With both in play, it certainly indicates that a straight "End Demand" approach, which only addresses pull factors but not push factors, could expect to only have a limited impact, and believing that forcing sex underground will make people not pay for it is incredibly naive.
Interestingly, the research also suggests that one of the "pull factors" for men who buy sex is because it is illicit and they are attracted to the idea of getting away with it.
A controversial installation at Glasgow's Gallery of Modern Art is currently publicising entries from last year's 'Invisible Men' blog, which took selected quotes from escort review sites.
The online kickback from sex workers who objected to the political content of the display followed almost immediately.
The Sex, Safety and Security study has been polling buyers of sex and makes fascinating reading.
The study, which initially conducted 855 surveys and 24 in-depth interviews in 2009, is being updated to cover another 1251 surveys and 18 in-depth interviews with the results due to be published later this year.
A paper from 2000 put the percentage of men in Australia who had ever purchased sex at 15 per cent, with about one in 50 overall having done so in the last year.
There is a question of how accurate such figures are, though, because of the stigma attached to paying for it - with some estimates putting the real number closer to 20 per cent paying for sex at least once.As well as aiming to demonstrate trends over time, the survey also examines topics like attitudes towards the law, the age at which subjects started buying sex, and their other sexual relationships.Chris Atchison of the University of Victoria designed both studies.As with so many things, whether or not you actually broach the subject should be the topic of much thought.Like with the question of your number of ex-sex partners… Perhaps the best policy is, if the outcome would completely change the way you think of someone, then perhaps it's better left unasked. It does however signal a move in this country, following Rhoda Grant's failed bill in the Scottish parliament last year, to continue pushing the criminalisation of punters. Most people on both sides of the issue agree that yes, they do.What this has helped achieve is an incredible 67 per cent conviction rate.