Political science, occasionally called politology, is a discipline of social science which deals with systems of governance, and the analysis of political activities, political thoughts, associated constitutions and political behavior. Political science is generally divided into distinct sub-disciplines, namely domestic politics and government, comparative politics (including area studies), international relations, political theory, political economy, political methodology, public administration, public policy. Furthermore, political science is related to, and draws upon, the fields of economics, law, sociology, history, philosophy, human geography, journalism, political anthropology, and social policy.