7. Short-run supply and long-run equilibriumConsider the competitive market for steel. Assume that, regardless of how many firms are in the industry, every firm in the industry is identical andfaces the marginal cost (MC), average total cost (ATC), and average variable cost (AVC) curves shown on the following graph.1009080COSTS (Dollars per ton)8885060707040ATC30208010MCAVCD001020304050 60708090100QUANTITY (Thousands of tons)

Short-Run Supply: A Production Decision Based on Marginal CostImagine you're a manager at a steel…

Answered: 7. Short-run supply and long-run…

Principles of Microeconomics

7th Edition

ISBN:9781305156050

Author:N. Gregory Mankiw

Publisher:N. Gregory Mankiw

Chapter13: The Cost Of Production

Section: Chapter Questions

Problem 6PA

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2500 2000 1500 Returns te scale: 0.33 1000 Price 2 10 15 20 25 30 Size dength in feet) 35 40 Rental price 100 The interactive above is from the loarning object, it will automatically find the profit maximizing length of the truck Adam should rent at given prices, rental rates, productivities, and returns to scale. It only the productivity of the truck Adam chooses to rent decreases, which of the following would be true at the new profit maximizing level of output and length of truck? Select the two that apply O A decrease in marginal cost O A decrease in total costs O A decrease in total revenuo O An incroase in the amount of labor Adam hires Revenue
B. suppose that the steel firms costs are shown below. Fill the table. Q TFC TVC TC MC TR MR PROFIT/LOSS 400 100 400 50 200 400 100 300 400 130 400 400 180 500 400 220 600 400 350 700 400 450 400 800 price of steel is P150/unit 600
. A major cattle feeding operation has entered into a firm commitment to buy 100,000bushels of corn to be delivered to its feed lot in Kansas. The corn is expected to be delivered in90 days. The company is committed to pay $1.50 per bushel. If corn yields are greater thanexpected, the price of corn could decline and the company would experience higher operatingcosts than necessary as a result of the commitment.In order to protect itself against falling corn prices, the company purchased an option to sellcorn in 90 days at a strike price of $1.51 per bushel delivered to a facility in Nebraska.1. Assume that at the time of acquiring the put option, the price of corn was more than $1.51.Explain why the option had a value of more than zero at inception.2. Assume that one of your colleagues made the following comment: ‘‘An option can neverhave a negative value; therefore, you can never lose money on an option.’’ Discuss whetheror not you agree with your colleague.3. Assuming that only the…
Exercises Calculate the marginal product Total Marginal Product Production Labor Product or Alternative Inputs Output A na B 1 10 10 C 2 25 45 60 70 75 75 70 E 4 5 H 7 Please fill in the blank cells and answer the questions below. Click to see the answers. Alternative Number of Workers Output Marginal Product na B 1 200 2 500 825 1000 300 4 1125 1225 H. 7 1200 1050 8. At what point does diminishing marginal returns set in? At what point does negative MP occur? N3
PRICE (Dollars per ton) 80 72 64 56 48 40 32 24 16 8 0 0 Demand 120 240 360 480 600 720 840 960 1080 1200 QUANTITY (Thousands of tons) Supply (20 firms) Supply (40 firms) Supply (60 firms) True False (?) If there were 60 firms in this market, the short-run equilibrium price of steel would be $ per ton. At that price, firms in this industry would Therefore, in the long run, firms would the steel market. Because you know that competitive firms earn economic profit in the long run, you know the long-run equilibrium price must be $ per ton. From the graph, you can see that this means there will be firms operating in the steel 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.
The Trouser Company has fixed costs of 2,400 per week. In addition, we have some information about its total costs of production.Output020406080100120140TC2400530067007200770091001200017400a) For each of the output levels in the table, calculate the Trouser Company’s average variable costs (AVC), average (total) cost (AC) and marginal cost (MC).b) Sketch a diagram showing the marginal cost curve, the average variable cost curve, and the firm’s short run supply curve. c) Explain how the firm would maximise its profit, assuming that it faces conditions of perfect competition, in the short run.

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