Whenever you have dynamic interactions between 300 million people and the American economy acting in really complex ways, that introduces a degree of almost chaos theory to the system, in a literal sense.

So the American economy needs the world, and the world needs the American economy.

The public is even more pessimistic about the economy than even the most bearish economists are.

History has demonstrated time and again the inherent resilience and recuperative powers of the American economy.

Sydney is acting as a major drag on the NSW economy and the weak update on major renovations is just one among a plethora of indicators pointing to NSW having slipped behind the pack.

What we see today is an American economy that has boomed because of policies and developments of the 1950s and '60s: the interstate-highway system, massive funding for science and technology, a public-education system that was the envy of the world and generous immigration policies.