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== Contemporary applications ==
Pollock and coauthors made three key contributions to community structure theory. First, they conducted among the first US nationwide and cross-national studies using the community structure model, comparing multiple large metropolitan areas and countries, expanding study sample sizes beyond a focus on one or two cities. Second, Pollock et al. also evolved the theory to include a Media Vector methodological tool for measuring both content direction and editorial prominence of articles, then combining them into a single score, thereby adding a way to consider editorial evaluation as well as article content. Third, Pollock and coauthor findings often challenged the traditional “guard dog” hypothesis by concluding that media can often reflect the interests of more vulnerable stakeholders.<ref name=":1" /> Community structure studies are related to work focusing on the roles of [[social capital]] (in political science and sociology literatures) and [[social determinants of health]] (in health communication and public health literatures) and [[social ecological model]]s (in sociology and public health). In 2008, Pollock authored the entry on the "Community Structure model" for the International Encyclopedia of Communication<ref>{{Cite book|title=
== References ==
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