'No Participation Without Representation': The Impact of Descriptive and Substantive Representation on the Age-Related Turnout Gap

Previous studies have extensively demonstrated that young people vote less than older ones. However, the magnitude of this age-related gap varies across different contexts: While in some countries, the gap is remarkable and increasing over time, in others, it is quite modest, and it has remained constant. This article investigates some of the factors that might explain this variability. In particular, it examines the impact of different types of representation (descriptive and substantive) on the age-related gap in turnout. It does so by relying on a dataset that combines individual-level data with information concerning the age composition of national parliaments and party system emphasis on specific issues. Overall, the dataset covers 57 elections and 19 West European countries. Results show that when young people are descriptively represented, the age-related gap in turnout is significantly reduced. The same effect occurs when party systems place relatively more emphasis on postmaterialist issues.