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Scenario 13-4 Suppose that Abdul opens a coffee shop. He receives a loan from a bank for $100,000. He withdraws $50,000 from his personal savings account. The interest rate on the loan is 8%, and the interest rate on his savings account is 2%. -Refer to Scenario 13-4. Abdul's explicit cost of capital is


A) $8,000.
B) $4,000.
C) $2,000.
D) $1,000.

E) None of the above
F) B) and D)

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Table 13-1 Table 13-1   -Refer to Table 13-1. What is total output when 1 worker is hired? A)  10 B)  30 C)  45 D)  75 -Refer to Table 13-1. What is total output when 1 worker is hired?


A) 10
B) 30
C) 45
D) 75

E) A) and D)
F) None of the above

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For a firm, the relationship between the quantity of inputs and quantity of output is called the


A) profit function.
B) production function.
C) total-cost function.
D) quantity function.

E) A) and B)
F) All of the above

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Which of the following statements is not correct?


A) In the long run, there are no fixed costs.
B) Marginal cost is independent of fixed costs.
C) Economies of scale is a short-run concept.
D) Diminishing marginal product explains increasing marginal cost.

E) A) and B)
F) All of the above

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When average total cost rises if a producer either increases or decreases production, then the firm is said to be operating at efficient scale.

A) True
B) False

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If Danielle sells 300 wrist bands for $0.50 each, her total revenues are


A) $150.
B) $299.50.
C) $300.
D) $600.

E) B) and C)
F) All of the above

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Marginal costs are costs that do not vary with the quantity of output produced.

A) True
B) False

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Table 13-20 Listed in the table are the long-run total costs for three different firms. Table 13-20 Listed in the table are the long-run total costs for three different firms.   -Refer to Table 13-20. Firm B is experiencing diseconomies of scale. -Refer to Table 13-20. Firm B is experiencing diseconomies of scale.

A) True
B) False

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Table 13-2 Table 13-2   -Refer to Table 13-2. What is the marginal product of the fourth worker? A)  300 units B)  200 units C)  100 units D)  50 units -Refer to Table 13-2. What is the marginal product of the fourth worker?


A) 300 units
B) 200 units
C) 100 units
D) 50 units

E) B) and C)
F) None of the above

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Total revenue minus both explicit and implicit costs is called


A) accounting profit.
B) economic profit.
C) average total cost.
D) total cost.

E) B) and D)
F) A) and C)

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In setting the production level, a firm's cost curves


A) by themselves do not tell us what decisions the firm will make.
B) dictate what decisions the firm will make.
C) have no bearing on what decisions the firm will make.
D) None of the above is correct.

E) A) and D)
F) A) and B)

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Which of the following would be an example of an implicit cost?


A) (i) only
B) (ii) only
C) (ii) and (iii) only
D) (i) and (iii) only

E) All of the above
F) A) and B)

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The amount of money that a wheat farmer could have earned if he had planted barley instead of wheat is


A) an explicit cost.
B) an accounting cost
C) an implicit cost.
D) forgone accounting profit.

E) All of the above
F) A) and B)

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Table 13-20 Listed in the table are the long-run total costs for three different firms. Table 13-20 Listed in the table are the long-run total costs for three different firms.   -Refer to Table 13-20. Firm B is experiencing constant returns to scale. -Refer to Table 13-20. Firm B is experiencing constant returns to scale.

A) True
B) False

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Scenario 13-13 Christine is an artist who creates custom cookie jars. Her annual revenue from selling the cookie jars is $90,000. The annual explicit costs of the materials used to make the cookie jars are $54,000. -Refer to Scenario 13-13. Christine could earn $6,000 per year preparing taxes. In calculating the economic profit of her cookie jar business, the $6,000 that Christine gives up is counted as part of her business's


A) total revenue.
B) explicit costs.
C) implicit costs.
D) marginal costs.

E) A) and B)
F) A) and C)

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Figure 13-10 Figure 13-10   -Refer to Figure 13-10. The firm experiences economies of scale if it changes its level of output from A)  Q1 to Q2. B)  Q2 to Q3. C)  Q3 to Q4. D)  Q4 to Q5. -Refer to Figure 13-10. The firm experiences economies of scale if it changes its level of output from


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

E) A) and B)
F) A) and C)

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The typical total-cost curve is U-shaped.

A) True
B) False

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Accounting profit is greater than or equal to economic profit.

A) True
B) False

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Figure 13-3 Figure 13-3   -Refer to Figure 13-3. The changing slope of the total cost curve reflects A)  decreasing average variable cost. B)  decreasing average total cost. C)  decreasing marginal product. D)  increasing fixed cost. -Refer to Figure 13-3. The changing slope of the total cost curve reflects


A) decreasing average variable cost.
B) decreasing average total cost.
C) decreasing marginal product.
D) increasing fixed cost.

E) A) and B)
F) A) and C)

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Katherine gives piano lessons for $20 per hour. She also grows flowers, which she arranges and sells at the local farmer's market. One day she spends 5 hours planting $50 worth of seeds in her garden. Once the seeds have grown into flowers, she can sell them for $150 at the farmer's market. Katherine's accounting profits are


A) $100, and her economic profits are $100.
B) $100, and her economic profits are $0.
C) $0, and her economic profits are $100.
D) $0, and her economic profits are $-100.

E) A) and D)
F) C) and D)

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