Ogilvy's first APAC Believability Index finds 92% of Australians quietly disengage from a brand when they stop believing it, with 58% stopping their spend entirely. The exit is silent, so you get no warning. Belief is built on proof, not claims.
The customers who post a one star review are doing you a favour. The ones who matter are the ones who leave without a word.
Australian consumers do not send you an angry email when they stop believing you. They just leave. Quietly. Ogilvy's first APAC Believability Index, run with YouGov across more than 7,000 people in seven markets, puts a number on the exit. When belief in a brand breaks, 92% of Australians disengage without telling you why.
That silence is the dangerous part. You get no complaint to respond to, no review to reply to, no signal in your inbox. The revenue just softens and you spend months guessing at the cause. In Australia, when belief goes, 58% stop buying, 37% quietly switch to a competitor and 22% avoid your content and say nothing.
Believability is not the same as awareness. Plenty of brands are known and not believed. The study frames belief as the thing sitting between a claim and a purchase. Make a promise the customer does not buy, and the gap does the damage. Ogilvy called the report The Power of Proof for a reason. Proof closes the gap. Assertion widens it.
Why it matters
Most Australian marketing budgets are pointed at the top of the funnel, buying attention. Belief is a different job. It is built by what you can show, not what you can say. In a market already squeezed by cost of living, a customer who stops believing you is not a lost sale this month. It is a lost relationship, and you get no warning before it goes.
Share of Australian consumers who quietly disengage from a brand when they stop believing it, telling the brand nothing. Source: Ogilvy APAC Believability Index 2026.
It also reframes trust as a commercial metric, not a soft one. 58% pulling their spend is a revenue line, not a sentiment score.
What to do about it
The brands that win the next few years will not be the loudest. They will be the ones a customer can believe without having to take a leap.