The only thing that keeps the NZ economy afloat is the ability to grow grass for animals to eat. Because of this we are not required to stuff our animals-to-be-slaughtered with expensive grain as they do in Europe and America.
Consequently we can ship our product to the other side of the world and place it on the shelf at a lower price than the locals. And WITHOUT ANY government subsidies. It's actually a kind of miracle. Our government has found it hard to close free-trade deals with America and Russia however because their farmers are scared of us!
Also, the energy used to grow and send the european/american grain to the EU/USA animals means that those regions "food miles" statistics are much worse than New Zealand's.
And our largest dairy producer has just announced free milk for every school child in the country, every day, beginning from next year.