A game-theoretic framework unifies the revealed preference approach to government objectives· and the policy behavioral equation methodology. Public policies are the equilibrium outcome of a cooperative game among interest groups and the policy maker. This study stresses the interdependencebetween policies and players' bargaining strength, and derives their comparative statics with respect to a changing economic environment. ·rt provides a specification of behavioral equations consistent with the underlying bargaining process. An analysis of the political economy of food and agricultural price policies in Senegal illustrates the proposed framework.