Perspectives on Political Behaviour: The Sociological vs. Economic Approach

Political behaviour constitutes a complex field of inquiry situated at the intersection of political science, sociology, and economics. This paper examines two influential yet distinct approaches to its explanation: the sociological approach to politics and the economic approach associated primarily with rational choice and public choice theory. The sociological perspective interprets political behaviour as socially and historically embedded, emphasising the role of social class, group membership, political socialisation, ideology, identity, institutional structures, and relations of power in shaping political preferences and action. By contrast, the economic approach generally begins from the individual actor and explains political behaviour through preferences, incentives, costs and benefits, and strategic interaction under institutional constraints. The comparison reveals a fundamental difference in their direction of explanation. While sociological approaches devote particular attention to the social formation of political preferences and identities, economic models tend to examine how individuals behave once preferences are treated as given. Through a comparative analysis of these perspectives, the paper explores their respective explanatory strengths and limitations in the study of voters, political parties, politicians, and collective decision-making. Rather than treating the two traditions as necessarily incompatible, it argues that they illuminate different dimensions of political life. The sociological approach provides a richer account of the social and historical foundations of political behaviour, whereas the economic approach offers a parsimonious framework for analysing incentives, strategic choices, and institutional constraints. Their comparison therefore provides a useful basis for assessing both the contribution and the limitations of the extension of economic reasoning into the study of politics.