Michael Shively is a senior associate at Abt Associates, a US-based public policy research firm. His work on human trafficking includes directing studies of victimization, perpetration, and system responses for the US Department of Justice, US Department of State, and private foundations. He is currently directing the development of a methodology for producing valid county-level estimates of human trafficking victim prevalence, and is a task leader on a study of federal processing of human trafficking cases from investigation and prosecution, through sentencing, incarceration, and community reentry. He recently completed a study of human traffickers, organizations, and facilitators that examined the structure and operations of criminal enterprises, and the motivations and risk mitigation strategies of individual traffickers. His prior research includes examining interventions designed to prevent and respond to commercial sex and sex trafficking in the United States and the Republic of Korea. He currently operates the DemandForum website, which documents prostitution and sex trafficking prevention interventions in more than 1,200 communities throughout the United States. Prior to his position at Abt, he served as deputy director of research for the Massachusetts Department of Correction; was on the faculty of the College of Criminal Justice at Northeastern University; and served on the Massachusetts Governor’s Commission on Criminal Justice Innovation, the Massachusetts Attorney General’s Human Trafficking Task Force, and the Regional Human Trafficking Workgroup at the Kennedy School of Government at Harvard University.