The overwhelming market dominance of the Coles-Woolworths duopoly is coming under fresh scrutiny as a milk discount war rages in South Australia.
Many consumers are no doubt pleased at being able to purchase milk from supermarkets for as little as $1 per litre.
But how many of them are aware that, upon lowering the price of milk, Coles simultaneously raised the price of around 1,000 other products? Or that Woolies raised the price of around 1,500 other products? (F…
