Consider a perfectly competitive market depicted by the two figures below: (on the left) the industry supply and demand and (on the right) the marginal cost (MC), average total cost (ATC), and the marginal revenue (MR) for an individual firm in the market. Industry Price per unit S Representative firm MC ATC d = MR 9 Based on the figures above, firms that are operating in this market make continues, economic profits, and as long as this a. positive; the industry supply curve will shift to the left b. zero; new firms will not enter the market and existing firms will not leave either c. positive; new firms will enter the market and existing firms will not leave O d. negative; new firms will not enter the market and existing firms will leave

Consider a perfectly competitive market depicted by the two figures below: (on the left) the industry supply and demand and (on the right) the marginal cost (MC), average total cost (ATC), and the marginal revenue (MR) for an individual firm in the market. Industry Price per unit S Representative firm MC ATC d = MR 9 Based on the figures above, firms that are operating in this market make continues, economic profits, and as long as this a. positive; the industry supply curve will shift to the left b. zero; new firms will not enter the market and existing firms will not leave either c. positive; new firms will enter the market and existing firms will not leave O d. negative; new firms will not enter the market and existing firms will leave

Microeconomic Theory

12th Edition

ISBN:9781337517942

Author:NICHOLSON

Publisher:NICHOLSON

Chapter19: Externalities And Public Goods

Section: Chapter Questions

Problem 19.1P: A firm in a perfectly competitive industry has patented a newprocess for making widgets. The new...

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A firm in a perfectly competitive industry has patented a newprocess for making widgets. The new process lowers the firm’saverage cost, meaning that this firm alone (although still aprice taker) can earn real economic profits in the long run. a. If the market price is $20 per widget and the firm’s marginalcost is given by MC=0.4q , where q is the dailywidget production for the firm, how many widgets willthe firm produce? b. Suppose a government study has found that the firm’snew process is polluting the air and estimates the socialmarginal cost of widget production by this firm to be. If the market price is still $20, what is thesocially optimal level of production for the firm? Whatshould be the rate of a government-imposed excise tax tobring about this optimal level of production? c. Graph your results.
The following graph shows the marginal cost curve for Oiram-46, a competitive firm producing magic hats. Suppose that currently, the prevailing market price is $1.50 per magic hat. On the following graph, use the blue points (circle symbol) to plot Oiram-46's price line. Then use the grey points (star symbol) to indicate the profit maximizing quantity of output produced by Oiram-46. TOTAL COST (Dollars) he 12 11 10 a 8 N 3 2 1 0 + Oiram-46 7 0 MC + H 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 QUANTITY (Magic hats per week) Based on the graph, Oiram-46's profit-maximizing quantity is Demand Profit maximizing quantity ? magic hats, average revenue is $ and marginal revenue is
4.5 Show that the long-run equilibrium number of firms is indeterminate when all firms in the industryshare the same constant returns-to-scale technology and face the same factor prices.4.7 Technology for producing q gives rise to the cost function c(q) = aq + bg. The market demand forqisp =a - Bq.(a) If a>0, if b < 0, and if there are J firms in the industry, what is the short-run equilibriummarket price and the output of a representative firm?b) Ifa> 0 and b <0, what is the long-run equilibrium market price and number of firms? Explain.() Ifa>0and b > 0, what is the long-un equilibrium market price and number of firms? Explain.
Consider the market for solar power. Assume the market is perfectly competitive and initially in long-run equilibrium; solar power sells for $.25 per kwh (kilowatt hour, a unit of power). Draw2graphs, oneto represent the market (supply and demand), and one to represent asingle firm (demand, marginal cost, and average cost curves). Assume a u-shaped average cost Show the equilibrium price and the quantity produced by the market (Q) and by each individual firm (q).
Suppose that the market for chicken momos is perfectly competitive with ten firms producing momos. Tasty treat is one of the ten price-takers in the market for momos. The accompanying tables show the demand schedule for momos in Dhaka and cost schedule for "Tasty Treat". DEMAND SCHEDULE Price (BDT per plate) Quantity demanded (plate per hour) 10 900 25 675 30 600 40 450 50 300 70 0 COST SCHEDULE OF TASTY TREAT Output (plate per hour) Marginal Cost (BDT per extra plate) Average Variable Cost (BDT per plate) Average total cost (BDT per plate) 40 20 25 90 50 10 10 75 60 30 20 55 70 50 23 50 80 70 35 60 90 85 50 77 a) What is the value of the shut-down price and break-even price for Tasty Treat?How did you figure that out?b) Write down the individual supply schedule of chicken momos for Tasty Treat and the industry supply schedule for chicken momos.c) Plot the market demand and supply curves for chicken momos and find the equilibrium price and…
Consider the competitive market for ruthenium. Assume that no matter how many firms operate in the industry, every firm is identical and faces the same marginal cost (MC), average total cost (ATC), and average variable cost (AVC) curves plotted in the following graph. COSTS (Dollars per pound), go 72 64 56 48 40 32 24 ATC 16 AVC MC- ☐ 0 4 8 12 16 20 24 28 32 36 40 QUANTITY (Thousands of pounds) The following graph plots the market demand curve for ruthenium.
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
The coffee industry is comprised of many firms producing an identical product. Market demand and supply conditions are indicated in the left-hand panel of the figure below; the long-run cost curves of a representative coffee farmer are shown in the right-hand Currently, the market price for coffee is $2 per pound, and at that price consumers are purchasing 800,000 pounds of coffee per day. Using the graphs shown in the images find:a. How many pounds of coffee will each farmer produce if they want to maximize profits?b. How many farmers are currently serving the industry (fractional numbers are fine)?c. In the long run, what will the equilibrium price of coffee be? Briefly explain your answer.
Consider the competitive market for ruthenium. Assume that no matter how many firms operate in the industry, every firm is identical and faces the same marginal cost (MC), average total cost (ATC), and average variable cost (AVC) curves plotted in the following graph. 80 72 56 · ཉི་ ཀ་ཇཱ་སྐ་ན་ COSTS (Dollars per pound) AVC 16 MC- 8 ATC B 12 16 20 24 28 QUANTITY (Thousands of pounds) 36 The following graph plots the market demand curve for ruthenium. ? 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. PRICE (Dollars per pound) 80 72…
The table below shows the weekly marginal cost (MC) and average total cost (ATC) for Buddies, a purely competitive firm that produces novelty ear buds. Assume the market for novelty ear buds is a competitive market and that the price of ear buds is $6.00 per pair. Buddies Production Costs MC ($) Quantity of Ear Buds 5 10 15 20 25 30 35 40 2.00 2.45 3.55 4.00 5.50 5.98 8.52 pairs ATC ($) 2.00 2.00 2.15 2.50 2.80 3.25 3.64 4.25 Check my work Instructions: In part a, enter your answer as the closest given whole number. In parts b-d, round your answers to two decimal places. a. If Buddies wants to maximize profits, how many pairs of ear buds should it produce each week? b. At the profit-maximizing quantity, what is the total cost of producing ear buds? c. If the market price for ear buds is $6 per pair, and Buddies produces the profit-maximizing quantity of ear buds, what will Buddies profit or loss be per week? d. Now assume the market price is $5.50 per pair, and Buddies produces the…
The graph shows the demand curve (D), average total cost curve (ATC), average variable cost curve (AVC), and the 90 - marginal cost curve (MC) for a perfectly (or purely) 80 - competitive firm. D= MR 70- Assuming that this firm maximizes profit, what is this firm's profit? 60 - ATC 50 AVC profit: $ 40 40- 30- MC 20 - 10- 40 10 20 30 50 60 70 80 90 Quantity Price and cost ($)
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.1. Give the equation for the market supply curve for the short run in which the number of firms is fixed.2. What is the equilibrium price and quantity for this market in the short run?3. In this equilibrium, how much does each firm produce? Calculate each firm's profit or loss. Is there incentive for firms to enter or exit?4. In the long run with free entry and exit, what is the equilibrium price and quantity in this market?5. In this long-run equilibrium, how much does each firm produce? How many firms are in themarket?