Economists often like startling theorems, results which seem to run counter to conventional wisdom.

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.

The median family income in the U.S. is lower than it was a quarter-century ago, and if people don't have income, they can't consume, and you can't have a strong economy. There's significant risk - actually it's no longer a risk - a significant likelihood of a marked slowdown not only in China, but also in a lot of other countries like Brazil, which is in recession. All of the other countries that depend on commodities, including Canada, are facing difficulties. So it's hard to see a story of a strong U.S. economy.

Global demand for dollars has supplanted demand for manufactured goods and services, resulting in multilateral trade deficits and loss of jobs at home.

I trace the inequality to a particular set of decisions that we took when we lowered the tax rate from 91% down to very low levels at the top, where we stripped away regulations. So the result of that was not a more dynamic economy, but a more unequal society. We tried the experiment of trickle-down. A third of a century later, we can say fairly definitively that it was a failure.

For that to happen, growth has to be very strong. To get back to normalcy, we will have to have extended growth of more than 3 percent. That's not in the cards.

Temporary nationalization of the banks that are in very bad shape would mean basically that the government is the temporary owner. I always believe that the government should focus on its comparative advantages, and banking is not one of them. It should, therefore, if it nationalizes banks, sell them back to the private sector.