Australia walked away with a series-winning victory over New Zealand at Christchurch's Hagley Oval.

The Aussies chased 279 to win before tea on the fourth day to take the series 2-nil.

Cricket commentator Andrew Alderson says the Black Caps 'choked' under the pressure of the series, to the benefit of Australia.

"The Australians are so confident and so used to being able to deal with level of pressure. And I don't think New Zealand quite had what it took in those circumstances."

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