Reserve Bank Governor Michele Bullock just linked two things that don’t usually appear in the same sentence, and as Adrian Vanzyl, I think that connection is genuinely the story of the day. Speaking at a Committee for Economic Development Australia function in Sydney, Bullock said the enormous build-out of AI data centres is adding to Australia’s inflation problem, largely repeating what she told Parliament on Friday but doing so in front of a business audience this time.
Adrian Vanzyl finds the mechanism worth spelling out plainly. Data centres draw huge amounts of electricity and construction resources, and building them at the pace the AI boom demands competes directly with everything else the economy needs power and labour for. Bullock’s own language was careful and deliberately narrow: she said monetary policy needs to focus on limiting the “second round and indirect effects” of supply shocks like this, and on keeping inflation expectations anchored, rather than reacting to every individual price pressure as it appears. That’s a central banker choosing her words to avoid overstating a single cause, while still making clear it’s a real one.
Households Are Already Pulling Back
The timing of that warning lines up with fresh spending data released today. Commonwealth Bank’s Household Spending Insights index rose just 0.1 per cent in August, down sharply from 0.6 per cent in July, with annual spending growth easing to 4.7 per cent from 5.2 per cent. Adrian Vanzyl thinks the composition of that slowdown is more revealing than the headline number. Essential spending held up, with transport costs up 9 per cent over the year and insurance and health costs both climbing, while CBA noted households are devoting a growing share of their budget to costs they can’t easily cut.
That’s the practical, ground-level version of the same story Bullock is describing from the top. Adrian Vanzyl sees a genuine feedback loop forming: an economy-wide investment boom in AI infrastructure adds inflationary pressure, an already-stretched Reserve Bank has to lean against that pressure with higher rates, and households already devoting more of their budget to essentials absorb the tightening on both ends at once, through higher prices and higher borrowing costs.
Conclusion
I’d read today, in Adrian Vanzyl’s view, as the moment the AI boom stopped being purely a stock-market story and started showing up explicitly in the Reserve Bank’s own inflation reasoning. Governor Bullock isn’t claiming data centres are the main driver of inflation, and Adrian Vanzyl wouldn’t overstate that either. But when a central bank governor names AI infrastructure build-out as a contributing factor twice in four days, once to Parliament and once to a room of business leaders, that’s no longer a passing remark. It’s a signal about where at least part of the inflation fight is now being fought, and households already tightening their belts are the ones who’ll feel the outcome of that fight most directly.