Partisans without Constraint: Political Polarization and Trends in American Public Opinion1

  title={Partisans without Constraint: Political Polarization and Trends in American Public Opinion1},
  author={Delia Baldassarri and Andrew Gelman},
  journal={American Journal of Sociology},
  pages={408 - 446}
Public opinion polarization is here conceived as a process of alignment along multiple lines of potential disagreement and measured as growing constraint in individuals' preferences. Using NES data from 1972 to 2004, the authors model trends in issue partisanship—the correlation of issue attitudes with party identification—and issue alignment—the correlation between pairs of issues—and find a substantive increase in issue partisanship, but little evidence of issue alignment. The findings… Expand
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