Monopolistic competition is a market structure where many companies sell products that are similar but not identical. It combines characteristics of both monopoly and perfect competition.
Key Features:
- Many firms operate in the market.
- Companies use product differentiation through design, quality, branding, or location.
- Firms have some control over prices, meaning they have a downward-sloping demand curve.
- There is free entry and exit for firms in the long run.
- Companies compete using methods other than price, such as advertising.
Equilibrium:
- Short-Run: Firms seek to maximize profit where marginal revenue equals marginal cost. They can earn extra profit during this time.
- Long-Run: New firms enter the market until existing firms earn zero economic profit. Prices equal the average cost, and firms operate with excess capacity.
Examples:
- Restaurants and clothing stores.
- Fast food chains like McDonald’s and Burger King.
- Mobile phone service providers.
Welfare Effects:
- Consumers benefit from greater product variety.
- However, products cost more than in perfect competition, leading to some inefficiency and deadweight loss.