Are things only worth what people are willing to pay for them? Tim Harford explains why a method of buying and selling that originated in ancient times has endured to the present day, and is now underpinning the success of some of the internet's most powerful brands.
📆 2020-02-03 03:00 / ⌛ 00:09:51
📆 2020-01-27 03:00 / ⌛ 00:10:01
📆 2020-01-20 03:00 / ⌛ 00:09:46
📆 2020-01-13 03:00 / ⌛ 00:09:58
📆 2020-01-06 03:00 / ⌛ 00:09:51