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Entry into Australia's supermarket sector isn't so simple, according to retail expert Lisa Asher from the University of Sydney.
Aldi entered the market in 2001 and it had taken the company 24 years to get to 600 stores, which was a market share of slightly less than 10 per cent, she said.
"So this idea that it's easy to get market share when Aldi is one of the most innovative grocery retailing models that we have at the moment in the world," she said.
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Ms Asher [highlighted] that divesture powers existed in places such as the United Kingdom and United States.
Without these powers in Australia, she said retailers such as Coles and Woolworths had minimal competition.
In 2000, Franklins had about 12.3 per cent of Australia's market share.
Now, no single retailer outside of Coles and Woolworths has more than 8 per cent.
"There are no disincentives for entrenching market concentration and dominance," she said.
The focus should be less on large foreign chains entering Australia's grocery market, and more about empowering local entrepreneurship, she said.