Monopoly and Monopolistic
Not what you're looking for?
Monopoly and Monopolistic Competition
DQ1. There are four firms in an industry with the following market shares:
Firm 1 30%
Firm 2 25%
Firm 3 25%
Firm 4 20%
a) Calculate the Herfindahl Hirschman Index for the industry.
b) What is the number of effective competitors in this market? Show your calculation.
DQ 2. Suppose the demand curve for a monopolist is given as:
Qd = 500- P
MR = 500 - 2Q
The monopolist has a constant marginal and average total cost of $50 per unit.
a) Determine the monopolist's profit-maximizing price and output.
b) Calculate the monopolist's profit.
c) What is the Lerner Index for the industry?
DQ 3. There are two industries, A and B; and each industry consists of four firms. However, each of the four firms in industry A has a 25% market shares while those firms in industry B have 80% 10%, 5% and 5% market respectively..
a) Calculate the three- and four-firm concentration ratios for each industry.
b) Calculate the Hirfindahl Hirschman Index for each industry.
c) Are these industries equally concentrated? Explain your answer.
Purchase this Solution
Solution Summary
Market structure and profit maximization
Solution Preview
Monopoly and Monopolistic Competition
DQ1. There are four firms in an industry with the following market shares:
Firm 1 30%
Firm 2 25%
Firm 3 25%
Firm 4 20%
a) Calculate the Herfindahl Hirschman Index for the industry.
HHI = .3^2 + .25^2 *2 + .2^2 = 0.255
b) What is the number of effective competitors in this market? Show your calculation.
Inverting the HHI provides us with the number of competitors which are affecting the market:
1/0.255 = 3.9 or about 4 firms.
DQ 2. Suppose the demand curve for a ...
Purchase this Solution
Free BrainMass Quizzes
Pricing Strategies
Discussion about various pricing techniques of profit-seeking firms.
Economic Issues and Concepts
This quiz provides a review of the basic microeconomic concepts. Students can test their understanding of major economic issues.
Elementary Microeconomics
This quiz reviews the basic concept of supply and demand analysis.
Basics of Economics
Quiz will help you to review some basics of microeconomics and macroeconomics which are often not understood.
Economics, Basic Concepts, Demand-Supply-Equilibrium
The quiz tests the basic concepts of demand, supply, and equilibrium in a free market.