ECON101 Study Guide - Midterm Guide: Economic Surplus, Limited Liability, Demand Curve

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sangriaseal840

10 Apr 2014

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University of Alberta

Department

Economics

Course

ECON101

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All

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ECON101 Full Course Notes

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O the consumer wants to maximize her/his happiness subject to his/her level of income: our choices for our happiness is restricted by our level of income, maximize utility. February 11, 2014: the consumer"s objective, consumer equilibrium. The consumer"s problem: u = u (q1, q2, qn) Subject to : i = p1q1 + p2q2 + . The consumer must spend all of her/his income. Consider a consumer who only buys two goods, a and b. Claim: consumer equilibrium occurs where mua/pa = mub/pb. This proves that at the initial portion is not a consumer equilibrium. The position (mua/pa > mub/pb ) cannot be an equilibrium. Mua/pa = utility gained by the last dollar spent on good a. Mub/pb = utility gained by the last dollar spent on good b. You get more happiness by spending money on b, therefore you"ll buy more of good b and less of good a.

Related Questions

1. Economists use ____________ as a measure of the relative level of satisfaction when someone consumes a good or service.

2. Sue likes brownies. However, Sue notices that the more brownies she eats the less satisfaction she receives from each extra brownie. We can say that Sue is experiencing ___________________ from each extra brownie.

sugar sickness

total utility

diminishing marginal utility

increasing marginal utility

3. When total utility is maximized, the marginal utility will be

4. Consider Dirk and Lee. They are both eating pizza. Which of the following statements is true regarding their satisfaction and utility?

Dirk and Lee both receive 10 utils from eating pizza.

Dirk and Lee both receive the same level of satisfaction from eating pizza.

Dirk gets more twice as much satisfaction as Lee from eating pizza.

It is difficult to determine because the utility is subjective.

5. For many products, the total utility curve is

strictly increasing because of increasing marginal utility.

strictly decreasing because of diminishing marginal utility.

increasing initially because of increasing marginal utility, but eventually decreases.

increasing initially at a decreasing rate because of diminishing marginal utility but eventually decreases.

6. When consumers get the biggest bang for the buck, we say they

used the loudest gun in hunting season.

reached a consumer optimum.

minimized consumer satisfaction.

maximized marginal utility.

7. By choosing to consume at the consumer optimum, consumers will

maximize their total utility.

minimize their total utility.

maximize the amount they spend on each good.

minimize the amount they spend on each good.

8. A consumer is in equilibrium when consuming two goods when which of the following holds?

MU_a/ P_a = MU_b/ P_b

MU_a/ P_h =MU_b/ P_a

P_a/ MU_a = P_b/ MU_b

MU_a x P_a = MU_bxP_b

9. If the marginal utility of good 1 is 15 and its price is $3, and the marginal utility of good 2 is 12, and its price is $4, then the consumer

has achieved a consumer optimum.

should increase his or her consumption of good 1.

should increase his or her consumption of good 2.

should decrease his or her consumption of good 1.

10.Suppose the price of an iPod decrease and the price of HD TVs remains the same; what noticeable effect(s) occur(s)?

the substitution effect only

the real-income effect only

the substitution effect and real-income effect, if there is a noticeable change in purchasing power

the substitution effect and real-income effect, if there isnât a noticeable change in purchasing power

11. The ______________ paradox was described by Adam Smith in 1776.

12. What is the key to solving the diamond-water paradox?

more water and fewer diamonds

marginal utility

total utility

consumer demand

13. When solving the diamond-water paradox we notice that the marginal utility of

diamonds are equal to the marginal utility of water.

diamonds are greater than the marginal utility of water.

diamonds are less than the marginal utility of water.

water is equal to its price, and therefore lower than the marginal utility of diamonds.

14. The consumer surplus for water is

greater than that for diamonds because water is nonessential.

greater than that for diamonds because water is essential.

less than that for diamonds because water is nonessential.

less than that for diamonds because water is essential.

15. Suppose a consumer consumes only diamonds and water, and the price of diamonds increases. All else being equal, a consumerâs marginal utility for diamonds

decreases and the marginal utility for water stays the same.

increases and the marginal utility for water decreases.

decreases and the marginal utility for water increases.

increases and the marginal utility for water stays the same.

tansnake161

1. Suppose that the total utility from consuming one unit of good X is 54 utils, the total utility of two units of good X is 74 utils, and the total utility of three units of good X is 84 utils. The marginal utility of the third unit is

a.70.67 utils.

b.10 utils.

c.12.25 utils.

d.20 utils.

2. If income rises, the budget constraint

a. Moves outward away from the origin

b. Does not move

c. Moves inward toward the origin

d. Moves farther down the vertical axis

3. Economists assume that the goal of consumers is to maximize total utility.

true/false

4. The budget constraint cuts the horizontal axis at 12 units of good X and it cuts the vertical axis at 20 units of good Y. If the price of good X is $20 and the price of good Y is $12, then what does income equal?

a. $200

b. $240

c. $520

d. $280

e. not enough information to answer this question

5. Consumer equilibrium exists when an individual

a. can be made better off by buying more of a normal good and less of an inferior good.

b. is receiving the same total utility from each of the goods he or she purchases.

c. is receiving the same marginal utility from each of the goods he or she purchases.

d. has the same MU/P ratio for each of the goods he or she purchases.

e. none of the above

6. Suppose you are eating buffalo wings at a local happy hour. The total utils from doing so after the fourth, fifth, sixth, and seventh wings are 30, 50, 65, 72, respectively. In this situation we have __________ marginal utility, which is generally __________ in the analysis of consumer choice.

a. diminishing; not assumed

b. increasing; assumed

c. diminishing; assumed

d. increasing; not assumed

7. Which of the following best describes an interpersonal utility comparison?

a. Usually, Smith seems a lot happier than Jones.

b. Smith gets more utility from working on his computer than Jones gets from working on his computer.

c. Smith usually eats more in a day than Jones eats in a day.

d. ones likes computers produced by Dell Computer Corporation and Smith likes computers produced by Apple Computer Inc

e. Smith got less utility from eating the 30th cookie than eating the 29th cookie, and the same holds for Jones.

8. We would expect the total utility of water to be high but its marginal utility to be low. Why?

a. Because we need water to live and there is so much of it.

b. Because we need water to live and there is very little of it.

c. Because water is a fluid and we don't need fluids to live as much as we need food

d. Because water's price is low.

9.The marginal utility curve for units 6 through 8 of good Z lies below the horizontal axis. What does this imply must be true about the total utility curve for units 6 through 8 of good Z?

a. That portion of good Zâs total utility curve must also lie below the horizontal axis.

b. That portion of good Zâs total utility curve must be upward sloping.

c. That portion of good Zâs total utility curve must be horizontal.

d. That portion of good Zâs total utility curve must be downward sloping.

10. Research presented in the text shows that people are more concerned with their absolute income position in a group than their relative income position in the group.

true/false

1.
John just bought shares of stock in IBM for $10,000 and paid a $90commission to his broker. How did this affect GDP?
A) It had no impact on GDP.
B) GDP increased by $90.
C) GDP increased by $10,000.
D) GDP increased by $9,990.
E) GDP increased by $10,090.
2.
Opportunity cost is the ____ alternative forfeited when a choice ismade.
A) least-valued
B) most highly-valued
C) most convenient
D) most recently considered
3.
If there is an increase in the amount of good B foregone as everyadditional unit of good A is produced, the PPF between A and Bwould
A) be a straight line.
B) be a bowed-outward curve.
C) be a bowed-inward curve.
D) not exist.
4.
Persons who are retired or engaged in own-home housework areconsidered to be in which of the following categories?
A) in the civilian labor force
B) not in the labor force
C) employed
D) unemployed
5.
A recessionary gap exists if (actual) Real GDP is ____ Natural RealGDP.
A) less than
B) greater than
C) equal to
D) b and c
E) none of the above
6.
Decision making "at the margin" means making a choice based on ____of a decision.
A) the total benefits
B) the total costs
C) comparing the total benefits and costs
D) comparing the additional benefits and costs
7.
When Claudia trades $100 for good X, economists assume that sheis
A) trading something of less value to her for something of morevalue to her.
B) trading something of more value to her for something of lessvalue to her.
C) trading something that gives her less utility for something thatgives her more utility.
D) a and c
E) none of the above
8.
An increase in investment at a given price level
A) shifts the AD curve to the right.
B) shifts the AD curve to the left.
C) causes an upward movement along the existing AD curve.
D) causes a downward movement along the existing AD curve.
E) none of the above
9.
If the demand for a good falls by less than the supply of the goodrises, then equilibrium price will ____ and equilibrium quantitywill ____.
A) rise; fall
B) rise; rise
C) fall; fall
D) fall; rise
10.
The CPI was 140 in one year and 144 the following year.Approximately how much did prices rise between the two years?
A) 2.86 percent
B) 2.78 percent
C) 0.03 percent
D) 1.03 percent
E) none of the above
11.
The expenditure approach to measuring GDP sums
A) consumption, investment, government purchases, and netexports.
B) sales, revenues, income, and wages.
C) profits, compensation of employees, consumption, andinvestment.
D) net exports, consumption, wages, and salaries.
12.
Which of the following would not be included in the calculation ofthis year's GDP?
A) a headlight bulb purchased at Joe's Auto Supply by Susan toreplace a burnt out bulb in her car
B) a headlight bulb purchased by Ford Motor Co. from asupplier
C) a headlight bulb produced but not sold this year and thus endingup as inventory
D) none of the above, i.e., all would be included
13.
Suppose the government decides that every family should own its ownhome. To bring this about, the government decides to subsidize thehome-construction industry by giving the home-constructioncompanies $10,000 for every house that they build. As a result ofthis,
A) the supply curve of new houses would shift leftward, since itnow costs $10,000 more for builders to produce a house.
B) the demand curve for new houses would shift rightward, since nowevery family would want to buy a house.
C) the demand curve for new houses would shift leftward.
D) the supply curve of new houses would shift rightward, sincebuilders would be willing to produce and sell more houses at eachgiven price.
E) c and d
14.
Which set of changes will raise demand?
A) an increase in income (assuming demand is for a normal good), adecline in wage rates, and a rise in the per-unit tax placed on theproduction of a good
B) an increase in the number of buyers, a decline in the price of asubstitute, and an increase in the prices of relevantresources
C) an increase in the price of a substitute, a decrease in theprice of a complement, and an increase in expected (future)price
D) a decline in the number of buyers, an increase in the price of acomplement, and a decline in a per-unit tax placed on theproduction of a good
E) none of the above
15.
Both country 1 and country 2 are located on their respectiveproduction possibilities frontiers (PPFs), but country 1 producestwice the output that country 2 produces. It follows that
A) country 1's PPF lies further to the right than country 2'sPPF.
B) country 1 has a smaller population than country 2.
C) country 1 has a bigger population than country 2.
D) country 1 is efficient and country 2 is inefficient.
E) none of the above
16.
Suppose aggregate demand is too low to bring about the Natural RealGDP level. A Keynesian policy prescription would call for a(n) ____to close this recessionary gap.
A) increase in government spending
B) decrease in government spending
C) increase in taxes
D) decrease in taxes
E) a or d
17.
The structural unemployment rate is 3.1 percent, the frictionalunemployment rate is 2.1 percent, and the current unemployment rateis 4.9 percent. The economy is in
A) a recessionary gap producing less than Natural Real GDP.
B) an inflationary gap producing more than Natural Real GDP.
C) long-run equilibrium.
D) an inflationary gap producing Natural Real GDP.
E) a recessionary gap producing more than Natural Real GDP.
18.
A fall in the price level changes the purchasing power of money.This is relevant to the ____ effect.
A) international trade
B) real balance
C) aggregate demand
D) interest rate
E) aggregate supply
19.
An economic policy initiative results in the AD curve shifting tothe right. As a result,
A) the price level will rise.
B) the price level will stay constant.
C) the price level will fall.
D) Real GDP will rise in the short run.
E) a and d
20.
Which of the following is consistent with the classical position onwages and prices?
A) Wages and prices are sticky in the downward direction.
B) Wages are sticky in the downward direction, but prices areflexible.
C) Wages and prices are flexible.
D) Prices are sticky in the downward direction, but wages areflexible.
21.
If the bottom half of all U.S. income tax payers were allowed tostop paying the income tax entirely and the top 50% continued topay as they do now, tax revenues to the government would drop byabout
A) 3.6 percent.
B) 10.2 percent.
C) 13.9 percent.
D) 33.3 percent.
22.
Which of the following is most nearly consistent with Say'slaw?
A) When a person produces one good, he or she plans to demand othergoods.
B) When a person produces a good, he or she plans to sell it.
C) When a person buys a good, he or she plans to pay for it withmoney.
D) When a person goes to work, he or she plans to produce.
23.
The economy was at point A producing 100X and 200Y. It moved topoint B where it produces 200X and 300Y. It follows that
A) point A may have been a point below the economy's PPF, whilepoint B may lie on the PPF.
B) the economy's PPF could have shifted outward and point A was apoint on the economy's old PPF.
C) the economy has moved from one point on its PPF to another pointon the same PPF.
D) a or b
E) a or c
24.
The condition in an economy that makes a "rationing device" anecessity is the fact that
A) the economy is organized around free markets.
B) the economy is centrally planned by the government.
C) scarcity exists.
D) there are fewer types of goods than there are people in theeconomy.
25.
Expansionary fiscal policy actions include ____ government spendingand/or ____ taxes, while contractionary fiscal policy actionsinclude ____ government spending and/or ____ taxes.
A) increasing; increasing; decreasing; decreasing
B) decreasing; decreasing; increasing; increasing
C) increasing; decreasing; increasing; decreasing
D) decreasing; increasing; increasing; decreasing
E) increasing; decreasing; decreasing; increasing
26.
A price ceiling is a government-mandated
A) minimum price below which legal trades cannot be made.
B) maximum price above which legal trades cannot be made.
C) minimum price above which legal trades cannot be made.
D) maximum price below which legal trades cannot be made.
27.
In year 1 the CPI is 144.1, and in year 2 the CPI is 151. IfSarah's salary was $33,500 in year 1, what salary in year 2 wouldcause her to exactly "keep up with inflation"?
A) $50,585
B) $48,274
C) $40,508
D) $35,104
28.
One measure of the inflation rate is the
A) sum of the CPIs of adjacent years.
B) percentage change in the CPI of adjacent years.
C) percentage change in the Real GDP of adjacent years.
D) GDP minus the Real GDP in a year.
29.
Expansionary fiscal policy is ineffective if
A) there are idle resources in the economy.
B) the MPC is less than 0.60.
C) the government has a budget surplus.
D) there is complete crowding out.
E) a and d
30.
Suppose the economy goes from a point on its unchanging PPF to apoint down and to the left of it. This could be due to
A) a gain of resources.
B) a loss of resources.
C) technological improvement in the production of both goods.
D) a new law that interferes with economic efficiency.
31.
A decrease in the price of electricity will cause
A) a movement down the SRAS curve.
B) a movement up the SRAS curve.
C) a leftward shift in the SRAS curve.
D) a rightward shift in the SRAS curve.
E) no change regarding the SRAS curve
32.
Which of the following is an example of crowding out?
A) A decrease in the rate of growth of the stock of money decreasesGDP.
B) A deficit causes an increase in interest rates, which causes adecrease in investment spending.
C) An increase in tariffs causes a decrease in imports.
D) A decrease in government housing subsidies causes an increase inprivate spending on housing.
33.
A rightward shift in the demand curve for tennis balls could becaused by
A) a fall in the price of tennis balls.
B) a fall in the price of tennis rackets.
C) a rise in the price of tennis lessons.
D) a fall in income, assuming tennis balls are a normal good.
34.
Here is a consumption function: C = C0 + MPC(Yd). If MPC is 0.80,then we know that
A) as Yd rises by $1, Co rises by $0.80.
B) as Yd rises by $1, C rises by $0.80.
C) Yd rises by $0.80.
D) as C0 rises by $0.80, Yd rises by $1.
35.
Suppose a drop in stock prices makes people feel less wealthy. Thiswould cause ____ the economy's AD curve.
A) movement down along
B) movement up along
C) a rightward shift of
D) a leftward shift of
36.
An economy is producing its Natural Real GDP when the rate ofunemployment is equal to the ____ unemployment rate.
A) frictional
B) structural
C) sum of the frictional unemployment rate and the structural
D) seasonal
E) cyclical
37.
Who would be most likely to agree that "People do not always savemore as interest rates rise"?
A) a classical economist
B) John Maynard Keynes
C) an efficiency wage theorist
D) a and b
E) a, b, and c
38.
The U.S. income tax is currently a ____ tax.
A) progressive
B) proportional
C) regressive
D) proactive
39.
The question of U.S. budget deficits and their impact on the U.S.economy is dealt with in the study of
A) microeconomics.
B) managerial economics.
C) macroeconomics.
D) consumer economics.
40.
John Maynard Keynes believed that wages may be inflexible in thedownward direction. Consequently, an economy
A) could get stuck in long-run equilibrium.
B) could get stuck in a recessionary gap.
C) could get stuck in an inflationary gap.
D) would always produce more than Natural Real GDP.
E) b and c

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ECON101 Study Guide - Midterm Guide: Economic Surplus, Limited Liability, Demand Curve

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