Examining the efforts of leaders in American child support, this book explores the topic of policy innovation over a 100-year period. It tracks the evolution of multiple sets of political entrepreneurs as they grapple with the child support problem: charity workers with local law enforcement in the 19th century; social workers through the 1960s; conservatives during the 1970s; women's groups and women legislators in the 1980s; and fathers' rights groups in the 1990s and beyond. Jocelyn Elise Crowley employs methodological tools from both political science and economics to highlight key stages in the innovation process.