We might just have a semantic disagreement, but Wikipedia supports the definition that I'm using [1]: > A black market or underground economy is the market in

We might just have a semantic disagreement, but Wikipedia supports the definition that I'm using [1]: > A black market or underground economy is the market in which goods or services are traded illegally. The key distinction of a black market trade is that the transaction itself is illegal. 1 http://en.wikipedia.org/wiki/Black_market http://en.wikipedia.org/wiki/Black_market