What defines a monopoly as a market structure?
A monopoly is a market with a single firm that has no close substitutes for its product, market power to set prices, and faced with significant barriers to entry.
Monopoly — definition?
One firm with no close substitutes, market power
How does a monopoly maximize profits, and what is the relationship between marginal revenue and price?
A monopoly maximizes profit where marginal revenue equals marginal cost (MR=MC). Its marginal revenue is always less than the price due to the downward-sloping demand curve.
Market share — regulatory concern?
Above 25% raises regulatory concern
What is deadweight loss in a monopoly, and how does it relate to social welfare?
Deadweight loss is the reduction in social welfare caused by underproduction and underconsumption in a monopoly, leading to inefficiency similar to a tax or market failure.
Price setter — demand curve?
Facing downward-sloping demand curve
Revenue formulas?
TR = P × Q; AR = P; MR < P
Profit maximization?
Where MR = MC, then set price from demand
Monopoly profit — formula?
(P − ATC) × Q
Deadweight loss — cause?
Underproduction due to market power
Test your knowledge with 10 questions on Understanding Monopoly Market Power.
1. What is a primary characteristic of a monopoly in terms of demand curve and pricing power?
2. What is a key characteristic of a monopoly market?
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