Opposition Leader Peter Dutton has accused Coles and Woolworths of stifling competition by sitting on undeveloped land near their stores and vowed measures to protect consumers from higher prices.
The Coalition is working on a plan to forcibly break up the supermarket giants if they abuse their market power and Mr Dutton said the Morrison government had brought down power bills via “big stick” laws that threatened to break up electricity retailers, signalling a similar approach may be possible for supermarkets.