Unit 16: Monopolistic Competition
Many sellers, each with a slightly different product and a sliver of its own pricing power, competing away their profit through variety instead of price alone.
4 topics · 12 questions
Each topic is a path, not a menu: work down it in order and every question builds on the one above. Click any of them to watch the answer draw itself.
The Characteristics of Monopolistic Competition
- How it worksHow do many sellers, product differentiation, and free entry combine to give each firm a small, temporary sliver of market power?
- Common mistakeWhy isn't monopolistic competition just a smaller version of a monopoly?
- Going furtherWhat happens to a monopolistically competitive firm's demand curve if a new competitor opens two blocks away selling something similar?
Your turn1 of 2
A dozen coffee shops on the same street each sell a slightly different blend and atmosphere, with new shops free to open whenever they see an opportunity. What combination of features defines this as monopolistic competition rather than perfect competition or monopoly?Entry, Exit, and Long-Run Zero Profit
- How it worksHow does free entry push a monopolistically competitive firm's long-run economic profit down to zero, just as it does in perfect competition?
- Common mistakeWhy doesn't zero long-run economic profit mean every coffee shop on the block charges the exact same price?
- Ties togetherHow does the entry process here echo the same zero-profit outcome the course already found in perfectly competitive markets?
Your turn1 of 2
A coffee shop currently earns 2241 dollars in economic profit. As free entry drives long-run economic profit to zero, by how many dollars must its profit fall?Excess Capacity and the Markup over Marginal Cost
- How it worksHow does a downward-sloping demand curve leave even a zero-profit monopolistically competitive firm pricing above marginal cost?
- Common mistakeWhy isn't the small deadweight loss from this markup automatically a reason to regulate every coffee shop like a monopoly?
- Going furtherWhat happens to a firm's excess capacity as its product becomes a closer and closer substitute for its rivals'?
Your turn1 of 2
Find the markup over marginal cost when a firm charges 12 dollars and marginal cost is 7 dollars at its chosen output.Advertising and Brand Names
- How it worksHow does advertising let a firm signal product quality and build the brand loyalty that gives it a bit of pricing power?
- Common mistakeWhy isn't advertising's only economic effect wasted spending with no real informational content?
- Ties togetherHow does a strong brand name work like the product differentiation that defines monopolistic competition in the first place?
Your turn1 of 2
A company spends millions of dollars advertising a product that seems simple enough not to need much explaining. What economic purpose can this spending still serve?