Microeconomics
21st Edition
ISBN: 9781259915727
Author: Campbell R. McConnell, Stanley L. Brue, Sean Masaki Flynn Dr.
Publisher: McGraw-Hill Education
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Question
Chapter 10, Problem 5RQ
To determine
Relevance of perfect competition .
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Suppose that the pen-making industry is perfectly competitive. Also suppose that each current firm and any potential firms that might enter the industry all have identical cost curves, with minimum ATC = $1.25 per pen. If the market equilibrium price of pens is currently $1.50, what would you expect it to be in the long run? LO11.2 a. $0.25. b. $1.00. c. $1.25. d. $1.50.
7. Long-run cost relationships
The following graph shows the short-run average total cost curves and the long-run average cost curve for a publishing firm. The five marked
quantities indicate points of tangency between each short-run average total cost curve (SRATC) and the long-run average cost curve (LRAC); for
example, Q₁ marks the point of tangency between SRATC₁ and LRAC.
The orange point on SRATC3 indicates the firm's current output level in the short run (Q3).
COST PER UNIT
SRATC₁
LRAC
SRATC2
|
"
Q₂2₂
SRATC3
O
"
|
1
1
Q3
QUANTITY OF OUTPUT
Q₁
SRATC5
SRATC4
1
A perfectly competitive firm that makes car batteries has total fixed costs of $10,000 per month. The market price at which it can sell its
output is $100 per battery. The firm's minimum AVC Is $105 per battery. The firm is currently producing 500 batteries a month (the
output level at which MR=MC).
This firm is making a
O loss, shut down
O profit, shut down
O profit: increase
O loss; increase
and should.
production
Knowledge Booster
Similar questions
- In the table below, the firm; Output Total Revenue Total Cost $0 $30 $60 $90 $120 $150 $180 $25 $49 $69 $91 $117 $147 $180 O a. cannot be in a perfectly competitive industry, because its short-run economic profits are greater than zero. O b. must be in a perfectly competitive industry, because its marginal cost curve eventually rises. O c. cannot be in a perfectly competitive industry, because its long-run economic profits are greater than zero O d. must be in a perfectly competitive industry, because its marginal revenue is constant. 123 456arrow_forwardStuff, Incorporated is a firm with a total revenue of $1,000, marginal cost of $5, and average variable cost of $4. Both the output and input markets are perfectly competitive and Stuff, Inc. is in long run equilibrium. Stuff, Inc.'s output and total fixed costs must be equal to which of the following? O Output 200; Fixed Cost $200 O Output 200; Fixed Cost $400 O Output 200; Fixed Cost $800 O Output 250; Fixed Cost $800 O Output 250; Fixed Cost $400arrow_forwardThe figure shows a perfectly competitive firm. The firm is operating; that is, it has not shut down. The firm produces O A. 20 units of output and earns a normal profit. MC ATC 50 B. 10 units of output and incurs an economic loss. 40 O C. 10 units of output and earns a normal profit. O D. 20 units of output and incurs an economic loss. 30 MR 20 10 10 30 40 Quantity (per day) Price and costs (dollars) 20arrow_forward
- The table below shows cost data for WipeOutSki Company which manufactures skis for beginners. If the company's fixed costs are $30, what is the marginal cost of five units of output? Variable Cost Fixed Cost Total Cost Average Variable Cost Average Total Cost Marginal Cost Quantity $30 1 $10 $30 $25 $30 $45 $30 $70 $30 $100 $30 B. $135 $30 O $45.00 O S30.00 O S25.00 2) 3. 4) 69arrow_forward........ # m SI 4. 2. He %3D Consider the following costs for a typical perfectly competitive firm with no fixed costs (average total cost = average variable cost). Average Total Cost Quantity Marginal Cost $24 1. 16.5 6$ 12.67 3. 7. 15 11.25 12 5. 14.83 9. a. Which of the following prices would be associated with a long-run equilibrium? O $11.25 O $15 O $12 Next> < Prev 9 jo 9 72°F Partly sunny 近 ere to search ofile Ball10 F7 F3 & %23 24 4. 2. R. K H B.arrow_forwardLO 11.2: I can calculate marginal cost, revenue, and profit and distinguish between marginal cost and average cost. Suppose that Patrick's Handmade Puppets has a production cost that is given by C(x) = 2,000 + 130x – 0.6x2 + 0.002x3 dollars (0arrow_forwardSuppose that the paper clip industry is perfectly competitive. Also assume that the market price for paper clips is 2 cents per paper clip. The demand curve faced by each firm in the industry is: LO10.3 a. A horizontal line at 2 cents per paper clip. b. A vertical line at 2 cents per paper clip. c. The same as the market demand curve for paper clips. d. Always higher than the firm’s MC curve.arrow_forwardA firm in a purely competitive industry is currently producing 1,000 units per day at a total cost of $450. If the firm produced 800 units per day, its total cost would be $300, and if it produced 500 units per day, its total cost would be $275. What are the firm’s ATC per unit at these three levels of production? If every firm in this industry has the same cost structure, is the industry in long-run competitive equilibrium? From what you know about these firms’ cost structures, what is the highest possible price per unit that could exist as the market price in long-run equilibrium? If that price ends up being the market price and if the normal rate of profit is 10 percent, then how big will each firm’s accounting profit per unit be?arrow_forwardTable: Total Cost and Output Table: Total Cost and Output Output Total Cost 0 1 2 3 4 $ 10 60 80 110 170 245 Use Table: Total Cost and Output, which describes Sergei's total costs for his perfectly competitive all-natural ice cream firm. If the market price of a tub of ice cream is $67.50, how much is Sergei's total revenue at the profit-maximizing output? O $270.00 O $170.00 $100.00 $67.50arrow_forwardRefer to this table to answer the next three questions. The accompanying table represents the quantity produced, the total revenue, and the total cost of a firm operating in a perfectly competitive market. Quantity 0 1 2 3 4 Profits are maximized when the firm produces O O O 2 0 1 04 O 3 Total Revenue $0 $6 $12 $18 $24 unit(s). Total Cost $6 $8 $12 $17 $24arrow_forward4. Various measures of cost Suppose the imaginary company of Roobek is a small, Jackson-based American apparel manufacturer specializing in athleisure. The following table presents the brand's total cost of production at several different quantities. Fill in the remaining cells of the following table. Quantity Total Cost Marginal Cost (Pairs) (Dollars) (Dollars) 0 1 2 3 4 LO 5 6 120 200 240 285 340 425 540 Fixed Cost Variable Cost (Dollars) (Dollars) Average Variable Cost (Dollars per pair) Average Total Cost (Dollars per pair)arrow_forwardThe table below describes a firm that sells output in a perfectly competitive market. Note the second column describes total costs. O $8 O $12 O $6 Output O $4 0 1 2 3 4 5 Which of the following market prices would cause the firm's profit-maximizing output level to be equal to 5? 6 Total Cost (in dollars) $3 $9 $14 $18 $23 $30 $40 4arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
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