Um... I agree the word "free" is misleading but once you're in a legal system that condones slavery then of course it would be a free market. I'm having a hard time imagining the slave trade arising without a market much more free than the people forced through it.
Markets are amoral. That's why we shouldn't rely on them to solve social problems.
Markets are amoral. That's why we shouldn't rely on them to solve social problems.