This article investigates how political identities impact nonpolitical decisions, specifically roommate matching. Using conjoint analysis on a large dataset of roommate choices, it finds that politically aligned pairing preferences significantly influence selection outcomes.

Data & Methods: Conjoint analysis applied to 10,000+ roommate matches from university housing systems.

Key Findings: Political alignment is a notable factor in roommate selection alongside typical traits like major and lifestyle. The study reveals measurable preference patterns for matching politically similar roommates.

Why It Matters: These findings suggest political identity operates as an implicit sorting mechanism even outside formal electoral contexts, potentially influencing social networks within universities.