The TED tak “ The freakonomics of crack dealing” might interest you.

> What I'm going to tell you today is that, in fact, based on 10 years of research, a unique opportunity to go inside a gang -- to see the actual books, the financial records of the gang -- that the answer turns out not to be that being in the gang was a glamorous life. But I think, more realistically, that being in a gang -- selling drugs for a gang -- is perhaps the worst job in all of America. And that's what I'd like to convince you of today.

https://www.ted.com/talks/steven_levitt_the_freakonomics_of_...