Economics Exam 3 Flashcards

1
Q

A firm increased its production and sales because the firm’s manager rearranged the layout of his
factory floor. This is an example of

A

positive technological change.

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2
Q

The difference between technology and technological change is that

A

technology refers to the processes used by a firm to transform inputs into output while
technological change is a change in a firm’s ability to produce a given level of output with a
given quantity of inputs.

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3
Q

A characteristic of the long run is

A

all inputs can be varied.

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4
Q

If a producer is not able to expand its plant capacity immediately, it is

A

operating in the short run.

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5
Q

Economic costs of production differ from accounting costs in that

A

economic costs add the opportunity costs of a firm using its own resources while accounting
costs do not.

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6
Q

Implicit costs can be defined as

A

the non-monetary opportunity cost of using the firm’s own resources.

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7
Q

The production function shows

A

the maximum output that can be produced from a set of inputs.

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8
Q

Vipsana’s Gyros House sells gyros. The cost of ingredients (pita, meat, spices, etc.) to make a gyro is
$2.00. Vipsana pays her employees $60 per day. She also incurs a fixed cost of $120 per day.
Calculate Vipsana’s average fixed cost per day when she produces 50 gyros using two workers?

A

$2.40

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9
Q

If four workers can produce 18 chairs a day and five can produce 20 chairs a day, the marginal
product of the fifth worker is

A

2 chairs.

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10
Q

The law of diminishing marginal returns states

A

that at some point, adding more of a variable input to a given amount of a fixed input will
cause the marginal product of the variable input to decline.

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11
Q

If 11 workers can produce a total of 54 units of a product and a 12th worker has a marginal product
of 6 units, then the average product of 12 workers is

A

5 units.

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12
Q

Marginal cost is equal to the

A

change in total cost divided by the change in output

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13
Q

Which of the following costs will not change as output changes?

A

total fixed cost

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14
Q

Which of the following equations is correct?

A

AFC + AVC = ATC

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15
Q

When the average total cost is $16 and the total cost is $800, then the number of units the firm is
producing is

A

50.

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16
Q

The formula for total fixed cost is

A

TFC = TC - TVC.

17
Q

Long-run cost curves are U-shaped because

A

of economies and diseconomies of scale.

18
Q

Economies of scale exist as a firm increases its size in the long run because of all of the following
except

A

as a firm expands its production, its profit margin per-unit of output increases.

19
Q

Which of the following is not a characteristic of a perfectly competitive market structure?

A

There are restrictions on exit of firms.

20
Q

A very large number of small sellers who sell identical products imply

A

the inability of one seller to influence the price.

21
Q

Suppose the equilibrium price in a perfectly competitive industry is $15 and a firm in the industry
charges $21. Which of the following will happen?

A

The firm will not sell any output.

22
Q

The demand curve for each seller’s product in perfect competition is horizontal at the market price
because

A

each seller is too small to affect the market price.

23
Q

The demand curve for an individual seller’s product in perfect competition i

A

horizontal.

24
Q

If the market price is $25 in a perfectly competitive market, the marginal revenue from selling the
fifth unit is

25
If, for a perfectly competitive firm, price exceeds the marginal cost of production, the firm should
increase its output.
26
For a firm in a perfectly competitive market, price is
equal to both average revenue and marginal revenue.
27
The marginal revenue curve for a perfectly competitive firm
is the same as its demand curve.
28
A firm will break even when
P = ATC.
29
A firm will make a profit when
P > ATC.
30
A perfectly competitive firm's supply curve is its
marginal cost curve above its minimum average variable cost.
31
A patent or copyright is a barrier to entry based on
government action to protect a producer.
32
Governments grant patents to encourage
research and development on new products.
33
To have a monopoly in an industry there must be
barriers to entry so high that no other firms can enter the industry.
34
To be a natural monopoly, a firm must
have economies of scale that are so large that it can supply the entire market at a lower cost than two or more firms.
35
A monopolist's profit-maximizing price and output correspond to the point on a graph
where marginal revenue equals marginal cost and charging the price on the market demand curve for that output.