Greed is good to most economists. It's greed that makes people work harder, be more productive and helps the economy grow.

We love a world in which the people in the white hats get rewarded and the people in the black hats pay the price. And that I have to say doesn't happen very often, particularly in a very complex economy. We're in a time of panic where people have lost trust in what the banks are doing, what the investment firms are doing - lost trust beyond a level of reasonableness, to be honest. And, it's got to be stopped.

Greed is good to most economists. It's greed that makes people work harder, be more productive and helps the economy grow.

The role of government is to create responsible greed to keep boundaries around what people do.