Alternative Vote
The Alternative Vote (AV) is a relatively unusual electoral system, today used only in Australia, and, in a modified form, in Nauru. Recently, the system has been muted as the best alternative to FPTP in the United Kingdom. AV was used for general elections in Papua New Guinea between 1964 and 1975 (see Papua New Guinea), and in 1996 was recommended as the new electoral system for Fiji. It is thus a good example of the regional diffusion of electoral systems discussed earlier: the majority of past, present, and likely future usage of AV has all occurred within the Oceania region.
Like elections under a First Past the Post (FPTP) system, AV elections are usually held in single-member districts. However, AV gives voters considerably more options than FPTP when marking their ballot. Rather than simply indicating their favoured candidate, under AV electors rank the candidates in the order of their choice, by marking a "1" for their favourite candidate, "2" for their second-choice, "3" for their third choice, and so on. The system thus enables voters to express their preferences between candidates, rather than simply their first choice. For this reason, it is often known as "preferential voting" in the countries using it.
AV also differs from FPTP in the way votes are counted. Like FPTP or Two-Round Systems, a candidate who has won an absolute majority of votes (fifty percent plus one) is immediately elected. However, if no candidate has an absolute majority, under AV the candidate with the lowest number of first preferences is "eliminated" from the count, and their ballot examined for their second preferences. These are then assigned to the remaining candidates in the order as marked on the ballot. This process is repeated until one candidate has an absolute majority, and is declared duly elected. For this reason, AV is usually classified as a majoritarian system, as a candidate requires an absolute majority, and not just a plurality, of all votes cast to secure a seat.
See case studies of the Australia The Alternative Vote in Australia, Sri Lanka Sri Lanka: Changes to Accommodate Diversity, and Papua New Guinea Papua New Guinea.
See advantages Alternative Vote - Advantages and disadvantages Alternative Vote - Disadvantages.
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