The New Zealand dollar fell after the greenback strengthened as investor optimism was boosted by a gain in United States retail sales and higher oil prices.
The kiwi slid to 66.18 US cents at 8am in Wellington, from 66.29 cents at the New York close and 66.84 cents at 5pm on Friday. The trade-weighted index declined to 72.03 from 72.56 on Friday.
The US dollar index, which measures the greenback against a basket of currencies, advanced after a report showed US retail sales increased 0.2 percent in January and December sales were revised higher. That boosted optimism about US consumer sentiment, and stoked speculation that the Federal Reserve could hike interest rates this year.
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