Political Identity and Family Formation: A Sequence Analysis of the NLSY79

• In Event: Politics and Family Life in the 21st Century

Abstract

Political identity has become a central axis of social sorting in the United States, shaping relationship markets and norms around marriage and childbearing. This study examines whether partisan identity is associated with observed family formation trajectories across adulthood, rather than stated expectations alone. Using the National Longitudinal Survey of Youth 1979, monthly partnership and parenthood histories from ages 15 to 50 are reconstructed and grouped into three trajectory types: the Two-Child Marriage Norm, the High-Parity Marriage Norm, and the Delayed/Nonmarital Path. Preliminary results show systematic differences by political affiliation. Democrats and Independents display more heterogeneous and complex pathways, whereas Republicans follow more concentrated trajectories consistent with earlier and more standardized transitions into marriage and parenthood. Cluster membership also differs: compared with Democrats and Independents, Republicans are more likely to belong to the High-Parity Marriage Norm cluster and less likely to belong to the Delayed/Nonmarital Path cluster, while there are no meaningful political differences for the Two-Child Marriage Norm. These findings link political identity to lived family formation patterns. Although they do not establish causality, they inform debates about how partisan-aligned norms may coincide with different family scripts. Ongoing analyses will examine sociodemographic predictors of cluster membership and trajectory complexity, including variation by gender and other structural factors.

Authors

• Ting-Syuan Lin, University of Illinois, Urbana-Champaign

• Tim F Liao, University of Illinois