Much larger economies than ours try and keep their exchange rate at a advantageous level. As pointed out in Quantitative Easing and Swiss Roulette there can be huge costs and risks.
And we don’t have the size or resources to compete.
New Zealand trying to compete in exchange rate manipulation is akin to the minnow humping the shark.

Monique Angel (@Orcs2Elves)
/ October 9, 2012Ha ha. Perfect analogy
Quentin Todd
/ October 10, 2012True, it’s a great analogy. And what’s wrong with printing off more money?