ECON102 Lecture Notes - Lecture 11: Potential Output, Output Gap, Aggregate Demand

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cerisegiraffe538

17 Apr 2018

School

University of Alberta

Department

Economics

Course

ECON102

Professor

Andrew Wong

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Lecture 11 continuing aggregate supply: review from last class: if the output in the economy increases, therefore more employment and less unemployment. Determining equilibrium output using the 45 degree line of aggregate expenditure: above the equilibrium: when the output (y) is greater than the aggregate expenditure (ae), then there is a surplus of unsold items. The surplus items are accumulated to the inventory. Therefore, the production by factories increases until we reach equilibrium: at the equilibrium: supply (y) = aggregate demand (ae) Ae (aggregate expenditure): what people want to buy: the black circle in the intersection of 45 degree line and the aggregate. The opposite of this would happen for a scenario that is above the equilibrium. T (lump sum tax: fixed amount of tax, does not depend on an individual"s incomes): 10. Make sure you plug the numbers in properly, it is a common mistake on exams.

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).

d) State in one sentence what your answer in (c) above tells us about any decrease in spending that takes place in the economy.

e) If this economy had a full employment level of income equal to $8,000 billion, what Macroeconomic condition is this economy experiencing.

f) Using the Spending Multiplier, determine the change in G that is needed to get this economy to be in equilibrium at full employment. Please show your work.

g) Using the Spending Multiplier, determine the change in T that is needed to get this economy to be in equilibrium at full employment. Please show your work.

cerisesnake32

Assignment 4 (Chapter 23) Sequestration 2013

Dear Colleagues,

Using the goods and services model from the text (what I have labeled the 'Commodities Model' in my syllabus or the Keynesian Cross), please offer a basic analysis of the sequestration of expenditures by the Federal Government that took effect on March 1^st. Please limit your analysis to an expenditure equation containing only personal consumption expenditures (C) and planned investment (I_o). (The aggregate expenditures equation would be limited to AE = C + I_o_.) Please note that I want you to ignore the impact of any direct reduction in governmental expenditures upon aggregate expenditures as is discussed in chapter 24. In particular, discuss and model the effects of the Sequestration on C. Also, would there be a possible effect on I_o? Please explain the conclusions that you reach. Before beginning your analysis please read the articles listed below:

Sequestration: The Truth Behind The Spending Cut, Mani.

http://www.istockanalyst.com/finance/story/6318811/sequestration-the-truth-behind-the-spending-cuts

Paragraph 7 in particular in the article above

Fiscal Multipliers, the IMF & the OBR, Weldon, Duncan.

http://touchstoneblog.org.uk/2012/10/fiscal-multipliers-the-imf-the-obr/

Deleveraging Shocks and the Multiplier (Sort of Wonkish), Krugman, Paul,

http://krugman.blogs.nytimes.com/2012/10/09/deleveraging-shocks-and-the-multiplier-sort-of-wonkish/

In your analysis, please use the Keynesian Theory of Consumption as the model to represent household expenditures. You may assume that the aggregate expenditure function (line) has only consumers and business, and business expenditures are not dependent upon income (as presented in the text).

Of what importance is the discussion of the multiplier mentioned in the last two articles?

Is it possible that business expectations about the future will change?

What would change in the model as a result of this change in expectations (Please discuss the potential impact on inventories)?

As you perform your analysis, you do not have to specify exact values on the axes. Your response will be graded upon your ability to determine the direction in which incomes will change, either increasing or decreasing, due to the sequestration and if the change will be large or small. (Recall that income, Y, is represented on the horizontal axis in the Keynesian Cross model.) In your model, be sure to begin your analysis with aggregate expenditures at pre-sequestration levels and equilibrium income. Then indicate the appropriate movement of the consumption function and business planned investment and the effect on equilibrium income.

Also, provide a brief explanation of how unplanned investment would change as a result of the sequestration and how the unplanned investment causes equilibrium income to increase or decrease.

The book Principles of Economics, Tenth Edition, Chapter 23 - Sequestration 2013.

tealhamster375

ECON102 Lecture Notes - Lecture 11: Potential Output, Output Gap, Aggregate Demand

ECON102 Full Course Notes

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