Platform Economics: Monopoly and Antitrust in Tech
Why Breaking Up Big Tech Is Harder Than It Sounds
The most powerful monopolies in history didn't need to buy their competitors — they just made leaving feel impossible.
The Idea
Traditional antitrust law was built around a simple idea: if one company controls a market and raises prices, consumers get hurt, and regulators step in. Standard Oil, AT&T, Microsoft in the late 90s — all caught by this logic. But something strange happened with the internet platforms. Google, Meta, Amazon, and Apple achieved dominance while keeping prices — for consumers, at least — at zero. Free search. Free social networks. Free maps. The old legal machinery wasn't designed for this. What makes tech platforms genuinely different is the network effect: the product becomes more valuable as more people use it. WhatsApp is useful because everyone you know is on it. Google Search improves because billions of searches train it. This creates a self-reinforcing lock-in that has nothing to do with predatory pricing. The monopoly isn't built by undercutting rivals — it's built by becoming the default, the infrastructure, the thing you can't imagine not using. The sharper insight is this: in platform economics, the 'consumer' is often not the customer. You are the product being sold to advertisers, or the supplier being taxed by a marketplace. The harm isn't a higher price on your bill — it's less innovation, less choice, and a structural tax on every business that depends on the platform to reach you. Antitrust law is still catching up to this reality.
In the World
In 2020, the US Department of Justice filed a landmark antitrust suit against Google, focusing on one specific deal: the arrangement by which Google pays Apple somewhere in the range of a small country's annual budget to be the default search engine on every iPhone and Safari browser. The number leaked in court — tens of billions annually — shocked even people who'd assumed the deal was large. The DOJ's argument wasn't that Google's search was bad. It was that by buying the default position on the world's most popular phone, Google was effectively renting out the on-ramp to the internet and keeping rivals from ever reaching the scale needed to compete. Bing, DuckDuckGo, and others couldn't get enough searches to train their algorithms to match Google — not because they were inherently worse, but because they never got the data flywheel spinning fast enough. Google's quality lead was partly a product of its distribution dominance, not just its engineering. In August 2024, a federal judge ruled that Google had indeed acted as an illegal monopolist in search. What followed wasn't a quick fix but a slow, contentious argument about remedies — should the default deal be banned? Should Google be forced to share its search data? Should the company be broken apart? Each option carried enormous second-order consequences that regulators were visibly unprepared for. The ruling mattered. The solution remained elusive.
Why It Matters
It's tempting to shrug at tech antitrust as a fight between governments and companies wealthy enough to fund their own space programmes — entertaining, but remote from daily life. The reality is more granular. Every time you search, shop, scroll, or hail a ride, you're operating inside an economic structure that someone designed and that benefits specific parties. The app store tax that makes your favourite small developer's software more expensive or nonexistent? That's a platform toll. The ranking algorithm that puts sponsored results above the answer you actually want? That's a monetised default. The reason your local restaurant pays a significant cut of every delivery order to a platform it can't afford to leave? That's lock-in at work. Understanding platform economics doesn't require you to have a strong political view on regulation. But it does mean you can read news about antitrust cases not as abstract legal theatre but as arguments about who gets to set the rules of the digital economy — and who profits when the rules stay as they are.
A Question to Ponder
If the product you use every day became 20% worse tomorrow but switching would cost you your contacts, your history, and your network, would you leave — and what does your answer reveal about whether competition is actually protecting you?
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