Total cost: TC=50 + 1/2q^2 Marginal cost: MC=q where q is an individual firm's 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

Total cost: TC=50 + 1/2q^2 Marginal cost: MC=q where q is an individual firm's 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

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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Firms ill a perfectly competitive market are said to be price takers that is, once the market determines an equilibrium price for the product, firms must accept this price. If you sell a product in a perfectly competitive market, but you are not happy with its price, would you raise the price, even by a cent?
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?
Return to Figure 9.2. Suppose P0 is 10 and P1 is 11. Suppose a new firm with the same LRAC curve as the incumbent tries to bleak into the market by selling 4,000 units of output. Estimate from the graph what the new firms average cost of producing output would be. If the incumbent continues. to produce 6,000 units, how much output would the two films supply to the market? Estimate what would happen to the market price as a result of the supply of both the incumbent firm and the new entrant. Approximately how much profit would each firm earn? Figure 9.2 Economics of Scale and Natural Monoploy
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Suppose that each firm in a competitive industry has thefollowing costs: Total cost: TC=50 + 1/2q^2 Marginal cost: MC=q where q is an individual firm’s quantity produced. The marketdemand 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 firm’s fixed cost? What is its variable cost?Give the equation for average total cost. b. Graph average total cost curve and the marginal cost curvefor q from 5 to 15. At what quantity is average total cost curve atits minimum? What us marginal cost and average total cost at thisquantity? c. Give the equation each firm’s supply curve. d. Give the equation for the market supply curve for the shortrun in which the number of firms is fixed. e. What is the equilibrium price and quantity for this market inthe short run? f. In this equilibrium, how much does each firm produce?Calculate each firm’s profit or loss. Is there incentive for…
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?
usiness EconomicsQ&A LibraryTwo firms A and B produce an identical product (Note: Industry Output = Q). The firms have to decide how much output qA and qB (Note: qA = Firm A Output; qB = Firm B Output) they must produce since they are the only two firms in the industry that manufacture this product. Their marginal cost (MC) is equal to their average cost (AC) and it is constant at MC = AC = X, for both firms. Market demand is given as Q = Y – 2P (where P = price and Q = quantity). Select any value for X between [21 – 69] and any value for Y between [501 – 999]. Using this information, calculate the Industry Price, Industry Output, Industry Profit, Consumer Surplus and Deadweight Loss under each of the following models: (a) Cournot Model Two firms A and B produce an identical product (Note: Industry Output = Q). The firms have to decide how much output qA and qB (Note: qA = Firm A Output; qB = Firm B Output) they must produce since they are the only two firms in…
Suppose that each firm in a competitive industry has the following costs: Total cost: TC = 50 + 1/2q2 Marginal cost: MC = q Where q is an individual firm’s quantity produced. The market demand curve for the 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. What is each firm’s fixed cost? What is its variable cost? Give the equation for average total cost. Graph the average-total-cost curve and the marginal-cost curve for q from 5 to 15. At what quantity is the average-total-cost curve at its minimum? What is the marginal cost and average total cost at that quantity? Give the equation for each firm’s supply curve. Give the equation for the market supply curve for the short run in which the number of firms is fixed. What is the equilibrium price and quantity for the market in the short run? In this equilibrium, how much does each firm produce? Calculate the firm’s profit and loss. Do firms have…
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.a) What are each firm’s: fixed cost, variable cost, marginal cost, and average total cost? Graph the average-total-cost curve and the marginal-cost curve.b) Give the equation for each firm’s supply curve.the average-total-cost curve at its minimum? What is marginal cost and average totalc) Give the equation for the market supply curve for the short run in which the numbercost at that quantity?
Many small boats are made of fiberglass and a resinderived from crude oil. Suppose that the price of oilrises.a. Using diagrams, show what happens to the costcurves of an individual boat-making firm and tothe market supply curve.b. What happens to the profits of boat makers in theshort run? What happens to the number of boatmakers in the long run?
Suppose that each firm in a competitive industry has the following costs: Totalcost:TC=50+1/2q2 Marginalcost:MC=q where q is an individual firm's 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 firm's 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 qfrom 5 to 15. Atwhat quantity is average-total-cost curve at its minimum? What is marginal cost and averagetotal cost at that quantity?c. Give the equation for each firm's 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 firm's profit or loss. Is there incentive for firms to…
An industry currently has 100 firms, each of whichhas fixed cost of $16 and average variable cost asfollows:Quantity Average Variable Cost1 $12 23 34 45 56 6a. Compute a firm’s marginal cost and average totalcost for each quantity from 1 to 6.b. The equilibrium price is currently $10. How muchdoes each firm produce? What is the total quantitysupplied in the market?c. In the long run, firms can enter and exit themarket, and all entrants have the same costs asabove. As this market makes the transition to itslong-run equilibrium, will the price rise or fall?Will the quantity demanded rise or fall? Will thequantity supplied by each firm rise or fall? Explainyour answers.d. Graph the long-run supply curve for this market,with specific numbers on the axes as relevant.