What it means
The word "monopolistic" refers to each firm's distinct version of a product, not to a single firm controlling the whole market, while "competition" refers to the alternatives available to buyers. A cafe can choose a price for its coffee, but nearby cafes limit what many customers will pay.
Differentiation can come from quality, location, service, design or reputation, and it can be real or perceived. Customers may still switch when the price gap becomes larger than the difference they value.
A firm faces a downward-sloping demand curve in the simple model, so raising price may lose some customers rather than all of them, unlike a perfectly competitive price taker. The actual response depends on substitute offers and the strength of the firm's distinction.
Short-run economic profit can attract new entrants, who offer their own versions so each existing seller may lose some demand. In the textbook long-run model with free entry, economic profits tend toward zero after accounting for opportunity costs, not necessarily accounting profit.
Real entry is rarely costless, because leases, licences, scarce sites, customer habits and brand investment can slow or limit it, so a manager should not use the model to promise that profits vanish on a fixed timetable. Firms compete through price and non-price choices.
Better service, new features or a clearer promise may help one firm, but each choice has a cost, so a new brand campaign is worth funding only if it supports demand or margin enough to justify its expense. The model also predicts variety: customers may benefit from different styles or locations, even though many small firms can have higher average costs than a single large producer, which is a trade-off rather than a judgement that every new entrant is inefficient.
For a small business, identify substitutes customers actually consider and why they choose your offer. Measure how price changes affect volume and contribution.
Watch new entrants, but protect a valued customer experience rather than copying every competitor.
In practice
Real-world examples.
Example
A street has ten cafes. One charges 20% more because of its specialty coffee and cosy seating, and still stays busy.
Example
A hair salon builds a loyal client base through skilled stylists and online booking, allowing it to charge above the local average.
Example
A new burger restaurant opens with a unique menu and draws customers away from established competitors until they respond with new offers.
Formula
Calculation
A price premium can describe positioning but does not define monopolistic competition. Illustrative premium = (your price - a comparable rival price) / comparable rival price x 100. The offers must be comparable, and the measure says nothing by itself about profit.
Worked fictional example. A cafe charges $22 for a drink while a nearby comparable alternative costs $18, giving a premium of (22 - 18) / 18 x 100 = 22.2%. At 300 cups, revenue would be $6,600 at $22; if the higher price reduces volume to 270 cups, revenue is $5,940, compared with $5,400 for 300 cups at $18. Now add costs: if each drink costs $6 to make, contribution is 270 x ($22 - $6) = $4,320 at the higher price, against 300 x ($18 - $6) = $3,600 at the lower price. Here the premium pays despite the lost volume, but a larger volume loss or higher variable cost could reverse the answer.Case study
Seen in the real world.
This illustrative and entirely fictional example follows Saffron Table, a restaurant with a distinctive menu. New restaurants open nearby with some similar dishes. Bookings fall, but the owners do not assume imitation is the sole cause; they also check service quality and local demand. Saffron Table tests a tasting night and improves staff training, then monitors repeat visits, margin and customer feedback. Some guests value its experience enough to pay a higher price, while others choose alternatives.
Both outcomes fit a market with differentiated substitutes. In the fictional review bookings recover, but the team avoids claiming a permanent shield from competition. It keeps checking whether its added service costs are covered by contribution. Differentiation matters when customers value and pay for it.
Watch out
Common mistakes.
- Reading the name as a monopoly with no meaningful competitors.
- Assuming any price premium means higher profit without checking lost volume and costs.
- Treating the free-entry textbook result as a guaranteed timeline for a particular local market.
Questions
People also ask.
How is monopolistic competition different from perfect competition?
Perfect competition models identical products and price-taking firms. Monopolistic competition models differentiated offerings and some price-setting room.
Can businesses earn high profits in monopolistic competition?
Yes in the short run. With free entry in the textbook model, economic profit tends to be competed away over time; real barriers can change the outcome.
What are common examples?
Restaurants, cafes, salons and clothing sellers may resemble the model when many differentiated alternatives and relatively open entry exist.
From the founder's library

Take it further with the book.
Build your financial confidence beyond this definition. Shihan's full-length guide, Accounting Fundamentals, takes the same plain-English approach and turns it into a complete, practical playbook for non-finance managers, business owners and students - with chapter-end quiz answers and presentation slides included.
25% off with code MMHQ25, applied at checkout. Priced in USD - checkout may show the equivalent in your local currency.
View the book and save 25%