AQuantity DemandedFigure 1Quantity DemandedFigure 2For a perfectly competitive firm, which line or lines represent the firm's demand and marginal revenue curveslines B and C respectively in figure 2lines A and C respectively in figure 2lines A and B respectively in figue 1line B only in figure 1Price, Marginalo Revenue, Total RevenueB.Price, Marginalo Revenue, Total Revenue

Introduction: Under perfect competition, the price is determined in the market by market forces i.e.…

Quantity Demanded Figure 1 Quantity Demanded Figure 2 For a perfectly competitive firm, which line or lines represent the firm's demand and marginal revenue curves Price, Marginal o Revenue, Total Revenue Price, Marginal oRevenue, Total Revenue

Quantity Demanded Figure 1 Quantity Demanded Figure 2 For a perfectly competitive firm, which line or lines represent the firm's demand and marginal revenue curves Price, Marginal o Revenue, Total Revenue Price, Marginal oRevenue, Total Revenue

Principles of Economics 2e

2nd Edition

ISBN:9781947172364

Author:Steven A. Greenlaw; David Shapiro

Publisher:Steven A. Greenlaw; David Shapiro

Chapter8: Perfect Competition

Section: Chapter Questions

Problem 1SCQ: Firms ill a perfectly competitive market are said to be price takers that is, once the market...

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A market in perfect competition is in long-run equilibrium. What happens to the market if labor unions are able to increase wages for workers?
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Suppose that each firm in a competitive industry has the following costs: Total cost: TC = 50 + q2 Marginal cost: MC = q where q is an individual firms quantity produced. The market demand curve for this product is Demand:QD = 120 P where P is the price and Q is the total quantity of the good. Currently, there are 9 firms in the market. a. What is each firms fixed cost? What is its variable cost? Give the equation for average total cost. b. Graph average-total-cost curve and the marginal-cost curve for q from 5 to 15. At what quantity is average-total-cost curve at its minimum? What is marginal cost and average total cost at that quantity? c Give the equation for each firms supply curve. d. Give the equation for the market supply curve for the short run in which the number of firms is fixed. e. What is the equilibrium price and quantity for this market in the short run? f. In this equilibrium, how much does each firm produce? Calculate each firms profit or loss. Is there incentive for firms to enter or exit? g. In the long run with free entry and exit, what is the equilibrium price and quantity in this market? h. In this long-run equilibrium, how much does each firm produce? How many firms are in the market?
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Short-run supply and long-run equilibrium Consiber the competitive market for rhodium. Assume that no matter how many firms operate in the induatry, every firm is identical and faces the same marpinal cost (MC), averapt total cost (ATC), and average variable cost (AVC ) curves plotted in the following praph. The following graph plots the market demand curve for thodium. If there were 10 firms in this market, the short-run equilibrium price of rhodium would be per pound. At that price, firms in this industry would. Therefore, in the long run, firms would the rhodium market. Because you know that competitive firms earn economic profit in the long run, you know the long-run equilibrium price must be per pound. From the graph, you can see that this means there will be firms operating in the rhodium industry in long-run equilibrium. True or False: Assuming implicit costs are positive, each of the firms operating in this industry in the long run earns positive accounting profit. True False
Suppose that each firm in a competitive industry has the following costs: Total cost: TC= 50 + 0.5Q^2The market demand curve for this product is: Qd= 120 − PThere are 9 firms in the market.e) What is the equilibrium price and quantity for this market in the short run? In this equilibrium, how much does each firm produce? Calculate each firm’s profit.f) In the long run with free entry and exit, what is the equilibrium price and quantity in thid market. Is there incentive for firms to enter or exit? h) In this long-run equilibrium, how much does each firm produce? How many firms are in the market?
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