Big & rich: A new way to measure attention and participation diversity.

Policy process scholars often are interested in the relative diversity or concentration of attention across issues, or the relative participation of different groups and information sources within an issue domain or policy venue. Are policymakers devoting lots of attention to a small set of issues o...

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Publicado en:Policy Studies Journal Vol. 54; no. 1; pp. 1 - 15
Autor principal: Lewallen, Jonathan
Formato: Artículo
Publicado: Wiley-Blackwell Feb2026
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Acceso en línea:Ver este registro en EBSCOhost
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      dt: Feb2026
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        atl: Big & rich: A new way to measure attention and participation diversity.
      aug:
        au: Lewallen, Jonathan
        affil: Department of Political Science & International Affairs, University of Tampa, Tampa Florida, , USA
      su:
        Participation
        Social groups
        Policy sciences
        Entropy (Information theory)
        Political agenda
        Uncertainty (Information theory)
      sug:
        subj:
          Participation
          Social groups
          Policy sciences
          Entropy (Information theory)
          Political agenda
          Uncertainty (Information theory)
      keyword:
        agenda setting
        measurement
        policy process
        Definición de la agenda
        Medición
        Proceso de políticas
        度量
        政策过程
        议程设置
        agenda setting
        measurement
        policy process
        Definición de la agenda
        Medición
        Proceso de políticas
        度量
        政策过程
        议程设置
      ab: Policy process scholars often are interested in the relative diversity or concentration of attention across issues, or the relative participation of different groups and information sources within an issue domain or policy venue. Are policymakers devoting lots of attention to a small set of issues or dividing their attention more evenly across a larger agenda? Are a few groups dominating deliberation or is participation more evenly distributed among actors? The Shannon's H measure of information entropy has become the most common measure of diversity or concentration of attention and participation, with higher values indicating a relatively more diverse issue agenda and lower values indicating more concentration or less entropy. Many possible combinations of categories and the proportions of observations within those categories can produce statistically‐indistinguishable values, which makes Shannon's H less informative than we might like. This research note proposes new measures of richness and evenness to capture both the breadth and relative spread of attention or participation. The note provides examples of how to measure and visualize richness and evenness of attention across policy actors, the richness and evenness of actors across issues, and richness and evenness across time.
      pubtype: Academic Journal
      doctype: Article
      src: R
    language: English
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