than the quantity of real GDPâ supplied, then

the price level falls and firms decrease production.

aggregate demand changes to restore equilibrium.

the economy must be producing at potential GDP.

the price level falls to restore the macroeconomic equilibrium

the price level rises and firms increase production.

24, ________ can trigger an expansion.

Equality between aggregate expenditure and real GDP

A decrease in induced expenditure

A downward shift of the AE line

An increase in autonomous expenditure

A decrease in autonomous expenditure

greyarmadillo136

Question 1

Which of the following describes the relationship between the change in inventories and aggregate expenditure?

A.	Aggregate expenditure equals the change in inventories minus GDP.
B.	The change in inventories equals GDP divided by aggregate expenditures.
C.	Aggregate expenditures equals GDP divided by the change in inventories.
D.	Aggregate expenditures equals GDP minus the change in inventories.
E.	The change in inventories equals GDP multiplied by aggregate expenditure.

1 points

Question 2

Suppose the marginal propensity to consume is 0.80 and taxes decrease by $10 billion. Which of the following is true?

A.	Disposable income and consumption fall by $10 billion
B.	Disposable income and consumption rise by $10 billion
C.	Disposable income rises by $10 billion and consumption rises by $8 billion
D.	Disposable income falls by $10 billion and consumption falls by $8 billion
E.	Disposable income rises by $10 billion and consumption falls by $8 billion

1 points

Question 3

If aggregate expenditure at a particular level of income is less than output,

A.	output will increase
B.	output will decrease
C.	output will remain the same
D.	output will rise slightly and then level off
E.	we cannot determine what will happen to output

1 points

Question 4

The consumption function

A.	illustrates the relationship between real disposable income and real consumption spending
B.	illustrates the relationship between the price level and real consumption spending
C.	is the relationship between productivity and real consumption spending
D.	shows how real consumption increases when real disposable income decreases
E.	illustrates the relationship between real consumption spending and employment

1 points

Question 5

The focus of the short-run macro model is on the role of

A.	spending in explaining economic fluctuations
B.	labor in explaining economic fluctuations
C.	financial markets in explaining economic fluctuations
D.	output in explaining economic fluctuations
E.	resources in explaining economic fluctuations.

1 points

Question 6

If the output level is such that the aggregate expenditure line lies below the 45-degree line, which of the following is true?

A.	Aggregate expenditure is greater than output, so inventories will increase and output will be raised.
B.	Aggregate expenditure is greater than output, so inventories will decrease and output will be increased.
C.	Aggregate expenditure is less than output, so inventories will decrease and output will be raised.
D.	Aggregate expenditure is less than output, so inventories will increase and output will be lowered.
E.	Aggregate expenditure is greater than output, so inventories will increase and output will be lowered.

1 points

Question 7

If the marginal propensity to consume is 0.7, the expenditure multiplier is

A.	7.0
B.	0.7
C.	3.0
D.	3.3
E.	not determinable without additional information.

1 points

Question 8

Aggregate expenditure is the sum of

A.	all types of spending by households and firms
B.	spending and savings by households
C.	spending by households and governments on final goods and services
D.	spending by households, government, firms, and foreigners on final goods and services
E.	all spending and saving by households, firms, and governments

1 points

Question 9

If the marginal propensity to consume is 0.5 and disposable income increases by $10,000, by how much will consumption spending increase?

A.	$10,000
B.	$500
C.	$50
D.	$5,000
E.	$9,524

1 points

Question 10

When real consumption expenditure is plotted against real disposable income the resulting relationship is

A.	very weak.
B.	virtually flat .
C.	positive and very close to linear.
D.	negative and very close to linear.

indigognu668

Assume that the equations below describe the expenditures within a particular macroeconomy and that these equations conform to the assumptions we've made in the lecture regarding the fixed price level Aggregate Expenditure model. All values for expenditure and income are dollar amounts, but for simplicity, we've dropped the $ below.

C = 0.8(DI) + 1000	C = Consumption expenditure, DI = Disposable Income
I = 2000	I = Investment expenditure
G = 1000	G = government expenditure
X = 1600	X = spending on exports
M = 1800	M = spending on imports
DI = Y - T	Y = real GDP, T = tax revenues/>
T = 1000
Yp = 12000	Yp = Potential GDP

Given the equations above, we can describe the GDP, government budget, and net exports in this economy. Select three characteristics from the list below which accurately describe this economy. Note that there is no partial credit on this question. I.e., your answer will either be all correct, or all wrong.

	a.	inflationary gap
	b.	recessionary gap
	c.	no output gap
	d.	government budget surplus
	e.	government budget deficit
	f.	balanced government budget
	g.	trade deficit
	h.	trade surplus
	i.	net exports of zero

pucearmadillo585

EC140 Lecture Notes - Lecture 3: Aggregate Demand, Xm Satellite Radio, Disposable And Discretionary Income

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