The Irish parliament, or Dail, is elected by proportional representation, using the single transferable vote system.

BBC: The Dail

Labour offered to enact AV and conduct a referendum on a much more proportional system, the single transferable vote (STV).

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The Liberal Democrats have long campaigned for a more proportional voting system, with the single transferable vote their favoured option, but the Conservatives agreed to a referendum on AV as part of the coalition deal.

BBC: AV referendum: Union stance 'depressing', says Johnson

Northern Ireland will elect three members under a separate system of proportional representation, the single-transferable vote.

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Provocatively, the commission argued that the single transferable vote in multi-member seats, which is the Lib Dems' favoured system, should be used.

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