Microeconomics (2nd Edition) (Pearson Series in Economics)
2nd Edition
ISBN: 9780134492049
Author: Daron Acemoglu, David Laibson, John List
Publisher: PEARSON
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Question
Chapter 14, Problem 12P
(a)
To determine
Highest value HHI can take in the given scenario.
(b)
To determine
Lowest value HHI-Index can take in the given scenario.
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Suppose that there are 8 firms in a market, 3 firms produce 90% of the goods (each produces 30%) and 5 small firms produce the remaining 10% of the output (each produces 2%)
(1) What is the value of the Herfindahl-Hirshman index in this market? Please show all your calculation. Points will be deducted if there is only a number without middle steps.
Hint: it would be a number between 0 and 1.
(2) A market is considered as "concentrated" if its HHI is greater than 0.18 and "highly concentrated" if HHI is greater than 0.25. Based on your calculation in the last question, what would you say about the market?
Q1: What is the, HHI, Herfindahl-Hirschman Index for an industry where six companies each have a market share of 15% and one company which has a market share of 10%?
Q2:About fifty years ago, the EPA, Environmental Protection Agency, embraced command and control laws. Later on, the EPA made adjustments and updates. These laws and their adjustments,
a/ draws distinctions between the needs of firms and costly equipment upgrades.
b/ are given considerable credit for cleaner air and water in recent decades.
c/ were an inexpensive incentive for industrial polluters to improve performance.
d/ were necessary as US industries had zero incentive to control pollution.
A market is dominated by five firms, each with an equal share of market sales. What is the Herfindahl-Hirschman Index for this market?
Chapter 14 Solutions
Microeconomics (2nd Edition) (Pearson Series in Economics)
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Similar questions
- 1. Exercise 16.2 An industry is composed of Firm 1, which controls 50 percent of the market, Firm 2 with 30 percent of the market, and Firm 3 with 10 percent of the market. About 20 firms of approximately equal size divide the remaining 10 percent of the market. What is the Herfindahl-Hirschman Index for the industry? (Hint: Assume the 20 firms that make up 10 percent of the market constitute one firm.)What will the Herfindahl-Hirschman Index be if Firm 2 and Firm 3 merge? (Hint: Assume that the combined market share after the merger is 40 percent) Based on the HHI scores, will the government consider the merger of Firm 2 with Firm 3 to be procompetitive or anticompetitive? Anticompetitive Procompetitiarrow_forwardUse the following table to calculate the Herfindal-Hirshman Index for the U.S. auto market. Would the FTC approve a merger between Gm and Ford? Explain your response. The table is......... GM 19% Ford 17% Toyota 14% Chrysler 11%arrow_forwardSuppose Fiat recently entered into an Agreement and Plan of Merger with Case for $4.3 billion. Prior to the merger, the market for four-wheel-drive tractors consisted of five firms. The market was highly concentrated, with a Herfindahl-Hirschman index of 2,765. Case’s share of that market was 22 percent, while Fiat comprised just 12 percent of the market. If approved, by how much would the postmerger Herfindahl-Hirschman index increase? Based only on this information, do you think the Justice Department would challenge the merger? Explain.arrow_forward
- The table below shows market share data for different firms producing desks. Market Share in % 15 18 7 11 6 10 4 5 5 16 Firm Aardvark Inc Baluga, LLC Cran Inc Delta Co Echo Co Farriss Co Gum Drop Inc Hill Corp Indigo Corp Jackson Co What is the Herfindahl Hirschman Index (HHI) for this market? ← HHI 225 324 49 121 36 100 16 25 25 256 Suppose that Delta Co and Gum Drop Inc are considering a merger. What will the HHI be after this merger?arrow_forwardSuppose Fiat recently entered into an Agreement and Plan of Merger with Case for $4.3 billion. Prior to the merger, the market for four-wheel-drive tractors consisted of five firms. The market was highly concentrated, with a Herfindahl-Hirschman index of 3,085. Case’s share of that market was 11 percent, while Fiat comprised just 7 percent of the market. If approved, by how much would the postmerger Herfindahl-Hirschman index increase?arrow_forwardYou are the manager in a market composed of 20 firms, each of which has a 5.00 percent market share. In addition, each firm has a strong financial position and is located within a 100-mile radius of its competitors. a. Calculate the premerger Herfindahl-Hirschman index (HHI) for this market? b. Suppose that any two of these firms merge. What is the postmerger HHI? c. Based only on the information contained in this question and on the U.S. Department of Justice Horizontal Merger Guidelines described in this chapter, do you think the Justice Department would attempt to block a merger between any two of the firms?multiple choice It may but will also consider other factors. It likely will not. It likely will.arrow_forward
- Suppose Fiat recently entered into an Agreement and Plan of Merger with Case for $4.3 billion. Prior to the merger, the market for four-wheel-drive tractors consisted of five firms. The market was highly concentrated, with a Herfindahl- Hirschman index of 2,650. Case's share of that market was 18 percent, while Fiat comprised just 9 percent of the market. If approved, by how much would the postmerger Herfindahl-Hirschman index increase? Based only on this information, is the Justice Department likely to challenge the merger according to the Horizontal Merger Guidelines? Possibly - but other factors will be considered Yes Ο NOarrow_forwardSuppose Fiat recently entered into an Agreement and Plan of Merger with Case for $4.3 billion. Prior to the merger, the market for four-wheel-drive tractors consisted of five firms. The market was highly concentrated, with a Herfindahl-Hirschman index of 2,650. Case's share of that market was 18 percent, while Fiat comprised just 9 percent of the market. If approved, by how much would the postmerger Herfindahl-Hirschman index increase? Based only on this information, is the Justice Department likely to challenge the merger according to the Horizontal Merger Guidelines? Yes O Possibly - but other factors will be considered O Noarrow_forward.A measure called Herfindahl-Hirschman Index is used to measure the degree of competition in an industry. The HHI is the square of each firm’s market share summed over the firms in the industry. (Where a market share is the percentage of sales in the market accounted for by that firm). For example, if an industry contains only three firms and their market shares are 60%, 25%, and 15% then the HHI (by squaring each firm’s share and summing them) is 4450. Some economists classify the market structures according to HHI scores. An HHI below 1,500 indicates a strongly competitive market, between 1,500 and 2,500 indicates a somewhat competitive market, and over 2,500 indicates an oligopoly. Given the information in the table, calculate the HHI in this industry. If yahoo and Bing were to merge, what would the HHI be? Google 67% Yahoo 18 Bing 11 Ask 3 AOL 1arrow_forward
- suppose fiat recently entered into an agreement and plan of merger with case for $4.3 billion. prior to the merger, the market for four wheel drive tractors consisted of five firms. the market was highly concentrated, with herfindahl-hirschman index of 2,915. case's share of that market was 13 percent, while fiat comprised just 7 percent of the market. if approved, by how much would the post merger herfindahl-hirschman index increasearrow_forwardIndustry A consists of four firms, each of which has an equal share of the market. Compute the Herfindahl-Hirschman index for the industry. Industry B consists of 10 firms, each of which has an equal share of the market. Compare the Herfindahl–Hirschman Indexes for the two industries. Now suppose that there are 100 firms in the industry, each with equal shares. What is the Herfindahl-Hirschman index for this industry? State the general relationship between the competitiveness of an industry and its Herfindahl-Hirschman indexarrow_forwardB.A measure called Herfindahl-Hirschman Index is used to measure the degree of competition in an industry. The HHI is the square of each firm's market share summed over the firms in the industry. (Where market share is the percentage of sales in the market accounted for by that firm). For example, if an industry contains only three firms and their market shares are 60%, 25%, and 15% then the HHI (by squaring each firm's share and summing them) is 4450. Some economists classify the market structures according to HHI scores. An HHI below 1,500 indicates astrongly competitive market, between 1,500 and 2,500 indicates a somewhat competitivemarket, and over 2,500 indicates an oligopoly. Given the information in the table, calculate the HHI in this industry. If yahoo and Bing were to merge, what would the HHI be? Search engine Market share Google 67% Bing 18 Yahoo! 11 Activate Windo Go to Settings to act Ask 3 AOL 1arrow_forward
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