3 Microeconomics Sample Multiple-Choice Questions SAMPLE QUESTIONS

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UNIT
3 Microeconomics
MULTIPLE-CHOICE
SAMPLE QUESTIONS
Sample Multiple-Choice Questions
Circle the letter of each correct answer.
1. True statements about the theory of the firm in
the short run and long run include which of the
following?
I. All input costs are fixed in the short run.
II. All input costs are variable in the long run.
III. At least one input price is fixed in the short
run.
(A) I only
3. Which of the following statements about a
firm’s production function are true?
I. When total product is at its maximum,
marginal product is zero.
II. When total product rises, marginal product
is rising.
III. When marginal product is greater than
average product, average product is rising.
IV. When marginal product is less than average
product, average product is falling.
(B) II only
(A) I and II only
(C) III only
(B) II and III only
(D) I and II only
(C) II and IV only
(E) II and III only
(D) I, III and IV only
(E) I, II, III and IV
TP
COSTS
OUTPUT
LRATC
A
B
C
D
E
MP
AP
INPUT
2. On the graph above, the onset of diminishing
marginal returns occurs beyond
(A) Point A.
(B) Point B.
(C) Point C.
(D) Point D.
(E) Point E.
Q
Q2
Q1
Q3
OUTPUT
4. According to graph above, if the firm is producing any quantity greater than Q2, the firm is
experiencing
(A) economies of scale.
(B) minimum efficient scale.
(C) diseconomies of scale.
(D) constant returns.
(E) increasing returns.
Advanced Placement Economics Microeconomics: Student Activities © National Council on Economic Education, New York, N.Y.
203
UNIT
3 Microeconomics
5. For a perfectly competitive firm, if the market
price is $8 then
(A) marginal revenue is greater than $8.
(B) marginal revenue is less than $8.
MULTIPLE-CHOICE
SAMPLE QUESTIONS
9. If the average variable cost of producing five
units of a product is $100 and the average variable cost of producing six units is $125, then the
marginal cost of producing the sixth unit is
(A) $125.
(C) marginal revenue is equal to $8.
(B) $2.
(D) average revenue is greater than $8.
(C) $250.
(E) average revenue is less than $8.
(D) $350.
(E) $750.
6. A firm’s short-run marginal cost curve will
eventually increase because of
(C) diseconomies of scale.
(D) diminishing marginal returns.
(E) increasing marginal returns.
7. Assume that in the short run at the profit-maximizing output, the price is lower than average
variable cost. The perfectly competitive firm
should
(A) increase its price.
COST/REVENUES
(A) more efficient production.
(B) economies of scale.
(continued)
E
P4
C
P2
P
ATC
D
P3
P1
MC
AVC
B
A
Q
Q1
Q2
Q3
Q4
QUANTITY
Use the graph above to answer questions 10, 11 and 12.
(B) decrease its price.
(C) increase its output.
(D) decrease its output.
(E) shut down.
8. Assume that a perfectly competitive firm is
operating where marginal revenue is greater
than marginal costs. To increase profits, the firm
should
(A) increase production.
(B) decrease production.
10. If the firm is in short-run equilibrium at a
price of P4, a perfectly competitive firm will
maximize profits by producing at which of the
following levels of output?
(A) Q
(B) Q1
(C) Q2
(D) Q3
(E) Q4
11. At which price will this perfectly competitive
firm make an economic profit?
(A) P
(B) P1
(C) P2
(D) P3
(E) P4
(C) increase price.
(D) decrease price.
(E) do nothing.
204
12. Which price-quantity combination represents
long-run equilibrium for this perfectly competitive firm?
(A) Point A (B) Point B (C) Point C
(D) Point D (E) Point E
Advanced Placement Economics Microeconomics: Student Activities © National Council on Economic Education, New York, N.Y.
UNIT
3 Microeconomics
ATC AVC
13. According to the graph above, if the firm is
producing at Q, the firm is
(A) losing money because the firm is operating
at the shutdown point.
(B) losing money because the price does not
cover average fixed cost.
(C) making profits because the price is above
average variable cost.
(D)making normal profits because the price
just covers average total cost.
(E) making normal profits because the price is
above average variable cost.
14. Which of the following represents the correct
relationship between the demand curve for a
perfectly competitive industry and the demand
curve for a perfectly competitive firm?
PC Industry Demand
PC Firm Demand
(A) Downward slope
to the right
Downward slope
to the right
(B) Downward slope
to the right
Perfectly elastic
(C) Perfectly elastic
Downward slope
to the right
(D)Perfectly elastic
Perfectly elastic
(E) Perfectly inelastic
Perfectly elastic
QUANTITY
0
QUANTITY
15. According to the graphs above, in which of the
following ways are the industry supply curve
and the equilibrium price most likely to
change in the long run?
Industry Supply Equilibrium Price
(A) Decrease
Decrease
(B) Decrease
Increase
(C) Increase
Decrease
(D)Increase
Increase
(E) Not change
Decrease
MC
COSTS/REVENUE
QUANTITY
MC
ATC
PRICE
PRICE
D
0
Q
(continued)
Firm
S
D
P
Industry
PRICE
MC
MULTIPLE-CHOICE
SAMPLE QUESTIONS
P2
ATC
AVC
P1
P
0
Q
Q1 Q2 Q3
QUANTITY
Use the graph above to answer questions 16 and 17.
16. If price is P2, the firm will
(A) produce Q units and earn a normal profit.
(B) produce Q units and earn an economic
profit.
(C) produce Q2 units and earn an economic
profit.
(D)produce Q3 units and earn an economic
profit.
(E) shut down.
Advanced Placement Economics Microeconomics: Student Activities © National Council on Economic Education, New York, N.Y.
205
UNIT
3 Microeconomics
MULTIPLE-CHOICE
SAMPLE QUESTIONS
(continued)
(A) produce Q units and earn an economic
profit.
(B) produce Q1 units and earn an economic
profit.
(C) produce Q1 units and earn a normal profit.
(D)produce Q2 units and earn an economic
profit.
(E) shut down.
18. Which of the following is true of a pure
monopolist’s demand curve?
(A) It is perfectly inelastic.
(B) It is perfectly elastic.
(C) It coincides with its marginal revenue
curve.
(D)It lies below its marginal revenue curve.
(E) It lies above its marginal revenue curve.
19. Average fixed cost is shown as the distance
between
(A) marginal cost and average variable cost.
(B) marginal cost and average total cost.
COSTS/REVENUE
17. If price is P1, the firm will
9
8
7
6
5
4
3
2
1
MC
ATC
MR
100 150 200
QUANTITY
D
300
Use the graph above to answer questions 20 and 21.
20. Assume that the firm in the graph above is an
unregulated monopolist. It will produce
(A) 175 units at a price of $7.00.
(B) 100 units at a price of $6.00.
(C) 100 units at a price of $8.00.
(D)150 units at a price of about $5.00.
(E) about 210 units at a price of about $4.00.
21. Assume that the firm in the graph is an unregulated monopolist. It will earn long-run
profits of
(C) average variable cost and average total cost.
(A) $0.
(D)average total cost and the horizontal axis.
(B) $300.
(E) marginal cost and the horizontal axis.
(C) $400.
(D)$500.
(E) $900.
206
Advanced Placement Economics Microeconomics: Student Activities © National Council on Economic Education, New York, N.Y.
UNIT
3 Microeconomics
MULTIPLE-CHOICE
SAMPLE QUESTIONS
(continued)
B
P5
C
P4
COSTS/REVENUE
COSTS/REVENUE
A
MC ATC
D
P3
E
P2
F
P1
P
Q
MR
Q1 Q2 Q3 Q4
QUANTITY
G
(A) P5 and Q.
(B) P4 and Q1.
(C) P3 and Q2.
(D) P2 and Q3.
(E) P1 and Q4.
23. Consumer surplus for this profit-maximizing
monopolist will be represented by area
(A) ABP5.
(B) ACP4.
(C) ADP3.
(D) AEP2.
(E) AGP.
24. The profit-maximizing price for this firm is
(C) P3.
(D) P4.
ATC
D
Q
Q1
Q2
Q3 Q4
QUANTITY
22. For the firm in the graph — an unregulated
monopolist — the price elasticity of demand is
unit elastic at a price and an output of
(B) P2.
MC
MR
Demand
Use the graph above to answer questions 22 through
25.
(A) P1.
P4
P3
P2
P1
P
(E) P5.
Questions 26, 27 and 28 are based on the graph
above of cost and revenue curves for a monopoly
firm.
26. To maximize profit, this monopolist should
produce at which of the following levels of
output?
(A) Q
(B) Q1
(C) Q2
(D) Q3
(E) Q4
27. The price the monopolist charges at the profitmaximizing level of output will be
(A) P.
(B) P1.
(C) P2.
(D) P3.
(E) P4.
28. The profit per unit will be
(A) PP1.
(B) PP3.
(C) P1 P2.
(D) 0P.
(E) 0P3.
25. Total revenue will be maximized when price is
equal to
(A) P.
(B) P1.
(D) P3.
(E) P4.
(C) P2.
Advanced Placement Economics Microeconomics: Student Activities © National Council on Economic Education, New York, N.Y.
207
UNIT
3 Microeconomics
MC
PRICE
A
ATC
B
C
D
E
MR
D
QUANTITY
MULTIPLE-CHOICE
SAMPLE QUESTIONS
(continued)
32. Allocative and productive efficiency are possible in which of the following unregulated market structures?
I. Perfectly competitive
II. Pure monopoly
III. Oligopoly
IV. Monopolistically competitive
(A) I only
(B) II only
(C) III only
(D) I and IV only
(E) II and IV only
Use the graph above to answer questions 29 and 30.
29. Under the usual regulated monopoly, the
socially optimal regulated price is
(A) A.
(B) B.
(C) C.
(D) D.
(E) E.
30. Under the usual regulated monopoly, the price
that allows fair return (where all costs are covered and includes a normal rate of return) is
(A) A.
(B) B.
(C) C.
(D) D.
(E) E.
31. What happens to a monopolist’s price, profits
and output if its fixed costs decrease?
Price
33. Which of the following is true of monopolists
who practice price discrimination?
(A) They charge all customers the same price.
(B) They earn a smaller profit than those who
do not practice price discrimination.
(C) They charge customers different prices
according to different elasticities of
demand.
(D) They produce lower quantities than pure
monopolists.
(E) They produce the same quantity of output
as pure monopolists.
34. Characteristics of an oligopolistic market
include which of the following?
I. Easy entry and exit of firms
II. Few firms
III. Interdependence among firms
Profits
Output
(A) Decrease
Increase
Decrease
(B) Decrease
Decrease
Decrease
(C) No change
Increase
No change
(D)Increase
Increase
Increase
(A) I only
(E) Decrease
No change
Increase
(B) II only
(C) III only
(D) II and III only
(E) I, II and III
208
Advanced Placement Economics Microeconomics: Student Activities © National Council on Economic Education, New York, N.Y.
UNIT
3 Microeconomics
MULTIPLE-CHOICE
SAMPLE QUESTIONS
Royal’s Burgers and Fries
35. In the long run, a monopolistically competitive
firm will make
(A) more economic profit than a perfectly
competitive firm.
(B) less economic profit than a perfectly competitive firm.
(C) more economic profit than a monopoly.
(D) more economic profit than an oligopolist.
(E) zero economic profit.
36. If all of the firms in an oligopoly could, without cost, form an industry-wide cartel to jointly maximize profits, the demand curve facing
the cartel would be
(A) less elastic than the industry demand curve.
(B) the same as the industry demand curve.
(C) more elastic than the industry demand
curve.
(D) perfectly inelastic.
(E) horizontal at the market-clearing price.
37. Characteristics of an oligopoly, which can be
demonstrated by game theory, include which
of the following?
I. Collusion can increase oligopolists’ profits.
II. Oligopolistic firms are interdependent.
III. Independent price decision making leads
to lower returns.
(A) I only
(B) II only
(C) III only
(D) I and II only
(E) I, II and III
38. The shapes of the marginal product curve and
the total product curve are best explained by the
(A) law of demand.
(B) law of supply.
(C) principle of diminishing marginal utility.
(D) least-cost rule.
(E) law of diminishing returns.
(continued)
Concentrate
Brewer’s Fries on Fries
and Burgers
Concentrate
on Burgers
Concentrate
on Fries
Concentrate
on Burgers
120, 85
150, 120
65, 100
50, 80
Use the payoff matrix above and the information
below to answer questions 39 and 40.
Two competing fast-food restaurants in a small town,
Royal’s Burgers and Fries and Brewer’s Fries and
Burgers, realize that each must consider the method
of attracting customers that the other is using. The
payoff matrix above illustrates the firms’ possible
strategies and the relative profits to each restaurant
under each possible outcome. (The first number in
each box represents the payoff to Brewer’s.)
39. Based on the payoffs above, which of the following statements is true?
(A) Brewer’s has a dominant strategy to concentrate on fries.
(B) Brewer’s has a dominant strategy to concentrate on burgers.
(C) Royal’s has a dominant strategy to concentrate on fries.
(D) Royal’s has a dominant strategy to concentrate on burgers.
(E) Neither restaurant has a dominant strategy.
40. What is the Nash Equilibrium in this game?
(A) Both fast-food restaurants should choose
to concentrate on fries.
(B) Both fast-food restaurants should choose
to concentrate on burgers.
(C) Brewer’s should choose to concentrate on
fries, and Royal’s should choose to concentrate on burgers.
(D) Brewer’s should choose to concentrate on
burgers, and Royal’s should choose to concentrate on fries.
(E) There is no Nash Equilibrium in this game.
Advanced Placement Economics Microeconomics: Student Activities © National Council on Economic Education, New York, N.Y.
209
UNIT
3 Microeconomics
SAMPLE QUESTIONS
(continued)
(A) A cartel is a coalition of firms that seek to
coordinate their decisions so all firms can
earn a higher economic profit.
43. If AAA advertises and Acme does not, Acme’s
profits will change by
(A) –$100.
(B) $0.
(C) $150.
(D) $300.
(E) $400.
(B) A cartel is a way for firms to earn more by
playing their dominant strategies.
44. If AAA advertises, Acme will
41. Which of the following is true of a cartel?
(C) A cartel is considered stable.
(D) A cartel seeks to maximize total revenue of
its members.
(E) A cartel sets price and output of its members in the same way that a price discriminating monopolist would.
42. Which of the following best characterizes the
firms in an oligopoly industry?
(A) Firms can easily enter the industry when
profits are high.
(B) There are more firms than in a monopolistically competitive industry.
(C) They are independent.
(D) They always collude to increase profits.
(E) They use strategic decision making.
AAA
MULTIPLE-CHOICE
Advertise
Don’t Advertise
Advertise
Acme: 150
AAA: 150
Acme: 400
AAA: –100
Acme
Don’t Advertise
Acme: –100
AAA: 400
Acme: 0
AAA: 0
(A) decide not to advertise because this is its
dominant strategy.
(B) advertise because this is its dominant
strategy.
(C) not have a dominant strategy.
(D) lose money.
(E) increase its profit by $400 if it advertises.
45. Which of the following statements is true?
(A) If AAA advertises, Acme’s dominant strategy is to advertise.
(B) If Acme advertises, AAA’s dominant strategy is NOT to advertise.
(C) The two firms are in a prisoner’s dilemma
game.
(D) The two firms would be better off to agree to
save their money and NOT advertise.
(E) A collusive agreement to advertise would
benefit both firms.
Use the payoff matrix above and the information
below to answer questions 43, 44 and 45.
Acme and AAA are the two major firms in the
industry. Each must decide whether to conduct a
television advertising campaign. The returns from
each firm’s decision depend on the decision of the
other. The profits resulting from each possible
combination of the firms’ decisions are given in the
payoff matrix above.
210
Advanced Placement Economics Microeconomics: Student Activities © National Council on Economic Education, New York, N.Y.

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