Template:Electoral systems maps

Head of state	Lower house or unicameral legislature	Upper house
First past the post (FPTP) Two-round system (TRS) Instant-runoff voting, including contingent voting (IRV) Election by legislature Election by electoral college Not elected (mostly monarchies) In transition No information	Single-member constituencies: First past the post (FPTP) Two-round system (TRS) Instant-runoff voting (IRV) Multi-member constituencies, majoritarian: Block voting (BV) or mixed FPTP and BV Party block voting (PBV) or mixed FPTP and PBV Limited voting Single non-transferable vote (SNTV) or mixed FPTP and SNTV Modified Borda count Multi-member constituencies, proportional: Party-list proportional representation (party-list PR, closed list) Party-list proportional representation (party-list PR, open list for some parties) Party-list proportional representation (party-list PR, open list) Panachage (party-list PR, free list) Personalised proportional representation (party-list PR and FPTP) Single transferable vote Mixed majoritarian and proportional: Mixed-member proportional representation (Seat linkage mixed system) (party-list PR and FPTP) Additional member system (party-list PR and FPTP seat linkage mixed system) (less proportional implementation of of MMP) Parallel voting / mixed member majoritarian (party-list PR and FPTP) Parallel voting (party-list PR and TRS) Parallel voting (party-list PR and BV or PBV) Vote linkage mixed system or limited Seat linkage mixed system (party-list PR and FPTP) ((partially compensatory semi-proportional implementation of of MMP) (party-list PR and FPTP) Majority bonus system (non-compensatory) Majority jackpot system (compensatory) Two-round majority jackpot system (compensatory) Indirect elections No relevant electoral system information: No elections Varies by state In transition No information	Single-member constituencies: First past the post (FPTP) Two-round system (TRS) Instant-runoff voting (IRV) Multi-member constituencies, majoritarian: Block voting (BV) or mixed FPTP and BV Party block voting (PBV) or mixed FPTP and PBV Single non-transferable vote (SNTV) or mixed FPTP and SNTV Mixed BV and SNTV Limited voting or cumulative voting Multi-member constituencies, proportional: Party-list proportional representation (party-list PR, closed list) Party-list proportional representation (party-list PR, open list) Party-list proportional representation (party-list PR, partially-open list) Partially party-list proportional representation (party-list PR, closed list) Single transferable vote Mixed majoritarian and proportional: Parallel voting / Mixed-member majoritarian (party-list PR and FPTP) Parallel voting (party-list PR and BV or PBV) Parallel voting (party-list PR and SNTV) Other: Varies by federal states, or constituency Indirect election: Election by electoral college or local/regional legislatures Partly elected by electoral college or local/regional legislatures and appointed by head of state Partly elected by electoral college or local/regional legislatures, partly elected in single-member districts by FPTP, and partly appointed by head of state No relevant electoral system information: No elections Appointed by head of state No information / In transition Unicameral