• Dynamic Ideal Point Estimation via Markov Chain Monte Carlo for the U.S. Supreme Court, 1953-1999
    Andrew D. Martin and Kevin M. Quinn. 2002.
    Political Analysis. 10: 134-153.
    [ PDF / WEB SUPPLEMENT]

  • The Median Justice on the U.S. Supreme Court
    Andrew D. Martin, Kevin M. Quinn, and Lee Epstein. 2005.
    North Carolina Law Review. 83: 1275-1321.
    [ PDF ]

  • The `Rehnquist' Court (?)
    Andrew D. Martin, Kevin M. Quinn, and Lee Epstein. 2005.
    Law and Courts. 15: 18-23.
    [ PDF ]

  • Assessing Preference Change on the U.S. Supreme Court
    Andrew D. Martin and Kevin M. Quinn. 2007.
    Journal of Law, Economics, and Organization, 23:303-325.
    [ PDF ]

  • Ideological Drift Among Supreme Court Justices: Who, When, and How Important?
    Lee Epstein, Andrew D. Martin, Kevin M. Quinn, and Jeffrey A. Segal. 2007.
    Northwestern University Law Review, forthcoming.
    [ PDF ]

  • Can Ideal Point Estimates be Used as Explanatory Variables?
    Andrew D. Martin and Kevin M. Quinn. 2005.
    Unpublished working paper.
    [ PDF ]

  • Improving Judicial Ideal Point Estimates with a More Realistic Model of Opinion Content
    Kevin M. Quinn, Jong Hee Park, and Andrew D. Martin. 2006.
    Unpublished working paper.
    [ PDF ]



  • Supreme Court May Be Most Conservative in Modern History
    FiveThirtyEight
    March 29, 2012
    [ LINK ][ PDF ]

  • Court Under Roberts Is Most Conservative in Decades
    New York Times
    July 24, 2010
    [ LINK ][ PDF ]

  • Measuring the Conservatism of the Roberts Court
    New York Times
    July 24, 2010
    [ LINK ][ PDF ]

  • Statistical Time Travel Helps to Answer What-Ifs
    Wall Street Journal
    November 11, 2009
    Researchers Devise Systems to Explore How Supreme Court Justices and Baseball Players Compare With Their Predecessors
    [ LINK ][ PDF ]

  • Placing Justices on an Ideological Line
    New York Times
    May 1, 2009
    The so-called Martin-Quinn measures of judicial ideology were used by the New York Times to trace the trajectory of Justice Souter through time in an article titled "Washington Prepares for Fight Over Any Nominee." These scores were developed by Andrew Martin and Kevin Quinn (Harvard University) for a New York Times infographic.
    [ LINK ]

  • "Ask the Author": Andrew Martin
    SCOTUS Blog
    October 18, 2007
    [ LINK ][ PDF ]

  • The Drifters
    TIME
    April 8, 2007
    [ PDF ]

  • Justices Are of an Opinion, but Not Often
    Washington Post
    March 26, 2007
    [ PDF ]

  • High Court's Recent Changes May Be Just First Act
    Wall Street Journal
    February 1, 2006
    [ PDF ]

  • The Supreme Court in Flux--Always
    University of Washington A&S Perspectives
    Autumn 2001
    [ LINK ]

  • The Past and Future of Ideal Point Estimation
    Keith Poole keynote address at the Ideal Point Estimation Conference. 2002.



  • Supreme Court Database
    The modernized Spaeth dataset.
    [ LINK ]

  • Supreme Court Forecasting Project
    A related project where we forecasted Supreme Court decisions.
    [ LINK ]

  • OYEZ
    An impressive collection of Supreme Court media. Our scores are used to array the justices.
    [ LINK ]

  • Scythe
    Our C++ library used to fit the Martin-Quinn model.
    [ LINK ]
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