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The article focuses on last minute changes in voting intention and its effects on public opinion in Australia. Errors in prediction on the part of public opinion surveys are usually ascribed to faulty sampling, unexpected turnout of voters, or changes in voting intention between the date of interviewing and the date of election. This article suggests that in certain types of elections last-minute changes may present a serious problem for forecasters. The article describes the predictions and the steps taken to trace the cause of errors. Political set-up in Australia has been described. The Australian Gallup Poll accurately predicted the vote for the House of Representatives and one of the referendums. It had discrepancies, however, of plus 8.6 per cent and minus 4.6 per cent on the other two referendums. All four predictions were based on interviews with the one cross-section of 2,027 people, a week before polling day. Voting in Australia is compulsory, so an unusual turnout of voters could not have caused an error.

Forecasts the economic potential of Australia's natural gas industry. Consumption of primary energy; Markets, reserves and minimum pipeline investments in natural gas; Determination of fuels prices.