The Commerce Commission's making moves to level the playing field in the grocery sector.  

It's found the big supermarket players are shovelling in billions of dollars a year through supplier charges and promotional pricing, which largely isn't reaching consumers.  

It's proposed a simplified grocery code that limits the range of payments supermarkets can charge suppliers.  

Grocery Commissioner Pierre van Heerden told Mike Hosking it's about taking away all the carve-outs.  

He says smaller suppliers currently have difficulty pushing back against large supermarkets because of the power imbalance. 

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