by Aerang Nam
In a recent article Extending the Advocacy Coalition Framework: Measuring Within-Coalition Belief Variation in Offshore Wind Policy Conflicts author Aerang Nam advances the Advocacy Coalition Framework (ACF) by developing a more precise account of how belief expression varies within coalitions and how this variation is structured by organisational affiliation. Rather than treating beliefs as latent positions inferred from actor behaviour, the article shifts attention to observable expressions of belief in public discourse and how these expressions differ in both scope and intensity across actors within the same coalition space.
Reconceptualising constraint in belief expression
A central theoretical contribution lies in the reconceptualisation of constraint in belief expression. While ACF scholarship has long acknowledged that actors do not express beliefs in fully unconstrained ways, constraint is often treated in general or implicit terms. The article advances this debate by conceptualising constraint as measurable variation in the breadth and intensity of beliefs articulated by actors within coalitions.
This reframing shifts analysis away from binary assumptions about whether belief expression is constrained and toward a more graded understanding of how it is constrained. In doing so, it strengthens the ACF’s capacity to analyse discourse in a way that is both theoretically consistent and empirically operationalisable.
Organisational affiliation and variation in coalition discourse
Building on this reconceptualisation, the article argues that organisational affiliation plays a structuring role in shaping belief expression. Rather than acting simply as a contextual background factor, organisations condition the communicative range available to actors, influencing how broadly and how intensely policy beliefs are articulated.
This produces systematic variation in actors’ belief expression within coalitions. The study shows that actors’ organisational locations are associated with differences in the breadth of beliefs they are able to express and the intensity with which those beliefs are articulated in public discourse. Constraint is therefore not uniform across coalition members but varies in patterned ways linked to organisational embeddedness.
Offshore wind policy debates in the United States
Drawing on debates over offshore wind energy policy in the United States, the article examines how organisational affiliation shapes patterns of constrained belief expression in public discourse. Across these debates, the analysis identifies systematic differences in how actors within the same coalition articulate policy beliefs, with variation in both breadth and intensity of expression corresponding to their organisational positioning within the policy subsystem.
Advancing the Advocacy Coalition Framework
Overall, the article contributes to the ACF by refining how belief expression is conceptualised and operationalised. By redefining constraint as variation in expressed breadth and intensity, and by linking this variation systematically to organisational affiliation, it extends the framework’s capacity to engage with discourse-based evidence without reducing it to static belief categories.
In doing so, it enhances the ACF’s sensitivity to variation within coalitions and offers a more differentiated account of how belief systems are articulated in policy subsystems.
You can read the original research in Policy & Politics at
Nam, A. (2026). Extending the Advocacy Coalition Framework: measuring within-coalition belief variation in offshore wind policy conflicts. Policy & Politics (published online ahead of print 2026) from https://doi.org/10.1332/03055736Y2026D000000100
If you enjoyed this blog post, you may also be interested in reading:
Pechmann, A., & Hinkel, J. (2026). Self-interest within the Advocacy Coalition Framework: how material beliefs affect change in German munitions policy. Policy & Politics, 54(3), 503-527 from https://doi.org/10.1332/03055736Y2026D000000086
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