The Party Systems of the Australian States: Patterns of Partisan Competition, 1945-1986

There has been a longstanding interest in the relationship betweenthe party system in reflecting regional diversity and maintainingthe dispersal of power in federations. Given the relative scarcityof information on this question in the Australian federation,this article examines the extent to which the party systemsof the Australian states differ by looking at a number of indicatorssummarizing patterns of partisan support in elections and legislaturesover a period of forty years. Its findings demonstrate persistentdifferences in the structure and dynamics of the state partysystems. In particular, the study shows that, in spite of thedichotomizing tendencies of a parliamentary system, electoralcompetition in the A ustralian states is characterized by astrong tendency to dispersed multi-partyism rather than simplebipartyism, although the individual states occupy varying positionswithin this range. The charting of this partisan diversity isimportant in questioning some of the presumptions of regionaluniformity that have been applied to the study of the Australianfederal system.