Negative effects on the economy were covered up with a flood of liquidity from the Fed. That,plus lax regulation, led to a housing bubble, a consumption boom - but we were living on borrowed money. It was inevitable that there would be a day of reckoning, and it has now come. We will be paying the costs "with interest".

I knew that discrimination existed, even though there were many individuals who were not prejudiced.

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.

Unfettered market American-style capitalism doesn't work. Developing countries can't afford that kind of luxury. They just can't afford it. Period. If there's a mistake, they can't afford to put out $2 trillion.

When you're facing the threat of recession, you need to have an expansionary monetary and fiscal policy. Pre-Keynesian, Hooverite views are dead everywhere except on 19th Street in Washington.

Wall Street banks have used the same tactic that Bush used in the war on terror - fear - and they've basically said that if you don't do what we tell you, the sky will fall. If you don't do what we tell you, it will be the end of capitalism as we know it. The failure of Lehman Brothers lent some credence to those fears.

As I noted in my Nobel lecture, an early insight in my work on the economics of information concerned the problem of appropriability - the difficulty that those who pay for information have in getting returns.