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Measuring Bias and Uncertainty in DW-NOMINATE Ideal Point Estimates via the Parametric Bootstrap

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  • Carroll, Royce
  • Lewis, Jeffrey B.
  • Lo, James
  • Poole, Keith T.
  • Rosenthal, Howard

Abstract

DW-NOMINATE scores for the U.S. Congress are widely used measures of legislators' ideological locations over time. These scores have been used in a large number of studies in political science and closely related fields. In this paper, we extend the work of Lewis and Poole (2004) on the parametric bootstrap to DW-NOMINATE and obtain standard errors for the legislator ideal points. These standard errors are in the range of 1%–4% of the range of DW-NOMINATE coordinates.

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  • Carroll, Royce & Lewis, Jeffrey B. & Lo, James & Poole, Keith T. & Rosenthal, Howard, 2009. "Measuring Bias and Uncertainty in DW-NOMINATE Ideal Point Estimates via the Parametric Bootstrap," Political Analysis, Cambridge University Press, vol. 17(3), pages 261-275, July.
    • Handle: RePEc:cup:polals:v:17:y:2009:i:03:p:261-275_01
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    Cited by:

    1. Minasyan, Anna, 2018. "US aid, US educated leaders and economic ideology," European Journal of Political Economy, Elsevier, vol. 55(C), pages 244-257.
    2. Jon X. Eguia, 2013. "The Origin of Parties: The United States Congress in 1789–1797 as a Test Case," Economics and Politics, Wiley Blackwell, vol. 25(3), pages 313-334, November.
    3. James Lo, 2018. "Dynamic ideal point estimation for the European Parliament, 1980–2009," Public Choice, Springer, vol. 176(1), pages 229-246, July.
    4. Miriam Barnum & James Lo, 2020. "Is the NPT unraveling? Evidence from text analysis of review conference statements," Journal of Peace Research, Peace Research Institute Oslo, vol. 57(6), pages 740-751, November.
    5. Thomas L. Brunell & Bernard Grofman & Samuel Merrill, 2016. "The volatility of median and supermajoritarian pivots in the U.S. Congress and the effects of party polarization," Public Choice, Springer, vol. 166(1), pages 183-204, January.
    6. Marina Dodlova & Galina Zudenkova, 2016. "Incumbents' Performance and Political Polarization," CESifo Working Paper Series 5728, CESifo.
    7. Trebbi, Francesco & Canen, Nathan & Kendall, Chad, 2020. "Political Parties as Drivers of U.S. Polarization: 1927-2018," CEPR Discussion Papers 15607, C.E.P.R. Discussion Papers.
    8. Scott S. Boddery, 2019. "Signals from a politicized bar: the solicitor general as a direct litigant before the U.S. Supreme Court," Constitutional Political Economy, Springer, vol. 30(2), pages 194-210, June.
    9. Nathan Canen & Kristopher Ramsay, 2023. "Quantifying Theory in Politics: Identification, Interpretation and the Role of Structural Methods," Papers 2302.01897, arXiv.org.
    10. Andrew Stravers, 2021. "Pork, parties, and priorities: Partisan politics and overseas military deployments," Conflict Management and Peace Science, Peace Science Society (International), vol. 38(2), pages 156-177, March.
    11. Clio Andris & David Lee & Marcus J Hamilton & Mauro Martino & Christian E Gunning & John Armistead Selden, 2015. "The Rise of Partisanship and Super-Cooperators in the U.S. House of Representatives," PLOS ONE, Public Library of Science, vol. 10(4), pages 1-14, April.
    12. Sanchez-Martinez Carlos A. & Shotts Kenneth W., 2015. "Assessing Robustness of Findings About Racial Redistricting’s Effect on Southern House Delegations," Statistics, Politics and Policy, De Gruyter, vol. 6(1-2), pages 97-116, December.

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