Friggonomics

Here is a data base on legal Nevada prostitutes.

The average rate is about $400 an hour, and the average customer believes he is getting a woman 31 years of age.  I won't summarize the rest, but there is a table of correlation coefficients for many variables.

Here is a concluding excerpt:

I have been informed of many instances of guys walking into a legal Nevada brothel, picking a lady and going back to her room to negotiate, and then quoting to her the averages I found in previous surveys. This is not good negotiating strategy, a topic I usually prefer not to give advice on.

Thanks to the excellent Cynical-C blog for the pointer; they swear they found the data by accident.  And here is a good piece on whether Heidi Fleiss's brothel for women will succeed, I predict no.