What Explains Interest Group Prominence in Parliamentary Speech? Policy Agenda, Partisanship, or Conflict Expansion

Gaining the attention of legislators in a crowded advocacy landscape is a key dilemma for organized interests. Yet, there has not been a great deal of direct analysis of whether groups are indeed recognized as important by politicians in the context of them advancing political arguments. In this article, we examine under what conditions interest groups achieve prominence among political elites. Drawing on a supervised machine learning approach to code prominence from legislative speech, we exploit variations in levels of prominence for the entire Australian interest groups system. We find that prominence is highly concentrated and that it covaries with the need to align with prevailing policy agendas and the logic of conflict expansion. Conversely, we do not find evidence of a strong partisan or ideological dimension of prominence. This contributes to our understanding of the responsiveness and representativeness of democratic political systems in which the interest group sector is expected to funnel public preferences into policymaking.