ECON*1050 Mock Final Exam - Fall 20141

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

1) Consider the following list: a worker with training in video gaming technology, 10 hectares of arable land insouthern Ontario, a fishing trawler in Nova Scotia, an ice-cream truck at a park in Quebec. Each of these is anexample of

A) a capital resource.B) goods and services.C) a factor of production.D) an economic service.E) a commodity.

2) Economics can best be described asA) a normative science.B) the study of how to reduce inflation and unemployment.C) the study of the use of scarce resources to satisfy unlimited human wants.D) the study of how a society ought to allocate its resources.E) the application of sophisticated mathematical models to address social problems.

3) Because resources are scarce, individuals are required toA) make choices among alternatives.B) improve production but not distribution.C) improve distribution but not production.D) use resources inefficiently.E) sacrifice production but not consumption.

4) Suppose there are only three alternatives to attending a "free" social event: read a novel (you value this at $10),go to work (you could earn $20), or watch videos with some friends (you value this at $25). The opportunitycost of attending the social event is

A) $10. B) $20. C) $25. D) $45. E) $55.

5) A country's production possibilities boundary shows thatA) when a society combines its resources inefficiently, it cannot produce more of one good without

producing less of the other good.B) the supply for goods always exceeds the demand.C) all points inside the boundary are preferred to all points on the boundary.D) when a society combines its resources efficiently, it is always possible to produce more of all goods.E) when a society combines its resources efficiently, it cannot produce more of one good without producing

less of the other good.

6) A straight-line production possibilities boundary differs from a concave boundary in which of the followingways?

A) The straight-line boundary shows opportunity cost, whereas the concave boundary does not.B) The straight-line boundary illustrates constant opportunity costs, whereas the concave boundary

illustrates increasing opportunity costs.C) A straight-line boundary is associated with a command economy, whereas a concave boundary is

associated with a free-market economy.D) The concave boundary illustrates constant opportunity costs, whereas the straight-line boundary

illustrates decreasing opportunity costs.E) The straight-line boundary does not show scarcity, whereas the concave boundary does.

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7) Specialization of labour led to greater efficiency in the allocation of resources because ofA) the use of barter.B) an increase in total work effort.C) greater reliance on self-sufficiency.D) the opportunity cost of labour increased.E) the principle of comparative advantage.

8) The term "quantity demanded" refers to theA) total amount of a good that is actually purchased during a given period of time.B) total amount of a good that people wish to buy, regardless of price.C) total amount of a good that purchasers wish to purchase at a given price during a given period of time.D) product of advertising, and is unrelated to price.E) entire relationship between desired purchases and possible prices.

9) A change in demand is said to take place when there is aA) shift of the demand curve.B) shift of the supply curve.C) price change.D) movement along the demand curve.E) quantity change.

10) If goods X and Y are substitutes and the price of X falls, all other things being equal, the demand curve for Ywill

A) be indeterminate. B) shift to the right. C) shift to the left. D) not shift at all.

11) Suppose that many coal mines are shut for environmental reasons. This will causeA) no change in the supply curve, only a change in price.B) a movement up the supply curve.C) a decrease in the supply of coal (a leftward shift of the supply curve).D) an increase in the supply of coal (a rightward shift of the supply curve).E) a movement down the supply curve.

The supply and demand schedules for dozens of roses are given below:

PriceQuantity Supplied

per periodQuantity Demanded

per period$10 200 500$20 300 450$30 400 400$40 500 350$50 600 300

TABLE 3-1

12) Refer to Table 3-1. The equilibrium price for a dozen roses isA) $30. B) $50. C) $20. D) $10. E) $40.

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13) The price elasticity of demand measures the responsiveness ofA) supply to demand changes.B) equilibrium changes.C) quantity demanded to changes in the price.D) demand to supply changes.E) the price to changes in quantity demanded.

14) If the price elasticity of demand is 0.5, then a 10% increase in price results in aA) 5% decrease in total revenues.B) 5% decrease in quantity demanded.C) 0.5% decrease in quantity demanded.D) 5% increase in quantity demanded.E) 50% reduction in quantity demanded.

15) Rania is selling boxes of cookies door to door in her neighbourhood. At a price of $10 per box she sold 40 boxesper day. When the price was reduced to $4 per box she sold 100 boxes per day. Assuming that the demandconditions were unchanged, what is the price elasticity of demand for Rania's cookies?

A) -1.7 B) 1.17 C) 1 D) 0 E) 0.85

16) A value of zero for the elasticity of supply of some product implies thatA) the supply curve is horizontal.B) supply is highly responsive to price.C) the product will not be supplied at any price.D) there is no supply.E) the supply curve is vertical.

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The diagram below shows supply, demand, and quantity exchanged of Monday matinee movie tickets. Assume it is a perfectlycompetitive market.

FIGURE 12-4

17) Refer to Figure 12-4. Suppose a disequilibrium price of $7.50 per movie ticket is imposed in this market. Theconsumer surplus becomes ________ and the producer surplus becomes ________.

A) $2.50; $7.50B) $62.50; $125C) $62.50; $250D) $31.25; $156.25E) $0; $62.50

18) Refer to Figure 12-4. Suppose a disequilibrium price of $7.50 per movie ticket is imposed on this market. Thetotal economic surplus is now ________, which is ________ than the total economic surplus generated at theallocatively efficient level of output.

A) $125; $250 lessB) $187.50; $187.50 lessC) $62.50; $125 lessD) $125; $125 lessE) $187.50; $62.50 less

19) Refer to Figure 12-4. If a disequilibrium price of $7.50 per movie ticket were imposed on this market, thismarket would not be allocatively efficient because1) the sum of consumer and producer surplus would not be maximized;2) the marginal benefit to consumers of the last movie consumed would be greater than the marginal cost to theseller;3) the marginal cost to the seller of the last movie consumed would be more than the marginal benefit toconsumers.

A) 1 only B) 2 only C) 3 only D) 1 and 2 E) 2 and 3

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Recently there have been proposals that a tax be imposed on sugar-laden soft drinks in an attempt to reduce their consumption. Assumefor simplicity that all bottled soft drinks are the same size. Suppose the initial market equilibrium is P = $2.00 and Q = 1000.

FIGURE 4-4

20) Refer to Figure 4-4. Suppose the government imposes a tax of $0.60 per soft drink purchased. The price paid bythe consumer becomes

A) $2.60 B) $2.00 C) $2.40 D) $1.80 E) $2.20

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FIGURE 14-5

21) Refer to Figure 14-5. Suppose this labour market is competitive. If a minimum wage of W3 is then imposed, thequantity of labour hired would be

A) Q1. B) Q2. C) Q3. D) Q4. E) Q5.

22) If the equilibrium price for some product is $1000, a price ceiling of $1200 will result inA) massive surpluses of the good.B) the same general effects as a price floor of $1200.C) the same general effects as an administered price of $1200.D) the same general effects as a price ceiling of $600.E) no effects because the price ceiling is not binding at that price.

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FIGURE 5-7

23) Refer to Figure 5-7. The market for good X is in equilibrium at P0 and Q0. Now suppose the governmentimposes a ________ at P2. One result would be ________.

A) price ceiling; an increase in economic surplus represented by areas 2 and 5B) price floor; an increase in economic surplus represented by area 1C) price ceiling; a deadweight loss represented by areas 5 and 6D) price floor; a deadweight loss represented by areas 5 and 6E) price floor; a deadweight loss represented by area 8

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Refer to the figure below to answer the following question.

Figure 7.2.4

24) Refer to Figure 7.2.4. The graph shows the demand for shoes in Brazil, DB, the supply of shoes produced inBrazil, SB, and the market equilibrium in Brazil when it does not trade internationally. If the world price of apair of shoes is $20 and Brazil opens up and trades internationally, producer surplus in Brazil ________ andconsumer surplus in Brazil ________.

A) decreases by area C + D; increases by area CB) decreases by area C; increases by area C + DC) increases by area C + D; decreases by area CD) increases by area D; decreases by area DE) increases by area C; decreases by area C and a deadweight loss equal to area D arises

25) A tariff imposed by Canada on Japanese cars ________ the price of cars in Canada and ________ the quantityof Japanese cars imported into Canada.

A) raises; increasesB) raises; does not changeC) lowers; decreasesD) raises; decreasesE) lowers; increases

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Refer to the figure below to answer the following questions.

The figure shows the market for shirts in Canada, where D is the domestic demand curve and S is the domestic supply curve.The world price is $20 per shirt. Canada imposes a tariff on imported shirts of $4 per shirt.

Figure 7.3.1

26) Refer to Figure 7.3.1, the tariff ________ Canada's imports of shirts by ________ million shirts per year.A) increases; 4B) decreases; 8C) increases; 16D) increases; 8E) decreases; 16

27) Refer to Figure 7.3.1, the tariff ________ the domestic production of shirts in Canada by ________ per year.A) decreases; 16 millionB) increases; 24 millionC) increases; 4 millionD) decreases; 8 millionE) increases; 8 million

28) Economists use the term "marginal utility" to describe theA) total satisfaction received from consumption of a good.B) change in total satisfaction caused by consumption of an additional unit of a good.C) price paid for every unit consumed.D) average utility of each unit of a good consumed.E) inverse of the measure of total utility.

29) The "law" of diminishing marginal utility implies that theA) total utility is constant as more units are consumed.B) last unit of a good consumed will contribute most to the consumer's satisfaction.C) marginal utility of a good diminishes over time.D) first unit of a good consumed will contribute most to the consumer's satisfaction.E) total utility is negative.

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The table below shows the quantities of toffee bars and bags of cashews that a consumer could consume over a 1-week period.

Toffee (bars) Cashews (bags)

UnitsMarginal

UtilityTotal Utility

MarginalUtility

Total Utility

1 10 10 12 122 8 18 10 223 5 23 7 294 3 26 5 345 1 27 2 366 0 27 1 377 0 27 0 27

TABLE 6-1

30) Refer to Table 6-1. If the prices of toffee bars and bags of cashews are both $1 and this consumer has $7 perweek to spend on these two snacks, how many of each will he/she purchase to maximize utility?

A) 4 toffee bars and 3 bags of cashewsB) 6 toffee bars and 1 bag of cashewsC) 3 toffee bars and 4 bags of cashewsD) 2 toffee bars and 5 bags of cashewsE) 5 toffee bars and 2 bags of cashews

31) The condition required for a consumer to be maximizing utility, for any pair of products, X and Y, isA) MUX = MUY.B) MUX/PY = MUY/PX.C) PX = PY.D) PX(MUX) = PY(MUY).E) MUX/PX = MUY/PY.

32) A single proprietorship is a form of business organization whichA) has one owner-manager who is personally responsible for the firm's actions and debts.B) has a single owner but has directors who are responsible for the firm's debts.C) has unlimited access to money capital.D) allows easy transferability of ownership by the trading of shares.E) has limited liability.

33) A firm that has two or more owners who share decision-making power as well as the firm's profits is calledA) a corporation.B) a joint-stock company.C) a partnership.D) a non-profit organization.E) a single proprietorship.

34) Which of the following statements is NOT true of a corporation?A) It is an entity separate from the individuals who own it.B) It can enter into contracts.C) It can incur debt that is an obligation of the corporation but not of its individual owners.D) It has the right to sue and be sued.E) It is legally obliged to distribute all profits to shareholders.

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35) It is assumed in standard economic theory that a firm makes decisions in an effort toA) have a highly diversified product.B) become as large as possible.C) maximize its profits.D) maximize its revenue.E) be favoured politically.

36) The opportunity cost of any factor of production isA) its accounting cost.B) the benefit forgone by not using it in its worst alternative.C) the money actually paid to the factors of production.D) its explicit cost.E) the benefit forgone by not using it in its best alternative.

37) The theory of perfect competition is built on several assumptions, including thatA) the individual firm can affect the price of the product it sells.B) any firm can easily enter or leave the industry.C) the individual firm can influence demand by advertising.D) there are few producers of an identical product.E) each firm must earn economic profits to remain in the industry.

38) Monopolistic firms do not have supply curves becauseA) monopolists get to choose their price-quantity combination along the demand curve.B) monopolists face a given market price.C) their marginal costs cannot be calculated.D) they are not constrained by the marginal costs of production.E) their output is a fixed quantity.

39) The period of time over which the firm can vary any of its inputs for a given production technology is called theA) immediate run.B) very-short run.C) long run.D) very-long run.E) short run.

40) Which of the following factors of production is most likely to be variable in the short run?A) landB) capital equipmentC) labourD) entrepreneurshipE) technology

41) Consider a firm in the short run. Average product is at its maximum whenA) average product equals marginal product and marginal product is falling.B) marginal product is maximized.C) the maximum quantity of the variable input is employed.D) diminishing returns cease to operate.E) total product is maximized.

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The following data show the total output for a firm when different amounts of labour are combined with a fixed amount of capital.Assume that the wage per unit of labour is $10 and the cost of the capital is $50.

Labour per period Total output per period0 01 102 303 904 1325 150

TABLE 7-3

42) Refer to Table 7-3. The marginal product of labour is at its maximum when the firm changes the amount oflabour hired from

A) 0 to 1 unit. B) 1 to 2 units. C) 2 to 3 units. D) 3 to 4 units. E) 4 to 5 units.

43) In economics, the term "fixed costs" meansA) costs that do not vary with the level of output produced.B) implicit costs.C) costs incurred in the past that involve no implicit costs.D) costs that are never accounted for.E) opportunity costs.

44) Consider a firm's short-run cost curves. Which one of the following types of cost declines over the whole rangeof output?

A) total fixed costB) marginal costC) average fixed costD) total variable costE) average variable cost

45) A firm's short-run marginal cost curve is decreasing whenA) marginal product is increasing.B) total fixed cost is decreasing.C) average fixed cost is increasing.D) marginal product is decreasing.E) capacity is reached.

46) A firm in a perfectly competitive industry will maximize profits by adjustingA) average total cost until it equals price.B) price until marginal revenue equals marginal cost.C) output until average revenue equals short-run average total cost.D) output until marginal cost equals marginal revenue.E) price until average revenue equals average total cost.

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47) Suppose ABC Corp. is a firm producing newsprint in a perfectly competitive industry. Its output is 1500 tonnesper month, the marginal cost of the last tonne produced is $710, and the average revenue per tonne is $620. Inthe short run, this firm should

A) The price of the product is not known, so it is not possible to determine.B) reduce output.C) increase output until marginal revenue is equal to marginal cost.D) increase output until average revenue is equal to marginal cost.E) definitely shut down.

FIGURE 9-1

48) Refer to Figure 9-1. The diagram shows cost curves for a perfectly competitive firm. If the market price is P1,the profit-maximizing firm in the short run should

A) produce output A.B) produce output B.C) produce output C.D) produce output D or shut down as it doesn't really matter which.E) definitely shut down.

49) Refer to Figure 9-1. The diagram shows cost curves for a perfectly competitive firm. If the market price is P4,the profit-maximizing firm in the short run should produce output

A) G. B) C. C) H. D) I. E) F.

50) Refer to Figure 9-1. The diagram shows cost curves for a perfectly competitive firm. The price at which thefirm earns zero economic profits is

A) P1. B) P2. C) P3. D) P4. E) P5.

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51) If a perfectly competitive firm in the short run is producing where P = ATC = MC, this firm isA) incurring losses.B) earning economic profits.C) obliged to shut down.D) on the downward-sloping portion of its demand curve.E) at its profit-maximizing output level.

52) A perfectly competitive firm is currently producing an output level where price is $10.00, average variable costis $6.00, average total cost is $10.00, and marginal cost is $8.00. In order to maximize profits, this firm should

A) increase the market price.B) shut down.C) decrease its output.D) increase its output.E) not change its output — this firm is at its profit-maximizing position.

53) The short-run supply curve for a perfectly competitive firm isA) the industry supply curve.B) its rising portion of the average-variable-cost curve.C) its entire marginal-cost curve.D) its marginal-cost curve above the average-variable-cost curve.E) its average-revenue curve.

54) A monopoly is distinguished from a firm operating under any other market structure in the following way: themonopoly

A) can choose its output level.B) faces a demand curve which is identical to the market demand curve.C) can choose its level of cost.D) does not produce at a profit-maximizing level of output.E) charges a price higher than its average revenue.

55) For a single-price monopolist, marginal revenue falls faster than price (as output rises) becauseA) the firm has no supply curve.B) in order to sell additional units, the price must be lowered on all units.C) the cost of producing extra units of output increases as production is increased.D) profits are maximized when marginal cost equals marginal revenue.E) none of the above — marginal revenue does not fall faster than price.

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PriceQuantity

Demanded$8 5$7 6$6 7$5 8$4 9$3 10$2 11

TABLE 10-1

56) Refer to Table 10-1. For a single-price monopolist, the marginal revenue associated with increasing sales from6 to 7 units is

A) -4. B) -2. C) 0. D) 2. E) 4.

57) Refer to Table 10-1, which displays the demand schedule for a single-price monopolist. At what level of outputis total revenue maximized for this firm?

A) between 6 and 7 unitsB) between 7 and 8 unitsC) between 8 and 9 unitsD) between 9 and 10 unitsE) between 10 and 11 units

58) If a single-price monopolist sets price where the price elasticity of demand exactly equals 1, itsA) total profits are at a maximum.B) total revenue is at its maximum.C) total revenue is rising, although marginal revenue is falling.D) total revenue is falling.E) marginal revenue is always positive.

59) For a monopolist, the profit-maximizing level of output occurs whereA) MR = MC. B) MC = price. C) MR = AC. D) MC = 0. E) MC = AR.

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Suppose a monopolist faces the demand curve and cost curves shown below.

FIGURE 10-4

60) Refer to Figure 10-4. In order to maximize its profits, a perfect-price-discriminating monopolist produces thequantity

A) Q0. B) Q1. C) Q2. D) Q3. E) Q4.

61) Refer to Figure 10-4. If the monopolist is practicing perfect price discrimination and is maximizing its profits,the total revenue is represented by the area

A) 0P1dQ1. B) 0P3cQ2. C) 0P2bQ0. D) 0P5cQ2. E) 0P4aQ0.

62) If a monopolist is practicing perfect price discrimination, then the following equation is true:A) MC = 1/2 MR at the profit-maximizing level of output.B) MR = 1/2 P for any unit.C) MR = P for all units.D) P = AVC at the profit-maximizing level of output.E) AR = ATC at the profit-maximizing level of output.

63) A characteristic common to most imperfectly competitive markets isA) a homogeneous product.B) unexploited economies of scale.C) non-price competition among firms.D) inelastic market demand curves.E) common pricing among firms.

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64) A monopolistically competitive firm and a monopoly are similar becauseA) each firm can raise its price without losing all of its sales.B) both firms must behave strategically toward other firms in the industry.C) both firms always operate at their point of minimum average total cost.D) each firm has a large number of small competitors.E) both firms will earn zero profits in the long run.

65) One difference between a perfectly competitive market and a monopolistically competitive market is thatA) there is no product differentiation in monopolistic competition.B) there are no barriers to entry in monopolistic competition.C) there is no product differentiation in perfect competition.D) there is strategic interaction among firms in monopolistic competition.E) there are no barriers to exit in monopolistic competition.

66) If there are economic profits in a monopolistically competitive industry, they will generally be competed awaythrough the

A) manipulation of the demand curve.B) increasing advertising budgets of existing firms.C) entry of new firms.D) introduction of brand name products by existing firms.E) exit of existing firms.

67) One prediction about monopolistic competition is that it has higher unit costs than perfect competition. But it isunreasonable to conclude that monopolistic competition is therefore bad for consumers because

A) consumers benefit from an increased variety of products.B) higher production costs means more employment.C) consumers benefit from products becoming more homogeneous.D) consumers benefit from lower prices.E) consumers benefit because of an increase in quantity available.

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The diagram below shows selected cost and revenue curves for a firm in a monopolistically competitive industry.

FIGURE 11-1

68) Refer to Figure 11-1. What price will this profit-maximizing firm set?A) $25 B) $5 C) $10 D) $20 E) $15

69) Refer to Figure 11-1. Assuming that this firm is producing its profit-maximizing level of output, what are theprofits or losses being earned by this firm?

A) $1000 B) - $1000 C) $500 D) - $500 E) $2000

70) When a monopolistically competitive industry is in long-run equilibrium, the excess capacity in an individualfirm is indicated by the difference between

A) the output at which ATC is at a minimum and the output at which price equals marginal cost.B) the output at which ATC is at a minimum and the output at which marginal revenue is equal to marginal

cost.C) zero and the output at which the demand curve is tangent to the ATC curve.D) price and average cost.E) price and marginal cost.

71) One characteristic of oligopolistic markets isA) zero profits in the long run.B) mutual interdependence between firms.C) ease of entry and exit.D) a large number of firms in the industry.E) a horizontal demand curve facing each individual firm.

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72) A duopoly isA) an oligopoly with only two sellers.B) a monopolist that has two related products.C) an oligopoly with only two buyers.D) an oligopoly with only two products.E) a monopoly firm that has only two suppliers.

73) For firms in an oligopoly, the main advantage of explicit collusion is that itA) removes much of the uncertainty about rivals' reactions.B) makes all firms more productively efficient.C) eliminates the gains from cheating.D) reduces the cost per unit of advertising.E) leads to greater product differentiation.

74) In a typical oligopolistic market, there areA) no barriers to entry and firms sell homogeneous products.B) substantial entry barriers, and firms are too large to strategically interact with each other.C) substantial barriers to entry and firms interact strategically with each other.D) no barriers to entry and firms interact strategically with each other.E) no barriers to entry, but firms sell differentiated products.

75) Consider an example of the prisoner's dilemma where 2 firms are making sealed bids on a contract and eachfirm is allowed to bid either $100 or $180. If both firms bid the same price, the job is shared equally and eachfirm earns half the value of its bid. Otherwise the lowest bidder wins the contract and receives the full value ofits bid (and the other bidder earns zero). The non-cooperative outcome in this situation is

A) both firms bid $90.B) both firms bid $180.C) both firms bid $100.D) one firm bids $100, the other firm bids $180.E) both firms bid $50.

76) Which of the following is an incorrect statement about a Nash equilibrium?A) In a Nash equilibrium, all players are maximizing their payoffs given the current behaviour of the other

players.B) A Nash equilibrium is an example of a non-cooperative equilibrium.C) In a Nash equilibrium, all players are better off than they would be with any other combination of

strategies.D) Once a Nash equilibrium is established, no individual firm has an incentive to depart from it.E) A Nash equilibrium is a self-policing equilibrium.

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The payoff matrix below shows the payoffs for Firm A and Firm B, each of whom can either "cooperate" or "cheat." The numbers inparentheses are (payoff for A, payoff for B).

Firm B

Firm A Cooperate Cheat

Cooperate (30, 30) (10, x)Cheat (x, 10) (20, 20)

TABLE 11-2

77) Refer to Table 11-2. Of the choices provided below, what is the minimum value for x in order for both firms'cheating to be a Nash equilibrium?

A) 40 B) 25 C) 60 D) 80 E) 70

78) Refer to Table 11-2. If x = 40, what is the Nash equilibrium in this game?A) (Firm A: cheat, Firm B: cooperate)B) (Firm A: cooperate, Firm B: cooperate)C) (Firm A: cooperate, Firm B: cheat)D) (Firm A: cheat, Firm B: cheat)E) there is no Nash equilibrium for this value of x

79) Economists generally view pollution asA) a negative economy.B) a negative externality.C) a non-excludable good.D) an economic "bad" that must be eliminated entirely.E) a positive externality.

80) When firms in an industry have fully internalized a production externality,A) they produce at more than the optimal level of output.B) it is not possible to achieve allocative efficiency.C) the marginal social cost is zero.D) they produce at less than the optimal level of output.E) they bear the entire social marginal cost of production.

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The figure below shows the marginal benefit to consumers, MB, the marginal cost to private firms, MCP, and the marginal cost tosociety, MCS, at each level of output of some good.

FIGURE 17-1

81) Refer to Figure 17-1. A negative externality is depicted because theA) marginal social benefit to consumers is diminishing with greater output.B) optimal level of output occurs where marginal private benefit is positive.C) optimal level of output occurs where marginal private cost is positive.D) marginal social cost is greater than the marginal private cost.E) marginal social cost is greater than the marginal social benefit.

82) Refer to Figure 17-1. The price that would occur in a competitive market in the absence of governmentintervention is

A) P2.B) P3.C) P4.D) P1.E) not possible to know from the information given.

83) The optimal amount of pollution abatement is such thatA) the total benefit of reducing pollution is equal to the total cost of reducing pollution.B) the marginal private cost of reducing pollution is just equal to the profit of the polluting firms.C) there is no remaining pollution.D) the marginal social cost of reducing pollution is just equal to the marginal social benefits from doing so.E) none of the above; there is no optimal amount of pollution abatement.

84) The marginal benefit of reducing pollution and the marginal cost of reducing pollution are given by thefollowing equations: MB = -2U2 + 18, and MC = 2U2 + 2, where U is the number of units of pollutionabatement. What is the optimal level of pollution abatement?

A) 0 B) 1 C) 2 D) 3 E) 4

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85) Suppose a farm that is polluting an underground water supply faces the following marginal costs for abatingunits of pollution:

1st unit abated, MC = $2502nd unit abated, MC = $4003rd unit abated, MC = $6504th unit abated, MC = $950

The marginal benefit to society from this farm abating units of pollution are as follows:1st unit abated, MB = $10002nd unit abated, MB = $8003rd unit abated, MB = $6504th unit abated, MB = $300

What is the socially optimal amount of pollution abatement for this farm?A) 0 units B) 1 units C) 2 units D) 3 units E) 4 units

86) If you consume some good, and by doing so you diminish other people's possible use of that good, we say thatthe good is

A) a public good.B) a common resource.C) not productively efficient.D) excludable.E) rivalrous.

87) A public good is a product that isA) produced by the government.B) rivalrous but nonexcludable.C) excludable but nonrivalrousD) excludable and rivalrous.E) nonexcludable and nonrivalrous.

88) Which of the following statements about public goods is true?A) The firms producing them must be listed on a public stock exchange.B) They cannot be publicly provided.C) They are unlikely to be provided by private, profit-seeking firms.D) They are essentially negative externalities.E) They respond to market signals.

89) Which of the following is the best description of a "free rider"? Someone whoA) consumes a good until the marginal benefit received from the last unit is zero.B) does not produce any goods but is able to consume them.C) receives the benefit of a good without having to pay for it.D) consumes a good until the marginal benefit received from the last unit is equal to the marginal cost of

producing the good.E) pays for a good but does not receive any benefit from the good.

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The diagram below shows the marginal benefit and marginal cost of a public good. This economy has 3 individuals, A, B and C. Thediagram shows the MB for each individual and a summation of their marginal benefits.

FIGURE 16-4

90) Refer to Figure 16-4. What is the optimal provision of this public good?A) Q B) Q1 C) Q2 D) Q3 E) Q4

91) Refer to Figure 16-4. The curve MBABC is derived byA) observation of the consumption of public goods at the optimal price.B) observation of the consumption of public goods at a price of zero.C) determining the private marginal cost of the public good.D) a horizontal summation of the marginal benefits of all individuals at each given price level.E) a vertical summation of the marginal benefits of all individuals at each level of output.

92) Why would it be inefficient for the government to charge a price for consuming a public good such as nationaldefence?

A) Too little national defence will be provided.B) The price cannot be set to cover all defence costs.C) The marginal cost of providing national defence is zero.D) Too much defence will be provided.E) No one will be willing to pay to consume any national defence.

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The table below shows the labour demand and labour supply schedules in a competitive labour market.

Wage Rate($/hour)

Quantity Demanded of Labour

(hours/month)

Quantity Suppliedof Labour

(hours/month)10 1300 50012 1000 100014 800 130015 400 150017 200 1800

TABLE 14-1

93) Refer to Table 14-1. If the wage rate is $15 per hour, how many hours per month are supplied to this marketbut are not actually employed?

A) 400 B) 1000 C) 1100 D) 0 E) 1500

94) Certain professions limit the number of students who are eligible to enroll in their programs in university -engineering, architecture, dentistry, and law, for example. Other things being equal, what is one predictedeffect of such restrictions?

A) increased wages across all segments of the labour marketB) decreased wages in the labour market outside of these professionsC) decreased wages across all segments of the labour marketD) increased wages in the labour market outside of these professionsE) there will be no effect on any wages

95) As a seller of labour services, a labour union is a form ofA) illegal cartel.B) monopoly.C) oligopoly.D) monopolistic competitor.E) monopsony.

96) For a monopsonist in a labour market, the firm's MC curve for labour lies ________ the competitive supplycurve for labour; just as the marginal revenue curve for a monopolist lies ________ the demand curve for itsproduct.

A) above; below B) below; above C) above; above D) below; below

97) If we compare the wage rate and the level of employment achieved in a competitive labour market with thosein a monopsonistic labour market, the latter will generate

A) a lower level of employment and a lower wage.B) the same outcomes as in a competitive labour market.C) a higher level of employment and a higher wage rate.D) a lower level of employment and a higher wage rate.E) a higher level of employment and a lower wage.

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The diagram below shows the supply and demand for labour in a hypothetical town in northern British Columbia, with only oneemployer, a logging company.

FIGURE 14-4

98) Refer to Figure 14-4. The wage paid by this monopsonistic firm will be ________ and employment will be________.

A) $35 per hour; 750 units of labourB) $30 per hour; 1000 units of labourC) below $25 per hour; below 750 units of labourD) between $25 and $35 per hour; between 750 and 1000 units of labourE) $25 per hour; 750 units of labour

99) Suppose there is a competitive market for retail workers at a large shopping mall that is large enough toconstitute its own labour market. The labour demand curve is QD = 1000 - 20(w). The labour supply curve isQS = 400 + 40(w). Suppose that a union now successfully organizes the workers at this mall and obtains a wagerate of $11 (but does not affect the demand curve). One result is

A) a decrease in employment of 60 workers.B) a decrease in employment of 20 workers.C) an increase in employment of 20 workers.D) an increase in employment of 40 workers.E) a decrease in employment of 40 workers.

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