Aggregation Theory
Featuring Ben Thompson
Google does not make the content you search for. It just controls whether you find it. Ben Thompson coined Aggregation Theory in 2015 to explain why the internet rewired competition. The old world rewarded whoever controlled distribution: TV networks, Walmart shelf space, newspaper ad slots. Then the internet made distribution nearly free, and the scarce asset became the users themselves. Google aggregated everyone searching and commoditized the content producers who needed to reach them. Amazon aggregated shoppers and squeezed third-party sellers. Uber aggregated riders and reduced drivers to near-commodities.
For founders and operators, the sobering part is what this means if you are building inside someone else's aggregation. If 40% of your traffic comes from Google or 40% of your revenue runs through Amazon, you are a supplier on a platform that can change its terms, its algorithm, or its fees, and your only recourse is to leave, which you cannot, because they hold the demand. There are specific conditions under which an aggregator's power breaks down, and one thing you must own first to build one yourself. What those are is what the app holds back.
Frequently asked questions
What is Aggregation Theory and how does it work?
Aggregation Theory, coined by Ben Thompson in 2015, explains how the internet shifted power from whoever controlled distribution to whoever aggregates the users. When distribution became nearly free, the scarce asset became the users themselves, so aggregators own demand and commoditize the suppliers who need to reach them. This tends toward winner-take-most outcomes.
What are real examples of Aggregation Theory?
Google aggregated everyone searching and commoditized the content producers who needed that traffic. Amazon aggregated shoppers and squeezed third-party sellers, and Uber aggregated riders and reduced drivers to near-commodities. In each case the aggregator controls demand while the suppliers compete on the platform's terms.
What are the risks of building inside someone else's aggregation?
If a large share of your traffic comes from Google or your revenue runs through Amazon, you are a supplier on a platform that can change its terms, algorithm, or fees at any time. Your only recourse is to leave, which you cannot, because the aggregator holds the demand. That dependence is the core risk for anyone built on top of an aggregator.
What can founders learn from Aggregation Theory?
Founders should understand whether they are an aggregator or a supplier dependent on one, and avoid letting a single platform own their demand. To build an aggregator yourself, you first have to own the direct relationship with users rather than renting it. CaseBook helps you decide whether this model fits your business, with an AI coach that reads your answer.