representation and electoral systems
type: Concept
narrower: additional member system

concepts
type: Collection
type: ConceptGroup
member: additional member system

additional member system
definition: The additional member system is an electoral process that combines both constituency and proportional voting. Voters may cast two ballots, the first for a representative of their geographic region and the second for a political party. [Source: The Encyclopedia of Political Science; Additional Member System]
broader: representation and electoral systems
type: Concept