There's been some mention before about drug-funded shopping malls and other real estate developments in Colombia. I came across the link below that might be interesting to some of you. The article is kind of long (and it's just the summary of a large study) but the main point is that in recent years the drug business has not been more than 2 or 3% of the total economy, down from 5-7% in the late 80's to early 90's. And the author has a sense of humor - he lists beauty queens as one of the articles of conspicuous consumption...
http://www.undcp.org/colombia/rocha.html