Labour will look at beefing up the Commerce Commission's powers to break up dominant firms, if re-elected. 

Commerce and Consumer Affairs spokesperson Duncan Webb says the Commerce Act doesn’t stop a business developing a monopoly position inch-by-inch. 

He says New Zealand needs to be a little more vigilant than other countries as the ability to dominate is high.  

Webb told Mike Hosking that anything that's causing real losses to consumers needs to be looked at. 

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