Topics: Voting Systems : Single Transferable Vote

The Single Transferable Vote (STV) system is a form of preferential voting which aims to achieve proportional representation in multiple-candidate elections (as for parliaments), and to mitigate against tactical spoiler effects in single candidate elections (as for constituencies). Instant Runoff Voting, also known as the Hare system, Alternative Vote, or the Clark system, is a variant of STV.

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