Both depend on commodity exports, both trade heavily within the Asia-Pacific region and there is (almost) free movement in trade, labour and capital between the two countries.

ECONOMIST: Should Australia and New Zealand form a currency union?

"Liberals believe in open societies and in an open, global economy and with the principles of free trade and free movement of goods, capital, services and people, " he said.

BBC: Immigration debate

The World Trade Organisation should work towards the free movement of goods, capital and workers.

ECONOMIST: Letters | The