Mechanisms of Political Responsiveness: The Information Sources Shaping Elected Representatives' Policy Actions

This study examines the micro-level foundations of how policy responsiveness may come about. Our study builds on the assumption that elected officials' information source use shapes their policy actions. We analyze the variation in information sources elected officials rely on for agenda-setting and policy formulation, distinguishing between public opinion sources, advocacy sources, and expert sources. Additionally, we examine how elected officials' public opinion sources vary across individuals, parties, and political systems. Based on a 2015 survey with 345 Members of Parliament in Belgium and Canada, the results indicate that the actions of elected representatives are more affected by public opinion sources like citizens and the mass media when they initially prioritize issues for policy action, while interest groups are prominent in both stages, and parties and expert sources are more used in the policy formulation phase. Furthermore, politicians in majoritarian systems, those belonging to the opposition and members of populist parties, tend to rely more on public opinion sources than their peers in proportional systems, those in the majority and non-populist parties.