The fact that the government had to put up hundreds of billions of dollars to Citibank in guarantees was a public declaration that Citibank was a mess. Making Citibank go through financial restructuring would not have conveyed any more different information. So it's very hard to see why it would have had that kind of a panic if it were done well.

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.

I think that for the developing world there are many versions of capitalism, and countries have to choose one that's appropriate.

It is trust, more than money, that makes the world go round.

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.

For the United States, our political system is clearly distorted. We have gerrymandering so that there is a situation where a million more voters who vote for Democrats, yet the House is controlled by the Republicans. So clearly, the way our Congress operates is important. The other big issue is the influence of money in politics. It's not only campaign contributions. People like Trump - either you become very dependent on your benefactors or you are very rich.

The crisis was 2008, in 2015 - almost eight years later and the gap between where we would have been and where we are is huge and not closing. The implied unemployment rate is very high, labour force participation is very low, and the increase in wages in the second quarter was the lowest in 25 years. Before this turmoil, the U.S. economy was in better shape than Europe or Canada, but not strong.