The Myth of the Zero-Sum: Rethinking Acculturation in American Politics

Acculturation theory has long assumed a zero-sum tradeoff where stronger attachment to a dominant culture means weaker attachment to a heritage culture. This foundational premise has never been empirically tested, yet it governs how political science measures and understands political incorporation. Using comparative cluster analysis across multiple algorithms with extensive validation procedures, this paper provides the first rigorous test of the binary model against a bidirectional alternative, drawing on the 2006 Latino National Survey (N = 4,785 eligible voters). The binary model fails. Four distinct acculturation orientations emerge — bicultural (68.4%), assimilationist (14.7%), culture-affirming (9.0%), and demicultural (7.9%) — and hybrid orientations constitute over three-quarters of the sample. The zero-sum framework structurally excludes the majority it claims to explain. These findings challenge foundational assumptions about acculturation theory and political incorporation, and demonstrate how unsupervised machine learning with rigorous validation enables hypothesis testing of theoretical frameworks long treated as settled.