Summary

Comparative electoral-system design — the choices a democracy makes about how votes translate into seats (plurality, PR, mixed), district size, ballot structure, and thresholds — and how those choices shape what campaigns can and must do.

Body

Three families of electoral system: plurality/majority (single-member districts, FPTP, two-round runoff), proportional representation (party-list, with district magnitude determining proportionality), and mixed systems (parallel or compensatory, like Germany’s MMV or New Zealand’s MMP). Each shapes campaign incentives: FPTP rewards geographically concentrated appeals; pure PR rewards broad-coalition appeals and visibility to party lists; mixed systems blend both. International IDEA’s Electoral Management Design handbook covers the EMB-design trade-offs and is the standard academic reference [source: idea-electoral-management]. The ACE Electoral Knowledge Network is the encyclopaedic cross-national resource [source: ace-project]. International IDEA publishes cross-national data and comparative analysis on constitutional and electoral design [source: international-idea]. BRIDGE is the standard practitioner training curriculum used by election administrators worldwide [source: bridge-electoral]. For a campaign strategist: the electoral system is the constraint on what any tactic can accomplish — a boycott makes sense in a proportional system where the seat costs shift, but rarely in a FPTP system where the marginal seat is locked to two parties.

Use it for

Sourcing comparative analysis when arguing for reform; understanding what tactics work in which system; briefing a coalition considering an electoral-system reform campaign.

None yet.

Open Questions

None yet.

Open Questions

None yet.

Sources & verification

  • sources/idea-electoral-management — grounding: secondary — RAW (265 chars)
  • sources/ace-project — grounding: secondary — unfetchable
  • sources/international-idea — grounding: secondary — RAW (4931 chars)
  • sources/bridge-electoral — grounding: secondary — RAW (1586 chars)

Verified 2026-06-23 by llm-qc.