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 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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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.
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- 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_forwardq 0 1 2 3 4 5 6 TFC $5 5 5 5 5 5 5 TVC $0 3 LO 5 9 16 25 36 MC - $3 2 4 7 9 11 P = MR $5 5 5 5 LO 5 5 5 A profit-maximizing firm should produce a quantity of TR $0 5 10 15 20 25 30 TC $5 8 10 14 21 30 41 Profit $-5 - 3 0 1 - 5 11 units. (Enter your response as a whole number.)arrow_forwardIn the figure at right, at which output level is this firm earning negative economic profits? O A. 12 OB. 2 OC. 5 O D. 10 Revenues and Costs ($) 180 160- 140- 120 100+ 80- 60- 40- 20- of 0 2 4 6 8 10 Quantity 12 14 TC TR 16 18 20arrow_forward
- 1. The table below represents the demand for Widgets, Inc., which has a monopoly in the sale of widgets. Calculate total revenue and marginal revenue for the levels of output given. Draw the demand curve and the marginal revenue curve in a same graph. Quantity 0 1 2 3 4 LO 5 Price $25 21 17 13 9 LO 5arrow_forwardConsider the competitive market for rhodium. Assume that no matter how many firms operate in the industry, every firm is identical and faces the same marginal cost (MC), average total cost (ATC), and average variable cost (AVC) curves plotted in the following graph. COSTS (Dollars per pound) 80 72 64 56 co o 32 + 16 8 0 0 4 MC 0 ATC AVC 8 12 16 20 24 28 QUANTITY (Thousands of pounds) 32 38, 72 36 40 Ⓒarrow_forwardThe following graph plots the market demand curve for rhenium. Use the orange points (square symbol) to plot the initial short-run industry supply curve when there are 10 firms in the market. (Hint: You can disregard the portion of the supply curve that corresponds to prices where there is no output since this is the industry supply curve.) Next, use the purple points (diamond symbol) to plot the short-run industry supply curve when there are 20 firms. Finally, use the green points (triangle symbol) to plot the short-run industry supply curve when there are 30 firms. PRICE (Dollars per pound) 80 72 64 56 48 40 32 24 16 8 Demand 0 0 120 240 360 480 800 720 840 980 1080 1200 QUANTITY (Thousands of pounds) Because you know that competitive firms earn Supply (10 firms) Supply (20 firms) If there were 30 firms in this market, the short-run equilibrium price of rhenium would be $ would . Therefore, in the long run, firms would True Supply (30 firms) False per pound. From the graph, you can…arrow_forward
- . (Figure 8.17) Initially, the constant-cost industry was in long-run equilibrium at point A when the demand for the good increased to D₂. How much output will be produced in the long run as a result of the demand increase? Price (S) 10- 8- 7 6- 5- 4 3- 2- 1- O 3,000 O 5,000 O 6,000 O 7,000 8 9 10 Quantity (1,000)arrow_forwardQuestion 4 Discuss the difference between average revenue and marginal revenue. Why are both of these revenue measures important to a profit-maximizing firm? Discuss the law of diminishing returns and how it explains the shape of the short run average cost curve Camille's variable cost, VC, is his wage cost ($80 per worker per day) and his other input costs ($0.50 per cup). i. ii. iii. 12345 a. Complete the following table b. If the firm closes down and produces no output, what will be its total cost? Explain Labour (workers) Quantity of FC frozen yogurt (cups) 110 200 270 300 320 VC TC 235 AC $ 3 MC $arrow_forwardIn the figure at right, at which output level is this firm earning negative economic profits? O A. 12 OB. 2 OC. 5 O D. 10 Revenues and Costs ($) 180 160- 140 120- 100+ 80- 60- 40 20- 0 0 2 4 6 8 TC TR 10 12 14 16 18 20 Quantity Qarrow_forward
- Suppose the market price for a price taking firm is known to be $2, the total revenue accruing to it if it sells 100 is and the total revenue accruing to it if it sells 200 is O $100, $200 O $200. $400 $200, $400 O 52. S2arrow_forward(Figure: Price and Quantity V) At the profit-maximizing output level, this firm earns a profit of: Price ($) 10 9 8 O $48. O $60. 7 6 5- 732- 4 3 O $60. 2 1 MC L O $20. 0 2 4 6 -8 ATC D 10 12 14 16 18 20 Quantityarrow_forward7. A car manufacturer builds both left-hand and right-hand drive cars. It estimates that its costs and the demand faced in each of these respective markets can be modelled by the functions below P1 = 520 – 3Q1 P, = 720 – 4Q2 - TC = 100Q1 + 120Q2 + 4Q1Q2 What is the maximum profit the firm could make? O 24300 O 24800 25300 25800 26500 O0000arrow_forward
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