PSR programs and activities are organized through three units: the Domestic Politics Unit (DPU), the Strategic Analysis Unit (SAU), and the Survey Research Unit (SRU). These units conduct and organize four types of activities: research and policy analysis, empirical surveys and public opinion polls, task forces and study groups, and meetings and conferences. The units focus on current public policy issues with a special reliance on empirical research as the tool to advance scholarship and understanding.