A two-sided market brings two different user groups together and creates value by matching them: drivers and riders, hosts and guests, buyers and sellers. Neither side is useful without the other. The operator sets prices for both sides and usually earns a commission on each transaction rather than selling a product.
The hard part is the start. Sellers do not join an empty marketplace, and buyers do not visit one without sellers. This is known as the chicken-and-egg problem. The usual answers are: subsidise one side, for example with free listings until volume exists; start in one city or one narrow category so that density looks high; or make the product useful for one side alone before any matching begins.
The economics need volume. Suppose you take a 10 percent commission and the average booking is 80 euros, so you earn 8 euros per match. To reach 25,000 euros of monthly revenue you need 250,000 euros of transaction volume, which is 3,125 bookings a month, or about 100 a day. Write that number down early. It is usually much larger than founders expect.
Pricing rarely stays symmetric. The side that is scarcer or more price-sensitive gets the discount, and the side that gains most pays. Restaurants pay the delivery platform; diners pay little beyond the food.
Where founders go wrong: they build both sides at once in a large market and end up with too few of each, so nobody finds a match. Density matters more than reach. Twenty sellers in one postcode work better than 2,000 spread across a country. A second mistake is ignoring the risk that both parties meet through you and then deal directly to avoid your fee. Platforms counter that with payment handling, guarantees, insurance or reviews that only work inside the system.
This pattern is one of 43 business model options checked against each idea, so it appears in a generated plan whenever a concept has two user groups that need each other.
