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Question
The Jeans Store sells 7 pairs of jeans per day when it charges $100 per pair. It sells 8 pairs of jeans per day at a price of $90 per pair. The marginal revenue of the eighth pair of jeans isA) $20.
B) $90.
C) $100.
D) $700.
Answer
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Related questions
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Perfectly competitive industries tend to produce low-priced, low-technology products.
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The market demand curve for a perfectly competitive industry is the horizontal summation of each individual firm's demand curve.
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Firms in perfect competition produce the allocatively efficient output in the short run and in the long run.
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If a firm in a perfectly competitive industry introduces a lower-cost way of producing an existing product, the firm will be able to earn economic profits in the long run.
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Which of the following describes a difference between allocative efficiency and productive efficiency in a perfectly competitive market?
A) Allocative efficiency is achieved only in the long run. Productive efficiency is achieved only in the short run.
B) Allocative efficiency is achieved only in the long run. Productive efficiency is achieved in the short run and the long run.
C) Allocative efficiency is achieved only in the short run. Productive efficiency is achieved only in the long run.
D) Allocative efficiency is achieved in the short run and the long run. Productive efficiency is achieved only in the long run.
Q:
New York Times writer Michael Lewis wrote that "The sad truth, for investors, seems to be that most of the benefits....are passed through to consumers free of charge." To which of the following did Lewis refer?
A) apple farming in New York state
B) the Enron accounting scandal
C) the medical screening industry
D) new technologies developed in the 1990s
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If a perfectly competitive firm raises the price it charges to consumers, which of the following is the most likely outcome?
A) The firm's revenue will not change because some consumers will refuse to pay the higher price.
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D) The firm's total revenue will increase only if the demand for its product is elastic.
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In early 2007, Pioneer and JVC, two Japanese electronics firms, each announced that their profits were going to be lower than expected because they both had to cut prices for LCD and plasma television sets. Which of the following could explain why these firms did not simply raise their prices and increase their profits?
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B) Most likely, intense competition between these two major producers probably pushed prices down. Thereafter, each feared that it would lose its customers to the other if it raised its prices.
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Q:
A perfectly competitive industry achieves allocative efficiency because
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D) firms carry production surpluses.
Q:
If the long-run average cost curve is U-shaped, the optimal scale of production from society's viewpoint is
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B) where maximum economic profit is earned by producers.
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The demand curve for an individual seller's product in perfect competition is
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Jason, a high-school student, mows lawns for families in his neighborhood. The going rate is $12 for each lawn-mowing service. Jason would like to charge $20 because he believes he has more experience mowing lawns than the many other teenagers who also offer the same service. If the market for lawn mowing services is perfectly competitive, what would happen if Jason raised his price?
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If in the long run a firm makes zero profit, it should exit the industry.
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B) The market demand curve shifts to the left, causing price to fall and market output to decrease.
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Figure 12-17 The graphs in Figure 12-17 represent the perfectly competitive market demand and supply curves for the apple industry and demand and cost curves for a typical firm in the industry.
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A) is the same thing as its long-run average cost curve.
B) is a curve that shows a firm's cost-minimizing combination of inputs for every level of output, holding input prices constant.
C) shows the targeted growth rate in sales over the long run.
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Q:
Suppose two countries use different combinations of inputs, such as labor and capital, to produce the same product. This implies all of the following except that
A) the two countries use different technologies to produce the product.
B) the inputs are not equally productive in the two countries.
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Q:
In the long run which of the following is true?
A) Total cost = fixed cost + variable cost.
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As a firm moves to higher isocost lines
A) its profits increase.
B) its revenue increases.
C) its input price ratio increases.
D) its total cost increases.
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The marginal rate of technical substitution is measured by
A) the slope of the isoquant.
B) the relative input prices.
C) the slope of the isocost line.
D) the ratio of the product's price to the product's cost of production.
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The typical shape of an isoquant is
A) convex towards the origin.
B) concave towards the origin.
C) linear and downward sloping.
D) linear and upward sloping.
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An expansion path shows
A) the level of sales necessary for a firm if it wants to expand.
B) the level of long-run average cost at different scales of operation.
C) the least-cost combination of inputs for each level of output.
D) the returns to scale at each level of output.
Q:
Maximizing the level of output for a given total cost of production
A) is equivalent to producing the profit maximizing output level.
B) is equivalent to minimizing cost for a given level of output.
C) necessitates using only relatively low-priced inputs.
D) will maximize total revenue.
Q:
Golda Rush quit her job as a manager for Home Depot to start her own hair dressing salon, Goldilocks. She gave up a salary of $40,000 per year, invested her savings of $30,000 (which was earning 5 percent interest) and borrowed $10,000 from a close friend, agreeing to pay 5 percent interest per year. In her first year, Golda spent $18,000 to rent a salon, hired a part-time assistant for $12,000 and incurred another $15,000 on equipment and hairdressing material. Based on this information, what is the amount of her implicit costs?
A) $80,000
B) $70,000
C) $42,000
D) $41,500
Q:
Which of the following would be categorized as an opportunity cost?
a. not being able to spend your $10,000 savings if you sink the money in your business
b. the cost of purchasing supplies for your house-cleaning business
c. the cost of purchasing auto insurance for your dry-cleaning delivery business
A) a only
B) a and c only
C) b and c only
D) all of the above