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

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.

In the early 1990s, there was a debate among economists over shock therapy versus a gradualism strategy for Russia. The people in Russia who believed in shock therapy were Bolsheviks a few people at the top that rammed it down everybody's throat. They viewed the democratic process as a real impediment to reform.

You can't overestimate what happens when you encourage regulators to believe that the goal of regulation is not to regulate.

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.

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.

Active learning is always involved with interaction between teachers and students and Socratic methods and that's gonna continue.