Australians should be angry about Coles’ latest billion-dollar profit. But don’t blame the cost of living

‘Coles and Woolworths are making big gains at the expense of their workers.’ Photograph: Martin Keep/Getty Images for Coles

The latest massive $1.1bn profit reported by Coles will doubtless produce a new round of hand-wringing about the “cost of living”. Governments will produce initiatives aimed at capping or reducing prices. Pundits will use a variety of measures to argue as to whether such measures are inflationary. Then there will be debates about whether splitting up Coles and Woolworths into smaller chains would enhance competition. And the Reserve Bank will be encouraged to push even harder to return inflation to its target range.

But these responses, focused on the cost of goods, miss the point. Coles and Woolworths have increased their margins, yes – but prices for groceries have increased broadly in line with other goods. The real driver of supermarket profits is their ability to drive down the prices they pay to suppliers.