What is an example of a two-sided marketplace?

Asked "What is an example of a two-sided marketplace?", ChatGPT, Copilot, Gemini, Google AI Mode and Perplexity named 11 distinct names across 5 answers on September 9, 2026, and 6 of them in two or more answers, and all 5 engines agreed on Airbnb, the only name every engine named.

Measured acrossChatGPTCopilotGeminiGoogle AI ModePerplexity

6 of 11 names confirmed · named in 2 or more of 5 answers · asked September 9, 2026 · 5 engines

An example of a two-sided marketplace is Airbnb, which connects hosts offering spaces with guests seeking places to stay. Other examples include Uber, eBay, and freelance platforms like Upwork. These platforms create value by enabling direct interactions and transactions between two distinct groups of users, typically buyers and sellers, and become more valuable as more people join both sides due to network effects.

1Airbnbnamed in 5 of 5 answers
2Ubernamed in 5 of 5 answers
3eBaynamed in 4 of 5 answers
4Etsynamed in 3 of 5 answers
5Upworknamed in 3 of 5 answers
6DoorDashnamed in 3 of 5 answers
7Lyftnamed in 1 of 5 answersone answer
8Amazon Marketplacenamed in 1 of 5 answersone answer
9App Storenamed in 1 of 5 answersone answer
10Google Playnamed in 1 of 5 answersone answer
11Uber Eatsnamed in 1 of 5 answersone answer

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The full measurement

The position each of the 5 engines gave all 11 names.
How many of the 5 answers named each of them.
28 sampled observations behind this ranking, and where the engines disagree.
Fan-out — the query each engine actually searched.
Every citation, and the sources nobody cited.

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