Party responsiveness over time: From left-right to issue specific dimensions

Parties’ ideological responsiveness to public opinion is a key finding in the party politics literature. Leveraging the longitudinal coverage of public opinion and party position data, this research note shows that findings of left-right ideological responsiveness are limited to a specific time period. We find that since the mid-1990s, left-right shifts in public opinion are no longer significantly associated with party position changes on the same dimension. By examining over-time changes in responsiveness on more specific issue dimensions, we also uncover that at about the same time, a pattern of responsiveness on issues related to nationalism/immigration has emerged. These findings highlight the need to move beyond a focus on a single left-right dimension for studying public opinion and party behavior.