ECON 1115 Lecture Notes - Lecture 17: Autonomous Consumption, Consumption Function

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cerisegiraffe538

21 Oct 2015

School

Northeastern University

Department

Economics

Course

ECON 1115

Professor

Gerald Porter( G)

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Document Summary

Econ 1115 lecture 17 aggregate expenditures & supply demand. Aggregate expenditure (ae) is the sum of consumption, investment, government purchases, and net export. In economics, aggregate expenditure is a measure of national income. Co = autonomous consumption whose amount is independent of disposable income. This is a fraction between 0 and 1; and mpc is equal to change in consumption brought about by a change in disposable income. (mpc = change in c / change in yd) Equilibrium gdp: equilibrium gdp is the level of output whose production will create total spending just sufficient to purchase that output. This will signal firms that they have overproduced. As a result, firms will cut back on production and/or prices. This will decrease the total value of output, moving the economy towards the equilibrium gdp: when ae > ap, inventories will be depleted unexpectedly. This will signal firms that they have not produced enough. As a result, firms will increase productions and/or prices.

Related Questions

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

Given the following information for the Macro Economy answer the following questions.

In this economy we have an MPC equal to 0.80, Autonomous Consumption of $600 billion, Planned Investment (I) of $1,000 billion, Government Spending (G) of $1,200 billion and Net Taxes (T) of $1,000 billion.

a) Fill in the missing data for: T, Yd, C, S, and AE (in that order in a table) for every level of Y given below (all the numbers are in billions).

Income (Y) Net Taxes (T) Disposable Income (Yd) Consumption (C) Savings (S) Aggregate Expenditures (AE)
2,000
3,000
4,000
5,000
6,000
7,000
8,000
9,000
10,000
11,000
12,000
13,000

b) Determine the Equilibrium level of Aggregate Income (Ye). Please state the reason for your answer.

c) Calculate the Spending Multiplier (show how you got your answer).

tealalligator726

Suppose that the Australian economy is at long run equilibrium, and the Australian government announces its decision to decrease spending on infrastructure.

Discuss the short-run effects of a decrease in spending on aggregate espenditure (AE) and aggregate demand (AD). in your discussion, explain the process that moves the economy to its new equilibrium output. That is, explain what would happen to:

1. aggregate planned expenditure

2. firms inventories and production

3. disposable income and consumption expenditure

4. aggregate demand and supply

5. real GDP and price level

Use the AE and AD Graph for your graphical analysis to support your explanation.

sapphiredinosaur980

ECON 1115 Lecture Notes - Lecture 17: Autonomous Consumption, Consumption Function

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