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ECON 2450 Chapter Notes - Chapter all: Foreign Exchange Market, Gold Standard, Reserve Currency

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bluekangaroo774
14 Sep 2016
School
York University
Department
Economics
Course
ECON 2450
Professor
Arman Mansoorian

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Document Summary

Review of goods and money market with fixed prices. Since housing is part of investment, which is affects mostly by interest rate. C0 is the subsistence level of consumption, autonomous level of consumption, does not depend on y and any other factor. Yd is disposable income, after-tax income. t: tax rate yd=(1-t)*y. Cy is the marginal propensity to consume out of disposable income. Consumption will increase if yd increases by 1 unit. Cy is greater than 1 because we consume more when disposable income increases, normal good. Cy is less than 1 because we save some of the increased disposable income. C=c0+cy*(1-t)*y slope of the consumption function is cy (1-t) Notice: if there is a surge in house or stock price, then household wealth will go up. Similarly, if there is a crash in house or stock prices then c0 decreases. Depends primarily on interest rate and the expectations of the firms about the future level of economy activity.

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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.

Assume the following values of an economy.

Planned Investment (Ip) = $20

Autonomous Consumption (C ) = $30

Marginal Propensity to consume (MPC) = .9

What is the equilibrium income?

Y* = aggregate demand at the equilibrium level. (Consumption + investment)

Consumption function = autonomous consumption + mpc * Y.

C=30 + .9Y

AD = 30 + .9Y + 20 = 50 + .9Y

Y= 50 + .9Y.1Y = 50

Y = $500 is the equilibrium level of income.

What is the value of saving at equilibrium?

Savings = income - consumption at the equilibrium level of Y=500,

Consumption = 30 +.9 * 500 = $480

Savings = 500 - 480= 20

c. Does the saving and Investment Identity hold true at equilibrium income OR GDP?

Since planned investment = $20 which is equal to savings calculated, the saving investment identity holds true at equilibrium income.

2. In addition to the values given in question (1) above, assume the government increases its spending by $30 without raising taxes. The government can do this by borrowing from the private sector.

a. Based on this information calculate the new level of equilibrium income.

If Government expenditures = $30, Y = C + I + G

Y = 1/1-.09 * (30+20+30) Y = 800

b. Calculate the total value of consumption at equilibrium.

C = 30 + .9(800) = 750

c. Calculate the total value of saving at equilibrium.

Savings = I - C = 800 - 750 = 50

3. In addition to questions in (1 & 2) above, assume the government decides to raise autonomous taxes by $30 to balance its budget.

What is the new value of equilibrium income?

Y = 1/1-.9 (30-.9(30) +20+30) = 530

What is the value of the autonomous tax multiplier?

-.09/.01 = -9

c. What is the value of autonomous spending multiplier?

1/.1 = 10

On the planet Omicron Persei 8, government spending is $1000, net taxes are $1200, and planned investment is $1400. Consumers spend according to the equation C = 100 + 0.8Yd, where Yd represents disposable income. Given this information, fill out the table below to determine which of the output levels represents a macroeconomic equilibrium, then answer the questions that follow. Output (Income) Y Net Taxes T Disposable Income Yd Consumption C Planned Investment I Government Purchases G Planned Aggregate Expenditure AE Unplanned Inventory Change 6200 1200 5000 3850 1400 1000 6250 -50 6700 1200 5500 4225 1400 1000 6625 75 7200 1200 6000 4600 1400 1000 7000 200 7700 1200 6500 4975 1400 1000 7375 325 8200 1200 7000 5350 1400 1000 7750 450

An a. Which level of output is a macroeconomic equilibrium? There is no level of equilibrium based on inventory levels.

b. Is the government budget balanced, in deficit, or surplus, and by how much? Since the government is spending less than it is collecting in taxes, we are showing a surplus.

c. Find the marginal propensity to consume, and the marginal propensity to save. d. Find the government spending multiplier. If the government wanted to increase the equilibrium level of income by $1,000, how much would it have to increase government purchases? e. Find the tax multiplier. If net taxes were lowered by $100, what effect would it have on the equilibrium level of income? Give a specific numerical answer.