Question
Multiple Choice
Identify the
choice that best completes the statement or answers the question.
____ 1. In a competitive market,
the actions of any single buyer or seller will
a. have a negligible impact on
the market price.
b. have little effect on overall
production but will ultimately change final product price.
c. cause a noticeable change in
overall production and a change in final product price.
d. adversely affect the
profitability of more than one firm in the market.
Table
14-1
Quantity Price
1 13
2 13
3 13
4 13
5 13
6 13
7 13
8 13
9 13
____ 2.Refer to Table
14-1 .
The price and quantity relationship in the table is most likely that faced by a
firm in a
a. monopoly.
b. concentrated market.
c. competitive market.
d. strategic market.
____ 3. When buyers in a
competitive market take the selling price as given, they are said to be
a. market entrants.
b. monopolists.
c. free riders.
d. price takers.
____ 4. Of the following
characteristics of competitive markets, which are necessary for firms to be
price takers?
(i) There are many sellers.
(ii) Firms can freely enter or
exit the market.
(iii) Goods offered for sale are
largely the same.
a. (i) and (ii) only
b. (i) and (iii) only
c. (ii) only
d. All are necessary.
Name:
________________________ ID: A
2
____ 5. Suppose a firm in a
competitive market received $1,000 in total revenue and had a marginal revenue of
$10
for the last unit produced and
sold. What is the average revenue per unit, and how many units were sold?
a. $5 and 50
b. $5 and 100
c. $10 and 50
d. $10 and 100
____ 6. Total profit for a firm
is calculated as
a. (marginal revenue) minus
(average cost).
b. (average revenue) minus
(average cost).
c. (marginal revenue) minus
(marginal cost).
d. (price minus average cost)
times (quantity of output).
____ 7. As a general rule,
profit-maximizing producers in a competitive market produce output at a point where
a. marginal cost is increasing.
b. marginal cost is decreasing.
c. marginal revenue is
increasing.
d. price is less than marginal
revenue.
Figure
14-1
The graph below depicts the cost
structure for a firm in a competitive market.
____ 8.Refer to Figure
14-1 .
When price falls from P3to P1, the firm
finds that
a. fixed cost is higher at a
production level of Q1than it is at Q3.
b. it should produce Q1
units
of output.
c. it should produce Q3
units
of output.
d. it should shut down
immediately.
____ 9. When price is greater
than marginal cost for a firm in a competitive market,
a. marginal cost must be falling.
b. the firm must be minimizing
its losses.
c. there are opportunities to
increase profit by increasing production.
d. the firm should decrease
output to maximize profit.
Name:
________________________ ID: A
3
____ 10. When a profit-maximizing
competitive firm finds itself minimizing losses because it is unable to earn a
positive profit, this task is
accomplished by producing the quantity at which price is equal to
a. sunk cost.
b. average fixed cost.
c. average variable cost.
d. marginal cost.
____ 11. In the long run, a
profit-maximizing firm will choose to exit a market when
a. average fixed cost is falling.
b. variable costs exceed sunk
costs.
c. marginal cost exceeds marginal
revenue at the current level of production.
d. total revenue is less than
total cost.
____ 12. A profit-maximizing firm
in a competitive market is currently producing 200 units of output. It has
average revenue of $9 and average total cost of $7. It follows that the firm's
a. average total cost curve
intersects the marginal cost curve at an output level of less than
200 units. b. average variable
cost curve intersects the marginal cost curve at an output level of less than
200 units.
c. profit is $400.
d. All of the above are correct.
____ 13. A profit-maximizing firm
in a competitive market is able to sell its product for $7. At its current
level of
output, the firm's average total
cost is $10. The firm’s marginal cost curve crosses its marginal revenue curve
at an output level of 9 units.
The firm experiences a
a. profit of more than $27.
b. profit of exactly $27.
c. loss of more than $27.
d. loss of exactly $27.
____ 14. The following table
gives the average total cost of production for various levels of output for a
competitive
firm:
Q ATC
0 --
1 10
2 8
3 7
4 8
5 10
If the firm's fixed cost of
production is $3 and the market price is $10, how many units should the firm
produce to maximize its profit?
a. 1
b. 2
c. 3
d. 4
Name:
________________________ ID: A
4
____ 15. Which of the following
represents the firm's short-run condition for shutting down?
a. Shut down if TR < TC
b. Shut down if TR < FC
c. Shut down if P < ATC
d. Shut down if TR < VC
____ 16. Mrs. Smith operates a
business in a competitive market. The current market price is $8.50, and at her
profit-maximizing level of production, the average variable cost is $8.00 and
the average total cost is $8.25.
a. Mrs. Smith should shut down
her business in the short run but continue to operate in the
long run..
b. Mrs. Smith should continue to
operate in the short run but shut down in the long run.
c. Mrs. Smith should continue to
operate in both the short run and long run.
d. Mrs. Smith should shut down in
both the short run and long run.
____ 17. In a competitive market
the price is $8. A typical firm in the market has ATC = $6, AVC = $5, and MC =
$8.
How much economic profit is the
firm earning in the short run?
a. $0 per unit
b. $1 per unit
c. $2 per unit
d. $3 per unit
Figure
14-6
In the figure below, panel (a)
depicts the linear marginal cost of a firm in a competitive market, and panel
(b)
depicts the linear market supply
curve for a market with a fixed number of identical firms.
____ 18.Refer to Figure
14-6 .
If at a market price of $1.75, 52,500 units of output are supplied to this
market, how
many identical firms are
participating in this market?
a. 75
b. 100
c. 250
d. 300
Name:
________________________ ID: A
5
____ 19.
If the figure in panel (a) reflects
the long-run equilibrium of a profit-maximizing firm in a competitive
market, the figure in panel (b)
most likely reflects
a. perfectly inelastic long-run
market supply.
b. the idea that free entry and
exit of firms in the market lead to only one market price in
the long run.
c. the product of the individual
supply curves of all firms in the market.
d. the fact that zero profits
cannot be sustained in the long run.
____ 20. If all existing firms
and all potential firms have the same cost curves, there are no inputs in
limited quantities,
and the market is characterized
by free entry and exit, then the long-run
a. market supply curve is equal
to the sum of marginal cost.
b. supply curve for the market
must slope downward.
c. market supply curve must slope
upward.
d. supply curve for the market is
horizontal and equal to the minimum of long-run average
cost for each firm.
____ 21. When entry and exit
behavior of firms in an industry does not affect a firm's cost structure,
a. the long-run market supply
curve must be horizontal.
b. the long-run market supply
curve must be upward-sloping.
c. the long-run market supply
curve must be downward-sloping.
d. we can't tell anything about
the shape of the long-run market supply curve.
____ 22. Suppose a competitive
market is comprised of firms that face identical cost curves. The firms
experience an
increase in demand that results
in positive profits for the firms. Which of the following events are then most
likely to occur?
(i) New firms will enter the
market.
(ii) In the short run, price will
rise; in the long run, price will rise further.
(iii) In the long run, all firms
will be producing at their efficient scale.
a. (i) and (ii) only
b. (i) and (iii) only
c. (ii) and (iii) only
d. (i), (ii) and (iii)
Name: ________________________
ID: A
6
____ 23. Regardless of the cost
structure of firms in a competitive market, in the long run
a. firms will experience rising
demand for their products.
b. the marginal firm will earn
zero economic profit.
c. firms will experience a less
competitive market environment.
d. exit and entry is likely to
lead to a horizontal long-run supply curve.
____ 24. A market might have an
upward-sloping long-run supply curve if
a. firms have different costs.
b. consumers exercise market power
over producers.
c. all factors of production are
essentially available in unlimited supply.
d. the entry of new firms into
the market has no effect on the cost structure of firms in the
market.
____ 25. When new entrants into a
competitive market have higher costs than existing firms,
a. accounting profits will be the
primary determinant of entry into the market.
b. sunk costs become an important
determinant of the short-run entry strategy.
c. market price must be rising.
d. all firms will earn zero economic
profit once the new equilibrium is reached.