The science of politics is a science of human behavior. It concerns itself with a specific segment of the activities of humans—those which either take place in, or have a clearly discernible effect upon, the formal governmental machinery of the community. The characteristic feature of a political scientist, therefore, is not his unique theoretical framework but his special empirical interest. Two main consequences follow. First, it is trivially true, and widely recognized, that the major concepts of other behavior sciences are necessarily an integral part of the study of political behavior. Second, it is equally true that, within the social sciences, it is the responsibility of political science to develop those elements of behavior theory that are particularly relevant for the analysis of action in the sphere of politics.
Much of current empirical and theoretical work in political analysis is organized around the observation that many political data can be conceived to represent results of mechanisms for decision-making used (consciously or unconsciously) by individuals or collectivities. In a similar fashion, students of a significant number of other types of behavior have tended to formulate their problems within a decision-making framework. When one examines these apparently disparate branches of behavior theory, it is difficult to avoid the conclusion that there exist potentially fruitful parallelisms among such theories as those of consumer behavior, administrative behavior, price setting, legislative enactments, propaganda, learning, foreign affairs, and social control.