Instant Runoff Electoral System

The instant runoff electoral system, also known as ranked-choice voting, is a voting method where voters rank candidates by preference. If no candidate wins a majority of first-preference votes, the candidate with the fewest votes is eliminated, and their votes are redistributed according to the voters' next preferences, continuing until one candidate achieves a majority.

IRI: http://lmss.sali.org/R7Jows5YP8imYL7zA2abXZE
Branch: Objectives
Source: https://en.wikipedia.org/wiki/Instant-runoff_voting

Also known as

Ranked-Choice Voting, Alternative Vote, IRV, Instant Runoff Voting, Preferential Balloting System, Preferential Voting, Ranked Voting, Sequential Runoff Voting

Examples

Multi-Winner IRV: Minneapolis city council elections
Proportional IRV: Australian Senate elections
Single-Winner IRV: San Francisco mayoral elections

Ancestry path

Objectives Regulatory Objectives Electoral System Winner-Take-All Electoral System Winner-Take-All - Single-Winner System

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