Principles of Microeconomics
7th Edition
ISBN: 9781305156050
Author: N. Gregory Mankiw
Publisher: Cengage Learning
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Chapter 14, Problem 3CQQ
To determine
The cost curves effects on short run supply curve.
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a. What is its profit?b. What is its marginal cost?c. What is its average variable cost?d. Is the efficient scale of the firm more than, less than, or exactly 100 units?
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A profit-maximizing firm in a competitive market is currently producing 100 units of output. It has average revenue of $10, average total cost of $8, and fixed costs of $200.
A competitive firm’s short-run supply curve is its_________ cost curve above its _________ costcurve.a. average-total-; marginalb. average-variable-; marginalc. marginal-; average-totald. marginal-; average-variable
a. Draw the marginal cost and average total cost curves for a typical firm. Explain why the curves have the shapes that they do and why they cross where they do.
b. Does a competitive firm’s price equal its marginal cost in the short run, in the long run, or both? Explain.
Chapter 14 Solutions
Principles of Microeconomics
Ch. 14.1 - Prob. 1QQCh. 14.2 - How does a competitive firm determine its...Ch. 14.3 - Prob. 3QQCh. 14 - Prob. 1CQQCh. 14 - Prob. 2CQQCh. 14 - Prob. 3CQQCh. 14 - Prob. 4CQQCh. 14 - Prob. 5CQQCh. 14 - Prob. 6CQQCh. 14 - Prob. 1QR
Ch. 14 - Prob. 2QRCh. 14 - Prob. 3QRCh. 14 - Prob. 4QRCh. 14 - Prob. 5QRCh. 14 - Prob. 6QRCh. 14 - Prob. 7QRCh. 14 - Prob. 8QRCh. 14 - Prob. 1PACh. 14 - Prob. 2PACh. 14 - Prob. 3PACh. 14 - Prob. 4PACh. 14 - Prob. 5PACh. 14 - Prob. 6PACh. 14 - A firm in a competitive market receives 500 in...Ch. 14 - Prob. 8PACh. 14 - Prob. 9PACh. 14 - Prob. 10PACh. 14 - Prob. 11PACh. 14 - Prob. 12PA
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- I. A company produces at an output level where marginal cost is equal to marginal revenue and has the following revenue and cost levels: Total revenue = $1,450 Total cost = $1,500 Total variable cost = $1,300 What would you suggest? a. Shut down. b. Continue to produce because the loss is less than the total fixed cost. c. Increase production to lower the marginal cost. e. Raise the price. II. At current long-run production levels, the marginal revenue of a competitive firm is $15 and the marginal cost of the firm is $15. If the market is perfectly competitive, the firm should a. cut back on production. b. stop production all together. c. produce more. d. continue producing at current levels.arrow_forwardFill in with the correct answer. Your firm has a price of $5, an average total cost of $7, and an average variable cost of $4. Inthe short run, you should__________ (operate/shut down) because ________exceeds___________. Inthe long run, you should ___________(stay in/exit) the market because________ exceeds___________.arrow_forwardThe apple market is perfectly competitive and is in long-run equilibrium. Now a disease kills 50 per cent of the apple orchards. In the short run, the price of a bag of apples ________ and the remaining apple growers make ________ economic profit. In the long run, the ________. Select one: A. increases; zero; price of apples will return to its original level B. increases; zero; orchards will be replanted and economic profit will return to zero C. increases; positive; orchards will be replanted and economic profit will return to zero D. remains the same; zero; orchards will be replanted and growers will make normal profitsarrow_forward
- One more question is, A profit maximizing firm faces market price of p2. What are their profits?arrow_forwardTomato Farms is selling tomatoes in a purely competitive market. Its output is 25,000 bushels, which sell for $30 a bushel. At this level of output, the marginal cost is $30 a bushel, average variable cost is $30.50 a bushel, and average total cost is $34.50 a bushel. (a) What is the firm’s total fixed cost? You must show your work.arrow_forwardAssume Robbie's Robots operates in a perfectly competitive market producing 3,000 robots per day. At this output level, the selling price is $ 800 per robot and the marginal cost is $ 625 per robot. It follows that producing one more robot will: cause this firm's Select one .a. profits to remain unchanged . b. profits to increase . c. profits to decrease d. total cost to decreasearrow_forward
- Consider the following data: equilibrium price = $7.50, quantity of output produced 100 units, average total cost = $9, and average variable cost = $8. What will the firm do and why? = a. Shut down in the short run, because price is below average variable cost. b. Shut down in the short run, because price is below average total cost. c. Continue to produce in the short run, because price is greater than average variable cost. d. Continue to produce in the short run, because firms are always stuck with having to produce in the short run.arrow_forwardCost MC Select one: ATC AVC ABC D Quantity C in the figure above represents the output level where the firm Quantity a. maximizes profits in the short-run. b. minimizes total costs in the short-run. C. maximizes profits in the long-run. d. minimizes marginal costs in the long-run. e. None of the above.arrow_forward(1) Use the graph to answer the question below. The quantity is measured in thousands of units. What will this firm decide to do in the long run? A-It will stay in the market because the price is above its AVC at its profit-maximizing output. B-It will leave the market because the price is below its ATC at its profit-maximizing output. C-It will increase its price to point B to earn normal profit. D-It will increase its output until its profit-maximizing output level is equal to B. E-Insufficient data to determine. (2) A dairy farmer is operating in a perfectly competitive market. The market price for milk is between the farmer's average variable cost and average total cost at the profit-maximizing level of output. What will the farmer do? A-Produce more milk. B-Produce less milk. C-Shut down in the short run. D-Operate in the short run and leave the industry in the long run. E-Insufficient information to determine (3) A firm operating in a perfectly competitive market cannot…arrow_forward
- a perfectly competitive market over the long run, a. an increase in market demand or a decrease in firms' costs will lead to a decrease in the number of firms operating within the market. b. an improvement in production technology will increase profits at fust, but those profits will be competed away over time as more firms enter the industry and reduce market price. c. market price will equal maximum possible average total cost in long-run equilibrium. d. an increase in demand will cause the final market equilibrium to be at the original price but at a lower output level.arrow_forwardDoarrow_forwardA firm produces a product in a perfectly competitive industry and has a total cost function TC= 50+4q+2q². a. At the short-run market price of $20, the firm is producing 5 units of output. Is the firm maximizing its profit? Explain. b. What quantity of output will the firm produce in the long run, assuming there is no change in cost structure? What will be the long-run equilibrium price? c. Graphically depict the long-run equilibrium for an individual firm within this market.arrow_forward
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