EC140- Final Exam Guide - Comprehensive Notes for the exam ( 78 pages long!)

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29 Mar 2018

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EC140 Full Course Notes

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When prices rise, the money that people hold can buy fewer goods. People are effectively poorer and consumption falls. A rise in the price level lowers the real value of money. Similarly, a fall in the price level raises the real value of money. A rise in the price level leads to a decrease in wealth and in autonomous consumption (reduction in a) and to a downward shift in the ae function. A fall in the price level leads to a rise in wealth and in autonomous consumption (increase in a) and to an upward shift in the ae function. When the domestic price level rises, canadian goods become more expensive relative to foreign goods. Consumers in other countries reduce their purchases of canadian-made goods. A rise in the domestic price level shifts the export function downward, which causes a downward shift in the ae curve.

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Specific assignment: Mark each statement either True or False. If a statement is false, explain (very briefly) why it is false.

Keynes hypothesized that consumption is positively related to income. True

The marginal propensity to consume, MPC, is measured as changes in consumption over changes in income. True

The MPC is merely the percent of oneâs income that is spent to purchase goods and services. True

The MPC is the slope of the consumption function.

If the MPC is .8, then it may be concluded that the MPS must be .2.

If a personâs income is $10,000 and that person is spending $7,500 on consumption, then it may be concluded that that person has a marginal propensity to save of .25.

The MPC and the MPS must sum to one, meaning that 1 â MPC = MPS

Given a linear (straight-line) consumption function, the MPC must be a constant.

At the point graphically at which the consumption function intersects the 45-degree reference line, the MPC must be equal to 1.

If the consumption function lies above the 45-degree reference line, then there must be negative saving in the economy.

Autonomous consumption is that level of consumption spending that is independent of the level of income.

A change in the level of income will shift the consumption function either upward or downward.

A change in the level of consumer wealth will shift the consumption function either upward or downward.

If the MPC has a positive value, then the MPS must have a negative value.

Saving is defined simply as disposable income minus consumption.

If the consumption function has a slope of 4/5, then the saving function must have a slope of .2.

Any factor that would shift the consumption function upward would shift the saving function upward also.

The average propensity to consume (APC), like the MPC, is simply the slope of the basic, Keynesian consumption function.

Given a typical shaped consumption function, as the level of income rises, the APC rises as well.

If a consumption function graphically starts at a point above the origin (i.e., has a positive vertical axis intercept), then the saving function must begin below the origin.

A dramatic rise in household inflationary expectations could be expected to shift the consumption function downward and the saving function upward.

1. The multiplier helps explain

A. why a decrease in taxes causes real Gross Domestic Product (GDP) to fall by more than the amount of the decrease in taxes.

B. why a fall in investment cause real Gross Domestic Product (GDP) to rise by more than the amount of the decrease in investment.

C. why a rise in government expenditures causes real Gross Domestic Product (GDP) to rise by more than the amount of the increase in government spending.

D. why an increase in disposable income causes real Gross Domestic Product (GDP) to rise by less than the amount of the increase in disposable income.

2. If the marginal propensity to save (MPS) increases, the multiplier

A. decreases.

B. can either increase or decrease, depending on what happens to the marginal propensity to consume (MPC).

C. stays the same.

D. increases.

QUESTION 60

The investment function will shift when there is a change in

		A. the opportunity cost of retained earnings.
		B. firms' profit expectations.
		C. the cost of borrowing.
		D. the interest rate.

1.43 points

QUESTION 61

In the Keynesian model, whenever planned saving exceeds planned investment,

		A. there will be unplanned inventory accumulation.
		B. real GDP will not be influenced.
		C. the interest rate will remain unchanged.
		D. there will be unplanned inventory depletion.

1.43 points

QUESTION 62

In the Keynesian model, whenever planned saving is less than planned investment,

		A. there will be unplanned inventory depletion.
		B. the interest rate will remain unchanged.
		C. there will be unplanned inventory accumulation.
		D. real GDP will not be influenced.

1.43 points

QUESTION 63

Government purchases

		A. are determined by the political process.
		B. are determined by the public.
		C. are influenced by interest rates.
		D. are determined by suppliers.

1.43 points

QUESTION 64

If, at some level of output, total planned real expenditures are less than real Gross Domestic Product (GDP),

		A. real GDP will either fall or remain unchanged, depending on the MPC.
		B. real GDP will rise.
		C. real GDP remains unchanged.
		D. unplanned inventories will increase and real GDP will fall.

1.43 points

QUESTION 65

When the economy is operating at the equilibrium level of GDP, we know that

		A. total planned real expenditures equal real GDP.
		B. real net exports equal inventory changes.
		C. planned real investment spending equals real net exports of zero.
		D. total planned real consumption expenditures equal real GDP.

1.43 points

QUESTION 66

One divided by the marginal propensity to save (MPS) is the formula for

		A. the inverse of the multiplier.
		B. the multiplier.
		C. one minus the multiplier.
		D. autonomous consumption.

QUESTION 67

Thinking like an economist would, which is true of investment?

		A. Investment represents spending on capital goods.
		B. Investment is a stock concept.
		C. Investment is putting money into stocks and bonds.
		D. It is the portion of disposable income that is not used for consumption or saving.

QUESTION 68

Other things being equal, if input prices rise in a country, then there would be

		A. cost-push inflation.
		B. demand-pull inflation.
		C. cost-pull deflation.
		D. more production and a lower price level.

QUESTION 69

In the short run, if the price level rises, then the overall economy can temporarily produce beyond its nominal capacity. One reason for this is that

		A. existing capital equipment can be used more intensively.
		B. wage rates rise almost simultaneously with the price level.
		C. the unemployment rate usually rises dramatically along with the price level.
		D. workers can be switched from counted to uncounted production.

fuchsiaclam197

1. Menu costs are:

A) the costs of materials.

B) the cost of changing prices.

C) particularly low when inflation is high.

D) a reason that the inflation rate typically underestimates true price level changes.

2. A market basket costs $150 to buy in the base year and $60 to buy in year X.

A. the price index for year X is 250.

B. Year X probably occurred after the base year.

C. Year X is the base year.

D. the price index for year X is .4 or 40%.

3. A traditional expansionary gap is created when the aggregate demand curve moves to the:

A. right of the natural rate of output; inflation rises and unemployment falls.

B. left of the natural rate of output; inflation falls and unemployment rises.

C. right of the natural rate of output; inflation falls and unemployment rises.

D. left of the natural rate of output; inflation rises and unemployment falls.

4. Consumers change their purchases and move ALONG the same consumption function when:

A) Their income changes

B) Their tastes change

C) The price level changes

D) All of the above.

5. If MPC is .75 then if consumer income rises by $10,000 we would predict that consumption will:

A. rise by $7500 while savings fall by $2500.

B. fall by $2500 while savings rise by $7500.

C. rise by $7500 while savings rise by $2500.

D. fall by $2500 while savings fall by $7500.

6. Autonomous consumption is

A. that part of consumption that rises or falls with changes in disposable income.
B. the minimum that people will spend even if disposable income is zero.
C. the amount people will spend when the C line crosses the 45-degree line.
D. the amount people will spend when income is equal to consumption.

7. A low rate of investment could be explained by a

A. low rate of saving and low-interest rates.
B. low rate of saving and high-interest rates.
C. high rate of saving and low-interest rates.
D. high rate of saving and high-interest rates.

8. Mr. A makes $40,000 a year; Ms. B makes $20,000 a year. Mr. A pays $6,000 in taxes while Ms. B pays $4,000 in taxes. Which of the following is true?

A. Taxes are progressive because Mr. A pays a higher dollar amount in taxes than Ms. B

B. Taxes are neutral because Mr. A makes more money before and after taxes than Ms. B.

C. Taxes are regressive because Mr. A pays a lower tax rate than Ms. B.

D. Taxes are progressive because Ms. B pays a lower dollar amount in tax.

9. The 45 degree line in the full AE model represents

A. all points where C = Y.

B. all points where AE = Y

C. all points where C + I = G + Xn

D. all points where C = I + G + Xn

10. International trade:

A. Allows countries to specialize in the goods at which they are best at producing.

B. can increase the goods and services both trading partners have.

C. can be unbalanced where one partner exports more to the other than the other way around.

D. all of the above.

11. If AD rises in the short run:

A. it pushes up the price level.

B. it decreases national output.

C. increases full employment.

D. all of the above.

12. We cut down trees and sell the timber for $8000. The timber is sawn up into lumber that sells for $18,000. The lumber is used to build furniture that sells to consumers for $30,000.

A. $30,000 goes into GDP.

B. $4000 goes into GDP.

C. $56,000 goes into GDP.

D. $22,000 goes into GDP.

13. The long-run annual growth rate of the U.S. economy tends to be about:

A. 1% or less.

B. 2%

C. 5%

D. 10% or more.

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EC140- Final Exam Guide - Comprehensive Notes for the exam ( 78 pages long!)

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