How do hidden power structures control industries?

When people describe hidden control of an industry, they usually picture a meeting. The real mechanisms are duller and published: ownership concentration, supply-chain chokepoints, standards bodies, licensing regimes and the cost of entry.

Four supermarkets, three banks or two airlines do not need to conspire to behave similarly. Similar incentives produce similar behaviour without a single phone call.

Large asset managers hold significant stakes in most listed companies simultaneously, including direct competitors. That is a matter of public record in shareholder registers, and economists argue seriously about its effects on competition.

Australia's own concentration in groceries, banking, telecommunications and media is unusually high for a developed economy, and parliamentary inquiries have examined it repeatedly.

Industries that fund the expertise regulators rely on tend to shape the rules they operate under. Staff move between regulator and regulated. Submissions to consultations come overwhelmingly from those with resources to write them.

No secrecy is required. The process is public and the outcome is still skewed — which is why this explanation beats a conspiracy for both accuracy and usefulness.

Then there is the layer conspiracy theory half-perceives: the informal one. Board seats, investor introductions, industry dinners and who gets warned before a decision becomes public.

Private networks including the order sit here. Their influence is real but distributed — an accumulation of introductions and advice, not a command structure. No member can instruct another, and the rules forbid using membership to exploit a fellow member.

If you want to understand an industry, read its annual reports, its regulator's decisions and its submissions to inquiries. That research will tell you more in an afternoon than years of theorising.

And if you want to be inside a network rather than outside one, join something that asks for contribution rather than promising shortcuts.