The economy surged ahead in the third quarter due to higher consumer spending, tourism and rebuilding after a devastating earthquake.
New Zealand's central bank cut its benchmark interest rate to a record low of 1.75 percent on Thursday, the third easing this year.
Investors shifted their focus away from hawkish remarks on interest rates by Fed officials and towards Friday's Jackson Hole meeting.
New Zealand's central bank said its current interest rate track involves further cuts to balance risks while generating an increase in CPI inflation.
New Zealand's interest rate differential compared with the rest of the world makes Kiwi bonds attractive, notes Jeremy Sullivan of Hamilton Hindin Greene.
Back in March, the Fed did say it could not tighten if the greenback strengthens too much, says Nordea Markets' Jesper Bargmann.
The price action in the NZD/USD suggest that RBNZ did not sufficiently meet the market's dovish expectations, says Citi's Todd Elmer.
The RBNZ needed to consider how much lower can it cut record-low cash rates in order to derive a weaker kiwi, says UOB's Alvin Liew.
The RBNZ has to balance both the growing housing bubble and the dairy sector, which is under pressure, explains UBS' Wayne Gordon.
There has been a revival of U.S. oil production which has again fueled fears of an over-supply, says Jefferies's Sean Darby.
New Zealand's central bank cut benchmark interest rate by 25bps to 2.0 percent and indicated at least one more rate cut would be needed.
The kiwi strengthening against the dollar is partly due to speculation of a deeper rate cut by the RBNZ, explains ASB Bank's Nick Tuffley.
HSBC's Paul Bloxham says the RBNZ cut rates because inflation is still well below target, even though New Zealand's growth story is still quite good.
Demand for the Kiwi dollar is strong because of the growth and yield that New Zealand offers, says CIBC's Patrick Bennett.
The Kiwi-Aussie dollar cross is one way to play the currency markets, says Saxo Capital Markets' Kay Van-Petersen.
The dollar fell after a six-week high against the yen, while the Euro showed little change after ECB keeps policy unchanged.
UBS WM's Wayne Gordon says the Fed might hike rates as soon as December because of improving U.S. data, which might lead to an unwinding of carry trades.
NAB's Ray Attrill explains why the Korean won did not seem to react much to the Bank of Korea's rate cut, while the Kiwi jumped on RBNZ's rate hold.
The RBNZ said on Thursday an independent investigation confirmed its March decision to cut rates was leaked by a journalist before the official release.
New Zealand's central bank cut interest rates to match a record low, but the kiwi dollar climbed on expectations the easing cycle may be ending.