AI in action · Regulation
RBA Named Data-Centre Building as a Reason to Hike
Governor Michele Bullock cited strong data-centre investment among the domestic pressures behind the RBA's rise to 4.85% on November 3. AI infrastructure is now an inflation input for central banks.
When the Reserve Bank of Australia raised its cash rate by 25 basis points to 4.85% on Tuesday, November 3, Governor Michele Bullock was asked why a central bank would tighten into a slowing economy. Her answer, as reported by ABC News, was that the bank was not responding to oil prices directly but to domestic capacity pressures, and among them she named strong investment in data centres. It is one of the clearest statements yet from a central bank that building AI infrastructure is adding to inflation.
The mechanism is ordinary economics applied to an unusual boom. Data centres compete for the same electricians, construction crews, transformers, land and grid connections as housing and other projects, and they are built quickly and paid for by companies with very deep pockets. In an economy that the RBA itself describes as slowing, with falling house prices and rising unemployment, a sector that keeps bidding for scarce resources keeps some prices rising even as demand elsewhere cools.
The board's statement shows how finely balanced the call was. Six members voted to raise the rate and three to hold at 4.60%. Underlying inflation "remains broadly based" and is expected to stay above 3% for the coming year, the statement said, not reaching the top of the 2% to 3% target until late 2027, while unemployment is projected to rise by more than the August forecasts showed. Bullock said it was "probably a good point to just take stock".
Australia is not alone in connecting AI spending to monetary policy. In recent weeks the European Central Bank's chief economist, Philip Lane, said AI investment has become a driver of growth that is tightening credit, and the Bank of England's Financial Policy Committee has tracked the debt raised to build AI capacity. What the RBA added is the inflation side: a central bank explicitly counting data-centre demand among the reasons rates had to rise.
For investors this cuts in an unexpected direction. AI capital spending is usually discussed as a question of returns for the companies paying for it; Tuesday's decision shows it can also raise borrowing costs for everyone else in the economy where the building happens. As data-centre pipelines grow in other countries, the same question is likely to come up at other central banks' press conferences.
Sources: Reserve Bank of Australia — Statement by the Monetary Policy Board: Monetary Policy Decision (Nov 3, 2026); ABC News — RBA hikes cash rate to 18-year high of 4.85 per cent, live coverage (Nov 3, 2026); Bloomberg — RBA's Bullock Signals Policy Pause After Split Decision to Hike (Nov 3, 2026)