However, I'm not so sure it's a good model for the world or for the US market, because it's actually quite selfish. NZ is able to get drugs cheap because the US consumers are paying extremely high prices which cover the development costs. If everyone was buying drugs at the price we pay in NZ, there would be far less incentive to develop new drugs.
With NZ being such a small market we can get away with it without having any impact on the development of drugs, but we're lucky that the Americans are picking up the development tab for us and we would have a problem if they stopped doing that.