Abstract: | The single transferable vote electoral system, popular with many electoral reformers, has been used for parliamentary elections in the Republic of Ireland since 1922. Examination of its impact shows that it has delivered as high a degree of proportionality as most PR systems despite the unavoidable use of relatively small district magnitudes. It has not produced either a fragmented party system or unstable governments. Critics have blamed it for contributing to a weak parliament, but these criticisms remain unproven. Suggestions are made for the wider use of STV, especially in countries currently employing preferential list systems. |