Two-party-preferred vote

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In Australian politics, the two-party-preferred vote (TPP or 2PP) is the result of an opinion poll or a projection of an election result in which preferences are distributed between the two major parties, being the Labor Party and the Liberal-National Coalition, e.g. "Coalition 50%, Labor 50%". The preference distribution is usually based on the results of the most recent election, with votes for other candidates being distributed between the two major parties. As such, the TPP is a rough indicator of voting intent that focuses on determining the likely majority in the lower house. It is compared to previous values to predict the swing and hence the likelihood of a change in government between the major parliamentary parties. The TPP assumes a two-party system of government, i.e. that after distribution of votes from less successful candidates, the two remaining candidates will be from each of the two major parties. It provides no indication of the number of representatives of other parties...

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