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Difficulty: HardElectoral Systems and Their Characteristics

Match each electoral system listed on the left with its defining operational outcome or structural characteristic on the right.

  • First-Past-The-Post SystemOften creates a distortion between total popular vote share and parliamentary seats, allowing a party with a simple plurality to win a majority.
  • Proportional Representation SystemAllocates legislative seats in direct proportion to total votes cast for each party, frequently requiring coalition governments.
  • Second Ballot (Run-off) SystemRequires a candidate to secure an absolute majority (>50%>50\%) in a second voting round if no candidate meets the threshold initially.
  • Alternative Vote (Preferential) SystemUses ranked-choice voting in single-member districts, sequentially eliminating lower candidates and transferring votes until one candidate achieves an absolute majority.

Answer

The First-Past-The-Post system matches with vote-seat distortion and simple plurality winning; Proportional Representation matches with seat allocation proportional to party vote share and coalition governance; the Second Ballot system matches with requiring an absolute majority via a second voting round; and the Alternative Vote matches with ranked-choice voting and preference redistribution.
Each electoral system is accurately paired with its operational counting rule and political consequence: First-Past-The-Post leads to vote-seat disparities via simple plurality; Proportional Representation reflects overall vote percentages; Second Ballot requires a run-off for an absolute majority; and Alternative Vote uses preference redistribution.

Step-by-Step Solution

1
Analyze the winner-take-all mechanics of First-Past-The-Post (simple plurality).
Identify that a candidate wins by getting more votes than any single competitor, which distorts overall representation by failing to require an absolute majority of 50%+150\% + 1.
Plurality rules prioritize relative victory in single-member constituencies over national vote share proportionality.
2
Examine the structural principle of Proportional Representation.
Match PR with the equitable allocation of legislative seats based on party vote percentages.
PR aims to represent all electoral factions according to their popular strength.
3
Distinguish between majoritarian systems requiring absolute majorities (Second Ballot vs Alternative Vote).
Second Ballot uses two distinct voting days/rounds to secure >50%>50\%, whereas Alternative Vote achieves >50%>50\% in a single voting event by redistributing ranked preferences from eliminated candidates.
Both enforce an absolute majority requirement but rely on different procedures (run-off election vs ballot preference transfer).

Key Concept

Operational Mechanics and Characteristics of Majoritarian vs Proportional Electoral Systems
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Topics

Electoral Systems and Their Characteristics

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