Our banks are making some big profits - and they are the next organization in the Commerce Commission's headlights.

With a new preliminary report from the Commerce Commission highlighting the high profit of New Zealand banks compared to those overseas, the watchdog is launching an investigation.

Along with the high profit, it will look at how easy it is for people to change banks and how easy it is for new banks to enter the market

Financial markets expert Andrew Body joined Mike Hosking to discuss the developments.

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