International lending banks need to focus on areas where private investment doesn't go, such as infrastructure projects, education and poverty relief.

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.

In fact, for just about 1/6 of the cost of an Iraq War, we could have put the social security system on sound financial footings for the next 50 to 75 years. The problems can be managed - but not if we continue to fight this war for another 80 years.

It is unlikely that others would even demand their money back overnight, for doing so would lead to the value of the dollar plummeting; what they would get back with be worth little. But what we are already seeing is an erosion of confidence of the dollar, which is seeing the dollar fall in value.

We are helping the people that [George W.]Bush says are evil. Teheran couldn't be happier about the high oil prices resulting from the Iraq war.

Trump is particularly unfit to serve because he approaches these without any view of what the truth is, and he approaches these with an enormous amount of prejudice. You cannot begin saying we want to solve the problem when you have a mindset that is against the Mexicans, against Islamists.

In the U.S., you couldn't have job creation with interest rates of 30 or 40 percent. They had a philosophy that said job creation was automatic. I wish it were true. Just a short while after hearing, from the same preachers, sermons about how globalization and opening up capital markets would bring them unprecedented growth, workers were asked to listen to sermons about "bearing pain." Wages began falling 20 to 30 percent, and unemployment went up by a factor of two, three, four, or ten.