The Government's confident it can bring an end to New Zealand's grocery duopoly. 

It's laying out plans to challenge the incumbents, Foodstuffs and Woolworths, and remove regulations discouraging competition. 

It wants to pave the way for a new player to enter the supermarket sector. 

Economic Growth Minister Nicola Willis told Mike Hosking there has been competition in the past. 

She says the country let the supermarkets merge together and turn into two mega entities. 

LISTEN ABOVE