Catherine McGrath: Westpac CEO on the bank's profit growing by 10 percent - Heather du Plessis-Allan Drive

Westpac New Zealand’s profits are continuing to rise, as it makes more money from existing customers, rather than materially growing its business.

The Australian-owned bank’s New Zealand division reported a net profit of $525 million in the six months to March - a 10 percent rise from the same period last year.

Westpac CEO Catherine McGrath explains why New Zealand's margins have gone up - despite Australia taking a dip. 

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