In 1978, a group of farmers in a Chinese village wrote a contract and hid it in the roof of a hut. They were afraid the document might get them executed. Instead, it transformed the Chinese economy.

How does the market for Super Bowl tickets work? And why did it collapse in 2015?

Billionaires, diplomats, thinkfluencers. This is the Davos everyone hears about. Today on the show, we take you to a different Davos.

Phosphate is a crucial element, for farming, and for life. And there aren't too many places to get it. What if it runs out?

Douglas Bruce had a bold vision for Colorado.

A biologist predicts a population bomb that will lead to global catastrophe. An economist sees a limitless future for mankind. The result is one of the most famous bets in economics.

The wild ginseng market has gone crazy. We go to a farm hidden in the Appalachian mountains to find out why.

Will 3-D printing make gun control impossible?

Why does it take days to send money electronically?

The Bitcoin market has gone crazy. And it's revealing something strange. A lot of people can't find their Bitcoins. We go looking for lost billions.