The following papers are in Adobe Acrobat (*.pdf) format. If you do not have an Adobe Acrobat reader, you may obtain one for free at http://www.adobe.com.


"The Polarization of Contemporary American Politics" (with Christopher Hare, September 2013)

"Why Hasn't Democracy Slowed Rising Inequality?" (with Adam Bonica, Nolan McCarty, and Howard Rosenthal, August 2013)

"The Structure of Utility in Spatial Models of Voting" (with Royce Carroll, Jeffrey B. Lewis, James Lo, and Howard Rosenthal, December 2012)

"Bayesian Aldrich-McKelvey Scaling" (with Dave Armstrong, Ryan Bakker, Royce Carroll, and Christopher Hare, October 2012)

"Bayesian Metric Multidimensional Scaling" (with Ryan Bakker, October 2012)

"A Spatial Model for Legislative Roll Call Analysis." GSIA Working Paper 5-83-84, September 1983 (With Howard Rosenthal). (This is the 1983 original -- our first paper on NOMINATE. For historical purposes only. Please note the discussion pages 14 and 15.)

"Does Gerrymandering Cause Polarization?" (with Nolan McCarty and Howard Rosenthal, July 2009)

"The Scientific Status of Geometric Models of Choice." (May, 2009)

"NOMINATE and American Political History: A Primer." by Phil Everson (Swarthmore), Rick Valelly (Swarthmore), and Jim Wiseman (Agnes Smith)

"The Roots of the Polarization of Modern U. S. Politics." (September, 2008)

"Comparing NOMINATE and IDEAL: Points of Difference and Monte Carlo Tests." (with Royce Carroll, Jeffrey B. Lewis, James Lo, and Howard Rosenthal, August 2008)

"Scaling Roll Call Votes With wnominate in R." (with Royce Carroll, Jeffrey B. Lewis, and James Lo, June 2008)

"A Method of Linking Surveys Using Affective 'Signatures' with an Application to Racial/Ethnic Groups in the U. S." (with Marisa A. Abrajano, April 2008)

"Measuring Bias and Uncertainty in DW-NOMINATE Ideal Point Estimates via the Parametric Bootstrap." (with Royce Carroll, Jeffrey B. Lewis, James Lo, and Howard Rosenthal, September 2007)

"Extremism, Intensity, and Perception in Congressional Voting." GSIA Working Paper 33-83-84, March 1984 (With Howard Rosenthal). (This is the 1984 original -- For historical purposes only.)

"The Evolving Influence of Psychometrics in Political Science." (December 2005)

"The Decline and Rise of Party Polarization in Congress During the Twentieth Century." (October 2005)

"The Unidimensional Congress, 1919-84." GSIA Working Paper 44-84-85 (With Howard Rosenthal) (This is the 1985 original -- For historical purposes only.)

Inferring Universals From Grammatical Variation: Multidimensional Scaling for Typological Analysis (with William Croft, 19 July 2004)

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