How Fair is Fair Trade?

The World Fair Trade Organization has declared this week to be World Fair Trade Week. "Fair trade" is quite the buzzword in commerce these days and is generally associated with agricultural products. Chief among those is coffee. The popularity of fair trade coffee is undeniable. But what even is "fair trade" and what does it entail? How "fair" is it? Or is it just a marketing gimmick? James Harrigan and Antony Davies get into the nitty-gritty of this and more in this week's episode of Words and Numbers.