I tell my children that a man like Bill Gates has a personal fortune of $100 billion. They can't even comprehend that. Then I explain that he has more money than some countries.

It is vital for Russia to normalize relations with the rest of the world. You shouldn't isolate your economy

Workers are not being exploited. But if their share of growth doesn't increase, this could be a potential cause of social tension worldwide.

We all use cash in our everyday life, but we don't use hundred-dollar bills. We're not using 500-euro notes. And yet these account for mountains of cash out there. I think they're being used in tax evasion and by criminals of all types.

The problem - at least in the United States - is not that people can't find jobs. The problem is that they're no longer finding jobs that provide them with dignity and decent social status.

Cash is very easy to hide. It's easy to hoard. It's easy to move, especially these large bills.

The assertion that everyone benefits simultaneously from free trade is simply incorrect.