Explaining socioeconomic disparities in electoral participation: The role of health in the SES-voting relationship

Abstract

The substantial gap in electoral participation between upper and lower socioeconomic status (SES) groups has long been a vexing problem for modern democracies and one that demands explanation. Following separate bodies of scholarship that suggest (1) socioeconomic disadvantage diminishes health and (2) poor health demobilizes eligible voters, this paper proposes that health serves as a pathway through which social inequality manifests in disparities in electoral participation. This paper tests this hypothesis by analyzing U.S. presidential election data, in which structural equation modeling was used to decompose the association between SES and turnout, through health. Results show that health mediates approximately 20% of the relationship between SES and electoral participation. These findings imply a political explanation for the endurance of population health disparities; they may self-sustain by disproportionately limiting the political voice of the disadvantaged, for whom more egalitarian social and health policy would be most beneficial.