The following diagram shows the market demand for copper.Use the orange points (square symbol) to plot the initial short-run industry supply curve when there are 10 firms in the market. (Hint: You candisregard the portion of the supply curve that corresponds to prices where there is no output since this is the industry supply curve.) Next, use thepurple points (diamond symbol) to plot the short-run industry supply curve when there are 20 firms. Finally, use the green points (triangle symbol) toplot the short-run industry supply curve when there are 30 firms.8072Supply (10 firms)645648DemandSupply (20 firms)4032Supply (30 firms)241681202403604806007208409601080 1200QUANTITY (Thousands of pounds)If there were 10 firms in this market, the short-run equilibrium price of copper would be $per pound. At that price, firms in this industrywould. Therefore, in the long run, firms wouldthe copper market.Because you know that competitive firms earneconomic profit in the long run, you know the long-run equilibrium price must be$per pound. From the graph, you can see that this means there will befirms operating in the copper industry in long-runequilibrium.PRICE (Dollars per pound) 7. Short-run supply and long-run equilibriumConsider the competitive market for copper. 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.8072645648ATC403224AVC16MC O8481216202428323640QUANTITY (Thousands of pounds)The following diagram shows the market demand for copper.COSTS (Dollars per pound)

In a perfectly competitive market, the supply curve is the same as the marginal cost curve of the…

Use the orange points (square symbol) to plot the initial short-run industry supply curve when there are 10 firms in the market. (Hint: You can disregard the portion of the supply curve that corresponds to prices where there is no output since this is the industry supply curve.) Next, use the purple points (diamond symbol) to plot the short-run industry supply curve when there are 20 firms. Finally, use the green points (triangle symbol) to plot the short-run industry supply curve when there are 30 firms.

Use the orange points (square symbol) to plot the initial short-run industry supply curve when there are 10 firms in the market. (Hint: You can disregard the portion of the supply curve that corresponds to prices where there is no output since this is the industry supply curve.) Next, use the purple points (diamond symbol) to plot the short-run industry supply curve when there are 20 firms. Finally, use the green points (triangle symbol) to plot the short-run industry supply curve when there are 30 firms.

Microeconomic Theory

12th Edition

ISBN:9781337517942

Author:NICHOLSON

Publisher:NICHOLSON

Chapter12: The Partial Equilibrium Competitive Model

Section: Chapter Questions

Problem 12.6P

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7. Short-run supply and long-run equilibrium Consider the competitive market for copper. Assume that, regardless of how many firms are in the industry, every firm in the industry is identical and faces the marginal cost (MC), average total cost (ATC), and average variable cost (AVC) curves shown on the following graph. COSTS (Dollars per pound) 80 72 64 56 48 40 32 24 16 8 0 0 MC ATC AVC 4 8 12 16 20 24 QUANTITY (Thousands of pounds) 0 n 28 32 U 36 40 (?)
Consider the competitive market for copper. Assume that, regardless of how many firms are in the industry, every firm in the industry is identical and faces the marginal cost (MC), average total cost (ATC), and average variable cost (AVC) curves shown on the following graph. 100 90 80 70 60 50 40 ATC 30 20 AVC 10 MC O 10 15 20 25 30 35 40 45 50 QUANTITY (Thousands of pounds) COSTS (Dollars per pound)
The following diagram shows the market demand for copper. Use the orange points (square symbol) to plot the initial short-run industry supply curve when there are 10 firms in the market. (Hint: You can disregard the portion of the supply curve that corresponds to prices where there is no output, since this is the industry supply curve.) Next, use the purple points (diamond symbol) to plot the short-run industry supply curve when there are 15 firms. Finally, use the green points (triangle symbol) to plot the short-run industry supply curve when there are 20 firms. 100 Supply (10 firms) 60 Supply (15 firms) 50 Supply (20 firma) Demand 30 20 10 125 250 375 500 25 750 s 1000 1125 1250 QUANTITY (Thousands of pounds) If there were 10 firms in this market, the short-run equilibrium price of copper would be S would per pound. At that price, firms in this industry Therefore, in the long run, firms would the copper market. Because you know that perfecty competitive firms earn be s economic…
The blue curve on the following graph represents the demand curve facing a firm that can set its own prices. Use the graph input tool to help you answer the following questions. You will not be graded on any changes you make to this graph. Note: Once you enter a value in a white field, the graph and any corresponding amounts in each grey field will change accordingly. PRICE (Dollars per unit) 150 135 120 105 90 75 60 45 30 15 0 0 Demand 5 10 15 20 25 30 35 40 45 50 QUANTITY (Units) Graph Input Tool Market for Goods Quantity Demanded (Units) Demand Price (Dollars per unit) 25 75.00 On the graph input tool, change the number found in the Quantity Demanded field to determine the prices that correspond to the production of 0, 10, 20, 25, 30, 40, and 50 units of output. Calculate the total revenue for each of these production levels. Then, on the following graph, use the green points (triangle symbol) to plot the results.
For many decades, the Royal Mail had a legal monopoly in the U.K. Companies in thepostal business have increasing returns to scale, then constant returns to scale, andthen decreasing returns to scale. The Royal Mail’s minimum average cost is £2 at 100million deliveries and its minimum marginal cost is £1 at 75 million deliveries.The demand for postage is zero at a price of £10, and demand is 300 milliondeliveries at a price of £0. Marginal revenue is zero at a price of £10 and 150 at aprice of £0.Note: Unless otherwise stated, the numerical answers in this question do not need tobe exact but should correspond to how you have drawn your graph. (a) Draw a large graph showing the Royal Mail’s average cost curve and itsmarginal cost curve. Show how many deliveries would be made, and at whatprice, if Royal Mail operated as a monopoly. Show the Royal Mail’s profit orloss on the graph. (b) The government makes a law restricting the price of postage to £1. Show theeffect of this policy in the…
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For many decades, the Royal Mail had a legal monopoly in the U.K. Companies in thepostal business have increasing returns to scale, then constant returns to scale, andthen decreasing returns to scale. The Royal Mail’s minimum average cost is £2 at 100million deliveries and its minimum marginal cost is £1 at 75 million deliveries.The demand for postage is zero at a price of £10, and demand is 300 milliondeliveries at a price of £0. Marginal revenue is zero at a price of £10 and 150 at aprice of £0.Note: Unless otherwise stated, the numerical answers in this question do not need tobe exact but should correspond to how you have drawn your graph. The government makes a law restricting the price of postage to £1. Show theeffect of this policy in the short-run in a new, large graph. The graph shouldshow the firm’s average cost, marginal cost, marginal revenue, and consumerdemand. How much postage is bought? Show on your graph if the Royal Mailis in profit or loss, and by how much.
Consider the perfectly competitive market for steel. Assume that, regardless of how many firms are in the industry, every firm in the industry is identical and faces the marginal cost (MC), average total cost (ATC), and average variable cost (AVC) curves shown on the following graph. 100 90 90 70 60 50 40 ATC 30 20 AVC 10 MC O 10 15 20 25 30 35 40 45 50 QUANTITY (Thousands of tons) COSTS (Dollars per ton)
The blue curve on the following graph represents the demand curve facing a firm that can set its own prices. Use the graph input tool to help you answer the following questions. You will not be graded on any changes you make to this graph. Note: Once you enter a value in a white field, the graph and any corresponding amounts in each grey field will change accordingly. 200 180 160 140 120 100 80 60 40 PRICE (Dollars per unit) + Demand 20 0 01 2 3 4 5 6 7 8 9 10 QUANTITY (Units) Graph Input Tool Market for Goods Quantity Demanded (Units). Demand Price (Dollars per unit). 5 100.00 ?
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The following diagram shows the market demand for steel. Use the orange points (square symbol) to plot the initial short-run industry supply curve when there are 10 firms in the market. (Hint: You can disregard the portion of the supply curve that corresponds to prices where there is no output since this is the industry supply curve.) Next, use the purple points (diamond symbol) to plot the short-run industry supply curve when there are 20 firms. Finally, use the green points (triangle symbol) to plot the short-run industry supply curve when there are 30 firms. Supply (10 firms)Supply (20 firms)Supply (30 firms)01202403604806007208409601080120080726456484032241680PRICE (Dollars per ton)QUANTITY (Thousands of tons)Demand If there were 20 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…