A quick history lesson from NPR on how Quakers invented the price tag

NPR’s Planet Money published this charming video about the history of charging fair prices to consumers:

For most of human history, you had to haggle over prices before you could buy something. The Quakers were among the first people to commit to fixed prices — and they did it because they thought it was more fair. Turned out, it was also good business. This is the strange story of the long journey of that little piece of paper.