Political Studies consists of four sub-fields: Political Philosophy examines the history of political concepts such as authority, law, freedom, rights, equality, justice, and the state; Comparative Politics develops criteria for comparing the domestic politics and policies of countries throughout the world, including the U.S.A.; Global Politics examines relationships between and among nation-states,? as well as the emergence of transnational forces that increasingly give shape to a global political system; U.S. Politics examines politics and public policy in the U.S.A., including Latino, African American and Asian American politics.