What is the supplementary vote electoral system?

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What is the supplementary vote electoral system?

The supplementary vote electoral system is a voting method used in some elections, particularly in the United Kingdom. Under this system, voters are asked to rank their preferred candidates in order of preference. In the first round of counting, if a candidate receives an absolute majority (50%+1) of first-preference votes, they are declared the winner. However, if no candidate achieves an absolute majority, the top two candidates proceed to a second round. In this round, all other candidates are eliminated, and voters who supported eliminated candidates have their votes transferred to their second-preference candidate. The candidate with the most votes after this redistribution is declared the winner. This system aims to ensure that the winning candidate has broad support, even if they did not receive the most first-preference votes initially.