Public policy can be generally defined as the course of action or inaction taken by a governmental entities with regard to a particular issue or set of issues. Other scholars define it as a system of "courses of action, regulatory measures, laws, and funding priorities concerning a given topic promulgated by a governmental entity or its representatives. In the United States, this concept refers not only to the end result of policies, but more broadly to the decision-making and analysis of governmental decisions. Public policy is also considered an academic discipline, as it is studied by professors and students at public policy schools of major universities throughout the country. The professional association of public policy practitioners, researchers, scholars, and students is the Association for Public Policy Analysis and Management.
Public policy is a complex and multifaceted process that involves the interplay of numerous individuals and interest groups competing and collaborating to influence policymakers to act in a particular way. These individuals and groups use a variety of tactics and tools to advance their aims, including advocating their positions publicly, attempting to educate supporters and opponents, and mobilizing allies on a particular issue.
In this context, advocacy can be defined as attempting to influence public policy through education, lobbying, or political pressure. Advocacy groups "often attempt to educate the general public as well as public policy makers
about what legislation is needed to address problems, and the funding required to provide services or conduct research. Although advocacy is viewed as unseemly by some in the professional and research community, it is clear that public policy priorities are influenced by advocacy. Sound research data can be used to educate the public as well as policy