The federal government is reviewing the supermarket code of conduct over concerns about the gap between food prices charged by big supermarkets and those paid to farmers. 


While a separate senate inquiry will examine alleged price gouging by Coles and Woolworths in coming months.


Supermarkets have denied accusations of profiteering and say they’re experiencing economy-wide inflationary pressures. 


Today, business columnist Elizabeth Knight what an inquiry may be able to tell us.

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