Micro Economics For Today
Micro Economics For Today
10th Edition
ISBN: 9781337613064
Author: Tucker, Irvin B.
Publisher: Cengage,
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Chapter 8, Problem 17SQ
To determine

 The short run supply curve of a perfectly competitive firm.

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Justin’s Jeans sells in a perfectly competitive market with a downward-sloping demand curve and an upward-sloping supply curve. The market price is $33 per unit, and the total fixed cost is $30.(a) Identify the profit-maximizing quantity. Explain using marginal analysis. (b) Calculate the economic profit at the profit-maximizing quantity you identified in part (a). Show your work.(c) Calculate the average fixed cost of producing 6 units. Show your work.(d) Based on your answer to part (b), will the number of firms in the industry increase, decrease, or stay the same in the long run? Explain.(e) Based on your answer to part (b), will the market price increase, decrease, or stay the same in the long run? Explain.(f) The income elasticity of demand for Good M is 1.4, and the cross-price elasticity of demand for jeans with respect to the price of Good M is −0.75. Based on your answer to part (e), what will happen to the demand for jeans? Explain.(g) Now assume that the market in which…
If a profit-maximizing, competitive firm is producing a quantity at which marginal cost is between average variable cost and average total cost, it will   A. keep producing in the short run but exit the market in the long run.   B. shut down in the short run but return to production in the long run   C. shut down in the short run and exit the market in the long run.   D. keep producing both in the short run and in the long run.
A profit-maximizing firm in a competitive market is currently producing 500 units of output. It has average revenue of $10, average total cost of $8, and fixed costs of $200. 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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