Economic Sanctions: Agencies Assess Impacts on Targets, and Studies Suggest Several Factors Contribute to Sanctions' Effectiveness, Report to Congressional Requesters [open pdf - 787KB]
From the GAO [Government Accountability Office] Highlights: "GAO was asked to review issues related to the implementation and effectiveness of economic sanctions. Among other things, this report (1) examines the extent to which U.S. agencies assess the effectiveness of sanctions, and (2) identifies factors that have been shown by publicly available studies to contribute to the effectiveness of economic sanctions. GAO reviewed documents and interviewed officials at Treasury, State, and Commerce and in the U.S. Intelligence Community. GAO also reviewed academic studies that used rigorous statistical methods to analyze the impact and effectiveness of economic sanctions across many sanctions programs."
Government Accountability Office: http://www.gao.gov/