Economics (Irwin Economics)
21st Edition
ISBN: 9781259723223
Author: Campbell R. McConnell, Stanley L. Brue, Sean Masaki Flynn Dr.
Publisher: McGraw-Hill Education
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Question
Chapter 10, Problem 2RQ
Subpart (a):
To determine
Relevance of pure competition.
Subpart (b):
To determine
Total revenue and marginal revenue.
Subpart (c):
To determine
Total revenue and marginal revenue.
Subpart (d):
To determine
Total revenue and marginal revenue.
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4. 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)
Suppose 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.
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.
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