In a globally integrated economy, the biggest challenge is to make sure there is adequate global aggregate demand, achieved through spending, when countries like China feel they must save high levels of dollar reserves to protect against international currency volatility.

American inequality didn't just happen. It was created.

We noted the psychological problems facing many of the returning from Iraq veterans - of the 700,000 returning veterans, more than a 100,000 have been diagnosed with problems, but the numbers are likely to get worse, as those with multiple deployments return. We should have valued the loss of life as a result of these suicides, using the same procedures we used for the loss of those who died in combat.

Temporary nationalization of the banks that are in very bad shape would mean basically that the government is the temporary owner. I always believe that the government should focus on its comparative advantages, and banking is not one of them. It should, therefore, if it nationalizes banks, sell them back to the private sector.

I think what they've been doing is largely almost in firefighting mode without a good conceptual framework - either at the micro or the macro level. Micro, you would ask: "What kind of financial or banking system do we want?" Macro, you would say: "What are the underlying problems in the structure of our economy?"

As a rich country, we can, in some sense, "afford" the war. But spending money on the war means that we are not spending money on other things that we could have spent the money on.

The protesters have called into question whether there is a real democracy. Real democracy is more than the right to vote once every two or four years. The choices have to be meaningful. But increasingly, and especially in the US, it seems that the political system is more akin to "one dollar one vote" than to "one person one vote". Rather than correcting the market failures, the political system was reinforcing them.