Public policy is formulated to address problems that jeopardize societal well-being. Once a policy problem is identified, the objectives of the policy are established to reduce the problem in a way that is acceptable to both policy administrators and those affected. There are many forces that influence public policy formulation, including societal groups and state-centered actors, and policies go through stages from agenda-setting to implementation and evaluation. Successful policies require adequate resources and personnel as well as cultural acceptance to achieve their objectives through implementation.