Tycoons - The power of billionaires

Oligarchs: They are the richest men in Russia, rule corporate empires and live in luxury. They owe their wealth to the chaos of the disintegrating USSR in the 1990s.

The Rise of China's Billionaires tells the story of a country that has grown from a poverty-stricken place in the 1980s to become the world's second largest economy.

Elon Musk, Jeff Bezos, Bill Gates – there are fascinating success stories behind these names. The super-rich in the USA are changing the modern world with technological innovation.