" We, the undersigned, call your attention to the attached report by Professor Jeffrey A. Miron, The Budgetary Implications of Marijuana Prohibition. The report shows that marijuana legalization -- replacing prohibition with a system of taxation and regulation -- would save $7.7 billion per year in state and federal expenditures on prohibition enforcement and produce tax revenues of at least $2.4 billion annually if marijuana were taxed like most consumer goods. If, however, marijuana were taxed similarly to alcohol or tobacco, it might generate as much as $6.2 billion annually."
http://www.prohibitioncosts.org/endorsers.html