This paper reports the results of a study of the economic content and the decision-making process of the recently adopted U.S. 1990 agricultural and food policy. It is the most comprehensive policy of its type. It represents the broadest participation of private individuals and interests groups, and will affect the economy of not only the United States, but also the economies of trading countries around the world. The study examines the economic conditions leading up to the policy, a theoretical foundation of public policy determinants, the role of economic analysis in that policy development, the provisions of the Act compared with the previous policy, and its extensive economic implications. Results of the study support features of a conceptual framework for economic policy of a participatory government. The study also reveals the unique policy process of the United States and the provisions of its price and income policy for the food and agricultural sector. Finally, this article identifies the interrelations between the 1990 policy and on-going GATT negotiations, the emerging importance of environmental and food quality issues in agricultural and food policy, and sources for further study of this Act.