Chapter 13: Costs of production Flashcards

(69 cards)

1
Q

What is the total revenue?

A

The amount paid by buyers and received by sellers of a good, computed as the price of the good times the quantity sold

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2
Q

What do economists normally assume is the goal of a firm?

A

to maximize profit

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3
Q

What is the total cost of a firm?

A

The market value of the inputs a firm uses in production

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4
Q

What is the equation for profit?

A

total revenue - total cost

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5
Q

What are explicit costs?

A

Inputs that require an outlay of money by the firm

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6
Q

What are implicit costs?

A

input costs that do not require an outlay of money by the firm.

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7
Q

What is the implicit cost of starting a business?

A

The lost wages from another job

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8
Q

What are the explicit costs of a cookie business?

A

The cost of the flour, chocolate, etc.

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9
Q

How do accountants differ from economists in how they treat costs?

A

Economists are interested in studying how firms make decisions based on explicit and implicit costs; accountants have a job of keeping track of money going in and out. Accountants do not look at implicit costs.

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10
Q

How do economists and accountants treat capital differently?

A

An accountant will only view spent capital if it is a loan or with interest gained; Economists will also view the lost potential interest on spent savings as an implicit cost.

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11
Q

What is economic profit?

A

total revenue - total profit; including both explicit and implicit costs

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12
Q

What is an accounting profit?

A

total revenue minus total explicit costs

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13
Q

For a business to be profitable from an economists standpoint,

A

total revenue must cover all the opportunity costs, both -explicit and implicit

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14
Q

When economic profit is negative, a business…

A

fails to cover all the costs of production. the business will eventually close down.

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15
Q

Economic profit is usually — than accounting profit

A

lower

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16
Q

Farmer McDonald gives banjo lessons for $20 per hour. One day, he spends 10 hours planting $100 worth of seeds on his farm. What total cost has he incurred?

A

$300

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17
Q

Xavier opens up a lemonade stand for two hours. He spends $10 on ingredients and sells $60. in the same two hours he could have mowed his neighbour’s lawn for $40. Xavier earns what accounting profit and what economic profit?

A

Accounting profit: $50
Economic profit: $10

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18
Q

What is the production function?

A

The relationship between quantity of inputs used to make a good and the quantity of output of that good.

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19
Q

What is diminishing marginal product?

A

The property whereby the marginal product of an input declines as the quantity of the input increases

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20
Q

What is the marginal product?

A

The increase in output that arises from an additional unit of input

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21
Q

Assuming no general conditions change, why does factory work express diminishing marginal product?

A

Each additional worker takes up a smaller share of the space and cannot work effectively.

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22
Q

How does the total cost curve differ from the production function?

A

It has the inverse shape; it gets steeper with more quantity of output

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23
Q

How do you calculate the slope of a production function?

A

Change in output / each additional unit of Labour.

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24
Q

The slope of the production function measures the marginal — of a worker

A

product

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25
The production function becomes ---- over time
flatter
26
What does the slope of the Toal cost curve mean?
For each additional unit of quantity produced, the increase in the total cost. A steeper slope means it costs more per unit of quantity.
27
With diminishing product, as a firm's output increases...
the production function gets flatter while the total cost curve gets steeper
28
What are fixed costs?
Costs that do not vary with the quantity of output produced.
29
What is an example of a fixed cost?
Rent, salary of non-production employees. They are the same regardless of how much a firm produces
30
What are variable costs?
Costs that vary with the quantity of output produced
31
What are variable costs in a coffee shop?
Quantity of coffee beans, milk, sugar, paper cups; more baristas and workers.
32
A firm's total cost includes implicit and explicit costs, which also are divided into
fixed and variable costs
33
What is the average total cost?
total cost / quantity of output
34
What is the average fixed cost?
Fixed cost / quantity of output
35
What is average variable cost?
Variable cost / quantity of output
36
What is marginal cost in production?
The increase in total cost that arises from an extra unit of production
37
Mathematically, average total cost =
ATC=Total Cost/Quantity; ATC = TC/Q
38
Mathematically, Marginal cost =
Change in total cost/Change in quantity; MC=ΔTC/ΔQ
39
Average total cost tells us the cost of a typical unit of output if total cost is divided...
evenly over all units produced
40
Marginal cost tells us the increase in total cost that arises from producing ---
an additional unit of output
41
How does the marginal cost curve behave?
It rises as the quantity of output produced increases. The upward slope reflects diminishing marginal product.
42
How does the average total cost curve behave?
Initially sharply declines because the fixed cost becomes spread over more units, but eventually, the rising variable costs increase the total cost.
43
What is the efficient scale?
the quantity of output that minimizes average total cost.
44
Where is the efficient scale located?
At the bottom of the average total cost curve, at the intersection of the marginal cost.
45
When the MC is less than the ATC, the average total cost is...
falling
46
When the MC is greater than ATC, average total cost is...
increasing
47
The mathematics of average and marginal costs is the same as average and marginal grades- why?
If you have a low GPA and you get a really good grade, your GPA will increase by a lot
48
Why does the MC cross the ATC where it does?
At the minimum; at low levels of output, marginal cost is below ATC so ATC is falling; but afterwards, ATC rises. The point of intersection is by definition the minimum ATC
49
In real-world firms, marginal product behaves how?
It doe snot immediately start to fall after the first worker is hired- teams might actually work faster
50
When a firm starts to experience diminishing marginal product, the marginal cost curve starts to...
rise
51
When productivity increase when input increases, it is called
increasing marginal product
52
What are the three most important properties of cost curves
1) Marginal cost *eventually* rises with quantity of output 2) Average total cost is U-shaped 3) Marginal cost curve crosses the average total cost curve at the minimum of average total cost.
53
A firm is producing 1000units at a total cost of $5000; when it increases production to 1001 units, its total cost rises to $5008; what are the marginal costs and average total costs?
Marginal cost is $8; Average total cost is $5
54
A firm is producing 20 units with an average total cost of $25 and marginal cost of $15. If it increases production by 1 unit, what happens to average total cost?
it must decrease
55
The government imposes a $1000 per year licence on all pizza restaurants. Which cost curves shift?
Average total cost and Average fixed cost
56
Why do firms' long-run cost curves differ from firms' short-run cost curves?
The decisions are not as constrained; in the short term a company can only increase production by hiring workers; in the long term it can build new factories or close old ones.
57
An ATC with a short-run curve with a small factory has what shaped curve?
U shape with sharp decrease and longer increase, to on the small-end of quantity produced
58
What does the ATC curve look like in the short run with a medium factory
U-shaped, mid-end of quantity produced. Lower minimum than short with small factory
59
What are economies of scale?
The property whereby long-run ATC falls as quantity of output increases
60
What are diseconomies of scale?
The property whereby long-run ATC rises as quantity of output increases
61
What are constant returns to scale?
The property whereby long-run ATC states the same as quantity of output changes
62
A typical firm has economies of scale, constant returns to scale, and diseconomies of scale at what order?
left-to-right in relation increasing levels of output.
63
What is an example of a condition for economies of scale?
Higher production levels allow specialization among workers, which permits each worker to become better at a specific task.
64
What is a condition which allows diseconomies of scale?
coordination problems that are inherent in any large organization as managers become less effective at keeping costs down or putting workers to good use.
65
Long-run average total costs are often stretched and U-shaped because...
at low levels of production, the firm benefits form each size because it can take advantage of greater specialization; At high levels of production, the benefits of specialization have already been realized and the coordination problems grow more severe.
66
What is the lesson of Adam smith's pin factory?
Specialization among pin workers for a process of the pin-making makes the whole process faster; a larger pin factory is better than a small one.
67
If a higher level of production allows workers to specialize, a firm will likely exhibit ... of scale and ... average total cost
economies; falling
68
If Bombardier produces 9 jets per month, its long-run total cost is 9m per month. If it produces 10 jets per month, its cost is 11m per month. Bombardier exhibits...
diseconomies of scale
69