Interactive Overview of Combinations of Electoral Systems & Quota Types

Electoral Systems

  • List Proportional Representation with small districts (List PR)

  • List Proportional Representation with large districts (List PR)

  • First Past The Post (FPTP)

  • Two-Round Systems (TRS)

  • Parallel Systems

  • Mixed Member Proportional (MMP)

  • Block Vote (BV), Limited Vote (LV) and Single Non-Transferable Vote (SNTV)

  • Party Block Vote (PBV)

  • Alternative Vote (AV)

  • Single Transferable Vote (STV)

  • Borda Count (BC)

Quota Types

  • No Quota

  • Reserved seats: certain districts for women candidates only

  • Reserved seats: a tier for women candidates only

  • Reserved seats: best loser system

  • Nomination: percentage regulations without placement mandate/rank-order rules

  • Nominations: percentage regulations with placement mandate/rank-order rules (top-ranking, zipper quotas)


Green = Best-fit Combinations

Yellow = Medium-fit Combinations

Red = Non-favourable Combinations