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1 | | Suppose you could paint your own house in 20 hours or you could hire a professional to do it for you in 12 hours. You value your time at $12 per hour; the professional will charge you $200 plus the cost of the paint. The opportunity cost of painting your own house is: |
| | A) | $200 |
| | B) | $240 |
| | C) | $40 |
| | D) | $96 |
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2 | | The distinguishing feature of the short run is that: |
| | A) | at least one input is fixed |
| | B) | output is fixed |
| | C) | input prices are variable |
| | D) | technology is variable |
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3 | | The WXY Corporation has fixed costs of $30. Its total variable costs (TVC) vary with output as shown in the following table. (4.0K) Refer to the table. The marginal cost of the fourth unit of output is: |
| | A) | $30 |
| | B) | $40 |
| | C) | $50 |
| | D) | $60 |
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4 | | Answer the next question based on the cost data in the following table: (8.0K) Refer to the data. At what output level does marginal cost equal average variable cost? |
| | A) | 2 units |
| | B) | 3 units |
| | C) | 4 units |
| | D) | both 2 units and 4 units |
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5 | | Use the following diagram to answer the next question. (6.0K) Refer to the diagram. Average fixed cost is: |
| | A) | line 1 |
| | B) | line 2 |
| | C) | line 3 |
| | D) | the vertical distance between lines 2 and 3 |
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6 | | Use the following data to answer the next question. The letters A, B, and C designate three successively larger plant sizes. (12.0K) Refer to the data. In the long run, the firm should use plant size "A" for: |
| | A) | all possible levels of output |
| | B) | 100 to 200 units of output |
| | C) | 300 to 600 units of output |
| | D) | 600 or more units of output |
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7 | | Suppose that when output is 20 units, TC = $120, TVC = $100, and MC = $10. At this output: |
| | A) | MC < AVC |
| | B) | AFC = AVC |
| | C) | AFC = $1 |
| | D) | AVC is minimized |
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8 | | Use the following data to answer the next question. The letters A, B, and C designate three successively larger plant sizes. (12.0K) Refer to the data. If these are the only three plant sizes available, what is the long run average cost of producing 600 units? |
| | A) | $4 |
| | B) | $6 |
| | C) | $28 |
| | D) | $38 |
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9 | | Suppose a particular firm exhibits constant returns to scale as it increases its output over any reasonable range. If it increases all its inputs by 10%, its: |
| | A) | total cost will increase by less than 10% |
| | B) | average total cost will increase by 10% |
| | C) | output will increase by 10% |
| | D) | long run average cost curve will shift to the right by 10% |
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10 | | Insurance is typically a fixed cost. Accordingly, an increase in a firm's insurance premiums will shift up the firm's short-run: |
| | A) | average total cost curve |
| | B) | marginal cost curve |
| | C) | average variable cost curve |
| | D) | total fixed cost curve but leave its average fixed cost curve unaffected |
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