Proportional representation

Broadening the options

Richard F. Potthoff, Steven Brams

    Research output: Contribution to journalArticle

    Abstract

    Using a recent article by Monroe as a springboard, we extend and generalize his system of proportional representation (PR) by developing a general method for determining a set of winners from the ballots. Central to our analysis is the use of integer programming, which is a type of linear programming. Under Monroe's system and our generalizations of it, one minimizes total misrepresentation, where misrepresentation is based on approval votes, the rankings of candidates, or other ballot information. Our method allows for a variety of PR systems, including those proposed by Monroe, by Chamberlin and Courant, and by Tullock, as well as a new system we call 'hierarchical PR'. Ties, the filling of vacancies, and certain problems of both large and small electorates are all rendered manageable with integer programming. We discuss nonmanipulability, representativeness, and other criteria for selecting a PR system and conclude with some recommendations.

    Original languageEnglish (US)
    Pages (from-to)147-178
    Number of pages32
    JournalJournal of Theoretical Politics
    Volume10
    Issue number2
    StatePublished - Apr 1998

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    Keywords

    • Approval voting
    • Integer programming
    • Manipulability
    • Proportional representation
    • Voting

    ASJC Scopus subject areas

    • Sociology and Political Science

    Cite this

    Potthoff, R. F., & Brams, S. (1998). Proportional representation: Broadening the options. Journal of Theoretical Politics, 10(2), 147-178.

    Proportional representation : Broadening the options. / Potthoff, Richard F.; Brams, Steven.

    In: Journal of Theoretical Politics, Vol. 10, No. 2, 04.1998, p. 147-178.

    Research output: Contribution to journalArticle

    Potthoff, RF & Brams, S 1998, 'Proportional representation: Broadening the options', Journal of Theoretical Politics, vol. 10, no. 2, pp. 147-178.
    Potthoff, Richard F. ; Brams, Steven. / Proportional representation : Broadening the options. In: Journal of Theoretical Politics. 1998 ; Vol. 10, No. 2. pp. 147-178.
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