| Abstract: | This paper provides an empirical test of the argument that thebroadcast newsmedia help create a ‘national’ publicopinion and mute localized opinion rooted insociodemographiccharacteristics. Using Canadian data, we provide evidence thatmajor social cleavages are reduced as exposure to the broadcastmedia goes up. However, we also provide evidence that exposureto media directed toward segmented aaudiences exacerbates socialcleavages. We conclude by speculating that public opinion maybecome more polarized around sociodemographic cleavages as narrowcastmedia become more dominant and we suggest that this has implicationsfor the study of media effectsusing survey research. |
