In almost every major industry, there comes a point where competition doesn’t shrink to one winner, or even two, but three. It’s a curious sweet spot: small enough for those at the top to dominate, but just big enough to sidestep the scrutiny that comes with true monopoly or duopoly power. Economists have pointed out this pattern for decades across banking, airlines, car manufacturing, supermarkets, and now, streaming.
The proposed Netflix–Warner Bros. Discovery deal is the latest chapter in a much older story: the strategic consolidation of power into a Big Three.
Why Three Is the Magic Number
From a regulatory standpoint, three firms competing looks healthier than one or two. It suggests choice, rivalry, and innovation. But from a market-power standpoint, three is more than enough to:
- control pricing,
- shape consumer expectations,
- squeeze out smaller competitors, and
- erect enormous barriers to entry.
It avoids the “red flag” of monopoly, while still creating an environment where the top players behave like a coordinated bloc – not through explicit collusion, but through sheer market weight and shared incentives.
This is sometimes called oligopolistic comfort: powerful enough to dominate, not concentrated enough to provoke intervention.
The Big Three Go Digital
The streaming market once seemed vibrant and competitive. There were newcomers everywhere from Netflix, to Hulu, Disney+, HBO Max, Amazon, Paramount+, Apple TV+.
But history tells us that industries built on massive capital investment and subscription revenue almost always consolidate. As subscriber fatigue rises and content costs balloon, the economics favour mergers and acquisitions. The result? A funnel that narrows until only a handful of giants remain.
Today’s streaming landscape is already edging toward a Big Three reality:
- Netflix – the global leader with unmatched subscriber reach.
- Disney – owner of Marvel, Star Wars, Pixar, Hulu, and ESPN.
- Amazon Prime Video – with near-limitless financial backing and a global distribution engine.
If Netflix acquires Warner Bros. Discovery, folding HBO Max, Warner’s historic film library, and Discovery’s reality empire into its already dominant platform – that Big Three becomes even more entrenched.
How “Big Three” Strategies Avoid Antitrust Issues
Governments tend to intervene when markets collapse into one or two players. In contrast, a market with three large competitors looks competitive on paper. Regulators see options, consumers feel they have choices, and politicians hesitate to interfere.
But the reality is more subtle in that three firms can control the majority, dictate pricing, and outbid smaller competitors for intellectual property rights.
Australia’s Big Three
Australia has quietly been living in Big Three territory for decades. We talk a lot about monopolies and duopolies, and the ACCC certainly keeps an eye on them, but in practice, many essential industries settle into a comfortable trio of dominant players.
You see it everywhere once you start looking.
In supermarkets, it’s Woolworths, Coles, and ALDI.
In telecommunications, every mobile phone plan, even the cheaply branded resellers, ultimately sits on the infrastructure of Telstra, Optus, or Vodafone.
Energy is the same story. AGL, Origin, and EnergyAustralia dominate electricity and gas retailing across the eastern states.
Air travel? Qantas, Virgin, and Rex.
News and media? Seven, Nine, and Ten, with News Corp, Nine Publishing and Seven West Media controlling the bulk of print and digital.
Even banking, which we like to frame as the “Big Four,” often behaves like a Big Three in key retail markets: Commonwealth, Westpac, and NAB.
These industries aren’t identical, but their trajectories are. As markets mature, costs rise, and competition becomes expensive to maintain, companies merge, acquire, and consolidate until only three real contenders remain.
For further reading, check out The Conversation’s article here.
And the ACCC website here for Competition and Anti-Competitive Behaviour.
