Homework Answers
1. Option D
- The four firm concentration ratio and the HHI index are the two important measures of industry concentrations.
- The four firm concentration ratio shows the total market share of the four largest firms in a particular industry.
- While the HHI index are the Herfindahl index, indicates the market concentration of each firm in an industry and also measures the level of competition that exists between them.
2. Option A
- Perfect competition is a market structure consisting of large number of firms without any market power.
- These firms are called price takers as they cannot influence the market and all the firms produce homogeneous goods.
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Which of the following are measures of industry concentration? A Four-firm concentration ratio @ HH index...
1. An industry having a four-firm concentration ratio of 85 percent: a. is an oligopoly. b....
1. An industry having a four-firm concentration ratio of 85 percent: a. is an oligopoly. b. is monopolistically competitive. c. is a monopoly. d. approximates perfect competition. 2. Industry Y is dominated by four large firms that hold market shares of 15, 20, 30 and, 35. If all the firms in industry Y merged into a single firm, the Herfindahl Index would become: a. 100 b. 10,000 c. 100,000 d. 1,000
All of the following are measures of market power except the: A) four-firm concentration ratio for...
All of the following are measures of market power except the: A) four-firm concentration ratio for an industry. B) Herfindahl-Hirschman Index. C) Minimum-Efficient Scale Index. D) Lerner Index.
Find the Herfindahl Index and the Four-Firm Concentration Ratio for an industry with: Five firms—one with...
Find the Herfindahl Index and the Four-Firm Concentration Ratio for an industry with: Five firms—one with 60 percent of the market and others with 25, 10, 3, and 2 percent of the market, respectively. One firm with 60 percent of the market and four others with 10 percent each. Ten firms with 8 percent of the market each and four other firms have 5 each.
The following table reports the four-firm concentration ratio for five different industries:
The following table reports the four-firm concentration ratio for five different industries:Refer to the table above. In which industry do the four largest firms have the most market power?Refer to the table above. In which industry do the four largest firms have the least market power?
Consider two industries, industry W and industry X. In industry W there are five companies, each...
Consider two industries, industry W and industry X. In industry W there are five companies, each with a market share of 20% of total sales. In industry X, there are six companies. One company has a 50% market share and each of the other five firms has a market share of 10%. a. Calculate the four-firm concentration ratio for each industry. b. Calculate the Herfindahl-Hirschman Index (HHI) for each industry. c. What do the values of the two concentration measures imply about the...
Define the lerner index, the bain index, and the four firm concentration ratio. Choose one and...
Define the lerner index, the bain index, and the four firm concentration ratio. Choose one and discuss some of he problems in calculating and interpreting it -- does it reflect the degree of monopoly power in an economically meaningful sense? Explain.
Which of the following measures is used by the Justice Department to evaluate the competitive effects...
Which of the following measures is used by the Justice Department to evaluate the competitive effects of proposed mergers? a. The Lerner Index. b. The eight-firm concentration ratio for an industry. c. The four-firm concentration ratio for an industry. d. The Herfindahl-Hirschman Index.
how does tge term market power relate to the concentration ratio in a particular industry? define...
how does tge term market power relate to the concentration ratio in a particular industry? define concentration ratio. what does four firm concentration ratio measure? explain how it measure this. the aircarft industry has four-firm concentration ratio of 84.8 the mattress industry has a four-firm concentration ration of 38.6. interpret these numbers and compare the market power of firms in these two industries. answer with your own word ( 200 words )
1. Answer the following questions: a. Why is the demand curve for a monopolist downward-sloping, while...
1. Answer the following questions:
a. Why is the demand curve for a monopolist downward-sloping,
while the demand curve for the perfectly competitive firm is
horizontal?
b. Suppose a perfectly competitive industry is suddenly
transformed to a monopoly industry. What will happen to price,
output, consumer and producer surplus, and deadweight loss?
c. If the wireless phone industry is dominated by four large
firms, each with 20% of market share, and 2 small firms, each with
10% market share, what...
The HHI for the breakfast cereal industry is 2,521, while the HHI for the bottled water industry is 1,409. Base...
The HHI for the breakfast cereal industry is 2,521, while the HHI for the bottled water industry is 1,409. Based on this: Market power is more concentrated among fewer firms in the breakfast cereal industry, as compared to the bottled water industry. The concentration of market power among firms in the breakfast cereal industry is the same as in the bottled water industry. Market power is more concentrated among fewer firms in the bottled water industry, as compared to the...
The following table reports the four-firm concentration ratio for five different industries:Refer to the table above. In which industry do the four largest firms have the most market power?Refer to the table above. In which industry do the four largest firms have the least market power?
1. Answer the following questions:
a. Why is the demand curve for a monopolist downward-sloping,
while the demand curve for the perfectly competitive firm is
horizontal?
b. Suppose a perfectly competitive industry is suddenly
transformed to a monopoly industry. What will happen to price,
output, consumer and producer surplus, and deadweight loss?
c. If the wireless phone industry is dominated by four large
firms, each with 20% of market share, and 2 small firms, each with
10% market share, what...
The HHI for the breakfast cereal industry is 2,521, while the HHI for the bottled water industry is 1,409. Based on this: Market power is more concentrated among fewer firms in the breakfast cereal industry, as compared to the bottled water industry. The concentration of market power among firms in the breakfast cereal industry is the same as in the bottled water industry. Market power is more concentrated among fewer firms in the bottled water industry, as compared to the...
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