Just Kai frequently quotes three numbers:
- around 40 million people are in slavery today;
- of those people, around 7 million are making physical goods for sale;
- around 20% of cocoa is produced by children.
Where do these numbers come from? As forced and child labour are almost-universally illegal, the numbers come from investigations and NGOs rather than official government statistics. In addition, except for the first, they are numbers we have derived from published statistics. Here’s how that was done.