Analysis : If Australia wants to lower migration it needs more productivity. By Alan Kohler, ABC News

Everyone now understands that growing the economy only by increasing the number of people, while individuals feel worse off, is a recipe for unhappiness and dissent.

Aggregate growth is a statistic, but individual decline is a vote. The political solution? Fewer people.

That's because those in focus groups and answering polling questions complain about how many people they can see, rather than the reason they are worse off: weak productivity, which they can't see.

Does Canada have the answer?

Analysis : If Australia wants to lower migration it needs more productivity. By Alan Kohler, ABC News