Consider the following demand and cost information on a perfectly competitive firm in the short run: Price per unit (in dollars) Quantity Total Cost (in pounds) (in dollars) 5 7 5 1 17 2 24 3 26 4 29 5 5 33 5 6 38 5 7 44 5 8. 52 What is the profit-maximizing/loss-minimizing output of the firm? What is the amount of the profit/loss? Suppose a perfectly competitive firm in the short run faces an industry price of $10 per unit and its marginal revenue is equal to rising marginal cost at an output of 150 units. The firm's total cost is $2000 and total fixed cost is $900. I. How much output should the firm produce? Explain briefly Suppose fixed costs double to $1800. Should the firm shut down? Explain briefly. II.

Consider the following demand and cost information on a perfectly competitive firm in the short run: Price per unit (in dollars) Quantity Total Cost (in pounds) (in dollars) 5 7 5 1 17 2 24 3 26 4 29 5 5 33 5 6 38 5 7 44 5 8. 52 What is the profit-maximizing/loss-minimizing output of the firm? What is the amount of the profit/loss? Suppose a perfectly competitive firm in the short run faces an industry price of $10 per unit and its marginal revenue is equal to rising marginal cost at an output of 150 units. The firm's total cost is $2000 and total fixed cost is $900. I. How much output should the firm produce? Explain briefly Suppose fixed costs double to $1800. Should the firm shut down? Explain briefly. II.

Survey Of Economics

10th Edition

ISBN:9781337111522

Author:Tucker, Irvin B.

Publisher:Tucker, Irvin B.

Chapter7: Perefect Competition

Section: Chapter Questions

Problem 5SQP

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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?
Suppose that the development of a new drought-resistant hybrid seed corn leads to a 50 percent increase in the average yield per acre without increasing the cost to the farmers who use the new technology. If the producers in the corn production industry were price takers, what would happen to the following? a. the price of corn b. the profitability of corn farmers who quickly adopt the new technology c. the profitability of corn farmers who are slow to adopt the new technology d. the price of soybeans, a substitute product for corn
Assume the following total cost schedule for a perfectly competitive firm. Output TVC TFC 0 0 100 1 40 100 2 70 100 3 120 100 4 180 100 5 250 100 6 330 100 The total cost of producing 6 units of output is __________________ If the firm is producing at an output level of 2 units, the ATC is _____________ and the AVC is ______________ The profit-maximizing firm would shut down in the short run if the market price of its output dropped below ___________________ At what price would a profit-maximizing firm earn zero economic profits? _______________
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Assume that a firm in a perfectly competitive industry has the following total cost schedule:OUTPUT (UNITS) TOTAL COST ($) 10 110 15 150 20 180 25 225 30 300 35 385 40 480a. Calculate a marginal cost and an average cost schedule for the firm. b. If the prevailing market price is $17 per unit, how many units will be produced and sold? What are profits per unit? What are total profits? c. Is the industry in long-run equilibrium at this price?
Suppose that a perfectly competitive industry consists of 240 firms and fixed cost of an individual firm is 384 half of which is a sunk fixed cost while the average variable cost is 12q. Market demand is given by Q-1440-10P. Find the equilibrium output and profit, respectively
A perfectly competitive industry has a large number of potential entrants. Each firm has an identical cost structure such that long-run average cost is minimized at an output of 20 units (qi) =20. The minimum average cost is $10 per unit. Total market demand is given by ? = 1,500 − 50? . What is the industry’s long-run supply schedule?
Consider the following cost information for a firm that operates in a perfectly competitive market. Q (quantity of output) Total cost ($) 0 100 3 140 6 200 9 290 12 410 15 560 18 740 (4) What will happen to the price in the long run? Give a detailed process for the change in the price. (5) Suppose that the market price falls from $50 to $30. How many units of output should the firm produce in the short run?
1- Suppose that the total cost function of a firm is given as follows;TC = 500 + 2Q2And the price of the firm’s product is determined by the market equilibrium at $100.a- Set the profit maximizing condition . Find the profit maximizing output level for this firm .b- What is the total revenue ?c- What is the total cost ?d- What is the profit earned by the firm ?e- Illustrate your answer by using a well-labeled graph .f- Denote the break even price level with Pb on the same graph .g- Denote the shut down price level with Ps on the same graph.h- Show the firm’s supply curve on the same graph .i- Does the firm function in short-run or long-run ? Why ?
A perfectly competitive industry has a large number of potential entrants. Each firm has an identical cost structure such that long-run average cost is minimized at an output of 20 units (qi) =20. The minimum average cost is $10 per unit. Total market demand is given by ? = 1,500 − 50?a. What is the industry’s long-run supply schedule?b. What is the long-run equilibrium price (p*)? The total industry output (Q*)? The output of each firm (O*)? The number of firms? The profits of each firm? c. The short-run total cost function associated with each firm’s long-run equilibrium output is given by ?(?) = 0.5?2 − 10? + 200Calculate the short-run average and marginal cost function. At what output level does short run average cost reach a minimum? d. Calculate the short-run supply function for each firm and the industry short-run supply function.e. Suppose now that the market demand function shifts upward to Q =2,000 - 50P. Using this new demand curve, answer part (b) for the very short run…
d, e, & f Consider a perfectly competitive industry where the typical firm has long run Total Cost TCLR = q2 + 2q + 196.a) Find the minimum efficient scale of the typical firm. MES = 30 b) Find the long run equilibrium price. P = 30 Suppose demand in this industry is Qd = 1,700 – 10P.c) Find the long run equilibrium quantity and how many firms can survive in this industry in the long run. Equilibrium Quantity = 1400 and # of firms = 100 Suppose government introduces a $10 per unit tax collected from sellers.d) The tax alters the long run total cost of the typical firm. In which way?e) Does the tax affect the minimum efficient scale of the typical firm?f) In the long run, by how much will the equilibrium price increase in response to the tax?
The table below shows the average cost (AC) for a purely competitive market. The average revenue (AR) is constant at RM5 per unit and the firm’s total fixed cost (TFC) is RM4. If the average revenue falls to RM3 per unit, calculate the firm’s new profit or loss at the equilibrium. Based on your answer, should the firm continue or stop the production? Justify. Output (Units) Total Revenue (RM) Average Cost (RM) Total Cost (RM) Marginal Cost (RM) Marginal Revenue (RM) 1 8.0 2 5.5 3 4.0 4 3.5 5 3.8 6 4.5 7 6.0