The real approach to take is to try reducing "food miles"... New Zealand beef may be great (it is and I've eaten plenty of it), but the distance it travels to get to the US or Europe is crazy when it can be produced locally. Irish people should eat Irish beef, Americans should eat US beef, Kiwis should eat New Zealand beef (I'm sure they do).
If a country can't produce a product, they should import from their closest neighbours.
This isn't a rant about self sufficiency’s nor is it meant to be against any countries exports or rights to export but something is wrong when your dinner has travelled longer in it's short lifespan than you have in a much longer one...
/Rant
Disclaimer: I am very guilty of buying long distanec because it's cheaper but then hey, I'm still a student...