The RAND Blog

Regression Analysis

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    Is Geographic Clustering Driving Political Polarization?

    The ideological gap separating the Republican and Democratic parties in Congress has grown dramatically wider in recent decades. An analysis of the presidential vote in congressional districts over the last 60 years finds that the degree to which most districts are different from the 'average' district has grown, supporting the theory that polarization stems from geographic clustering.

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    Mar 3, 2015

    The Washington Post Monkey Cage Blog

    James A. Thomson , Jesse Sussell