Porn Up, Rape Down by ANTHONY D’AMATO (Northwestern University – School of Law/Northwestern Public Law Research Paper)
Abstract: The incidence of rape in the United States has declined 85% in the past 25 years while access to pornography has become freely available to teenagers and adults. The Nixon and Reagan Commissions tried to show that exposure to pornographic materials produced social violence. The reverse may be true: that pornography has reduced social violence.
http://papers.ssrn.com/sol3/papers.cfm?abstract_id=913013