Principles of Economics 2e
2nd Edition
ISBN: 9781947172364
Author: Steven A. Greenlaw; David Shapiro
Publisher: OpenStax
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Textbook Question
Chapter 11, Problem 2SCQ
Is it true that the four-firm concentration ratio puts more emphasis on one or two very large films, while the Herfindahl-Hirshmau Index puts more emphasis on all the films in the entire market? Explain briefly.
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Students have asked these similar questions
Based on this information, the four-firm concentration ratio is?
what is the Four-firm concentration ratio (CR4)?
what is the Herfindahl-Hirshman Index (HHI)?
and how are they different?
Question C2
The Australian Competition and Consumer Commission (ACCC) has opened an
investigation regarding collusion between the two major firms producing fire protection
gear for bush firefighters. The firms - Azure Associates and Blue Guard - contend that
they are quantity competitors and that the prices they are charging are a result of an
increase in price by their suppliers.
As part of the case, the ACCC has noted that the Australian firefighters typically purchase
their own protective gear and are thus price takers in the market. Both the ACCC and the
two firms under investigation agree that the market demand can be described by the
inverse demand function:
P(Q)=240-Q,
where Q is the total quantity provided by the two firms (i.e., Q=q₁ + 9B, where is the
9A
amount produced by Azure Associates and q, is the amount produced by Blue Guard).
All parties also agree that the two firms have identical production technologies and that
the two firms have the same constant marginal cost of…
Chapter 11 Solutions
Principles of Economics 2e
Ch. 11 - Is it true that a merger between two films that...Ch. 11 - Is it true that the four-firm concentration ratio...Ch. 11 - Some years ago. two intercity bus companies,...Ch. 11 - As a result of globalization and new information...Ch. 11 - Why would a firm choose to use one or more of the...Ch. 11 - Urban transit systems, especially those with rail...Ch. 11 - From the graph you drew to answer Exercise 11.6,...Ch. 11 - What real world changes made the deregulation...Ch. 11 - What are some of the benefits of the deregulation?Ch. 11 - What might some of the negatives of deregulation...
Ch. 11 - What is a corporate merger? What is an...Ch. 11 - What is the goal of antitrust policies?Ch. 11 - How do we measure a four-firm concentration ratio?...Ch. 11 - How do we measure a Herfindahl—Hirshman Index?...Ch. 11 - Why can it be difficult to decide what a market is...Ch. 11 - What is a minimum resale price maintenance...Ch. 11 - What is exclusive dealing? How might it reduce...Ch. 11 - What is a tie-in sale? How might it reduce...Ch. 11 - What is predatory pricing? How might it reduce...Ch. 11 - If public utilities are a natural monopoly, what...Ch. 11 - If public utilities are a natural monopoly, what...Ch. 11 - What is cost-plus regulation?Ch. 11 - What is price cap regulation?Ch. 11 - What is deregulation? Name some industries that...Ch. 11 - What is regulatory capture?Ch. 11 - Why does regulatory capture reduce the...Ch. 11 - Does either the four-firm concentration ratio or...Ch. 11 - What would be evidence of serious competition...Ch. 11 - Can you think of any examples of successful...Ch. 11 - If you were developing a product (like a web...Ch. 11 - In the middle of the twentieth century, major U.S....Ch. 11 - Why are urban areas willing to subsidize urban...Ch. 11 - Deregulation, like all changes in government...Ch. 11 - Do you think it is possible for government to...Ch. 11 - Use Table 11.5 to calculate the four-firm...Ch. 11 - Use Table 11.5 and Table 11.6 to calculate the...Ch. 11 - If the transit system were allowed to operate as...Ch. 11 - If the transit system were regulated to operate...Ch. 11 - If the transit system were regulated to provide...
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Similar questions
- Assume there are six companies in a certain industry. Four companies have $10 sales apiece, while two companies have $5 sales each. What is the industry's four-firm concentration ratio?arrow_forwardBriefly describe the Stackelberg model. How does this model differ from the Cournot model in terms of each firm's output and profits? How does the price in a Stackelberg model compare to the Cournot price and the monopoly price?arrow_forwardImagine any market divided by 2 Cournot oligopolists who have identical costs Marginal cost = Average cost = 200. About this market, ask yourself: a) If the demand curve for this market is given by Q = 1250 - 2.5P, where Q is the total quantity demanded in the market and P is the selling price, both given in units, what is the reaction curve of the oligopolists? b) What will be the quantity produced and the selling price of the oligopolists? c) A strategist considers that a good marketing campaign would be able to expand the Demand of this market to Q = 1,500 - 2.5P and that in this way, oligopolists could produce the same amount and make significantly greater profits. Such a campaign would generate a reduction in profits in the order of 70,000. Is it worth making this investment in marketing?arrow_forward
- Place the black point (plus symbol) on the following graph to indicate the profit-maximizing price and combined quantity of output if Mays and McCovey choose to work together. 2.00 Demand 1.80 Monopoly Outcome 1.60 1.40 MC = ATC 1.20 1.00 0.80 0.60 0.40 0.20 MR 90 180 270 360 450 540 630 720 810 900 QUANTITY (Cans of beer) PRICE (Dollars per can)arrow_forwardWhy is the graph of the cartel drawn exactly the same as the monopoly graph?arrow_forwardCalculate the four-firm concentration ratio (CR-4) given the sales data. Assume that the firms listed are the only firms in this market. Sales (millions of dollars) 7.4 7.1 Expressive 6.8 LA & Company 6.2 5.3 Forever 22 Limitless 4.2 What is the four-firm concentration ratio? Round to the nearest whole percent in your calculations. Retailer Dap American Jaybirdarrow_forward
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- Discuss why a producer in an oligopolist market ("few" competitors) will pay closer attention to their competitors than a producer in a highly competitive market ("many" competitors).arrow_forward10. Competitive Supermarkets A small town is served by many competing supermarkets, which all have the same constant marginal cost. Use the black point (plus symbol) to show the competitive price and quantity in this market. Then use the green area (triangle symbol) to shade the area representing consumer surplus in the market for groceries, and use the purple area (diamond symbol) to shade the area representing producer surplus. Competitive Market Demand Competitive Outcome Consumer Surplus Marginal Cost Producer Surplus Quantity of Groceries Price, Cost, Rev enuearrow_forwardWhat is the concentration ratio?arrow_forward
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