If you didn't have employers able to pay off the books and off the record safely in cash, you wouldn't have illegal immigration on nearly the scale that we do.

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.

Unbridled capitalism in the United States can't be sustained socially. It leads to tensions.

Why are oil prices so low? First, energy consumption growth rates in developing markets have decreased. This is particularly noticeable in China. Second, new technologies are being developed and the shale gas revolution in the USA has taken place

Today, chess programs have become so good that even grandmasters sometimes struggle to understand the logic behind some of their moves.

Russia depends on natural resources way too much. Russian economy is not diversified enough

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