It is hard to estimate the exact size of economic activity taking place outside of the tax system. Estimates of the size of New Zealand's 'hidden' or 'black' economy vary but are anywhere between $10 billion and $20 billion. That amounts to a lot of lost tax revenue — more than enough to offset the amount National raised selling our assets.
in favour of international cooperation with other countries, for example mentions the need for aid to developing countries, or global governance