2019 House of Reps Figures Finalised

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The 2019 House of Representatives results have been finalised, a joyous event that tends to arrive unheralded two to three months after every federal election.  Although all the preference throws had been completed and uploaded some time ago, the final figures importantly include the two-party preference flows by party.  Normally I say that this is very useful for assessing the performance of polls.  At this election the polls failed dismally, mainly because of failures on the Coalition and Labor primaries (except for Ipsos which failed on the Greens primary instead of Labor); nonetheless there will be a final review of them here fairly soon.  This article is a general roundup of other matters regarding the House of Reps figures.

Preference Shifting

The final 2PP result is 51.53% to the Coalition and 48.47% to Labor, a 1.16% swing to the Coalition.

There was a very large shift in the preferences of Pauline Hanson's One Nation.  One Nation preferences flowed only 50.47% to Coalition in 2016 but 65.22% to Coalition in 2019 (even more than the 60-40 split believed to have been assumed by Newspoll after considering state election results).  Overall, preferences from parties other than the Greens and One Nation also flowed more strongly to the Coalition by a few points (53.93% compared to 50.79%) but this was caused by the United Australia Party flowing 65.14% to the Coalition.  Excluding the Greens, One Nation and UAP, Others preferences (50.7% to ALP) were 1.5 points stronger for Labor than in 2016.  It is also interesting that Katters Australian Party preferences flowed 14 points more strongly to the Coalition, very similar to the shift for One Nation.

2016 House Of Reps Figures Finalised

I'm not sure exactly when this happened, but sometime in the last two weeks while I have been away overseas, the AEC has released the final detailed set of federal election results.  Although all House of Representatives seat results were already known, the release of final information on two-party preference flows and preference distributions is very useful for many things, including assessing the performance of polls.  Final results are here.  This article is a general roundup of various details, and soon I will be using the figures to conduct an in-depth review of polling accuracy at the election, and after that to start a new polling aggregate model.  There is quite a backlog of other articles that I want to write, so I hope I can get through as many of these as possible in the next three weeks before another round of fieldwork.

The final two-party preferred result is 50.36% to the Coalition to 49.64% to the ALP.  This represented a clear success for the last-election method of preference prediction, which would have predicted a 2PP of 50.53% for the Coalition based on the primaries actually cast.  The respondent-preferences method (on average across polls using it) expected a shift in preferencing large enough to shift the 2PP result by at least 0.6 points (ie Labor would have won the 2PP).  This continues the superior track record of last-election preferences, and I will continue to treat respondent preferences with caution. 

2013 Federal Election Results Finalised ... Finally!

The AEC has finally released the 2PP results for the various non-classic divisions at the 2013 election and hence the final 2PP result nationally.  Results can be seen here.

The final 2PP result is 53.49% to the Coalition and 46.51% to the ALP.  This is lower than projections based on expected results in the non-classic divisions (something like 53.6 to 53.7 was considered most likely).  It's probable that a reason for the difference from what was expected was that more National Party votes were distributed in three-corner contests than in 2010, especially because of the loss of O'Connor to the Liberals.  Nationals votes leak more to Labor ahead of the Liberals (24.6%) than Liberal votes leak to Labor ahead of the Nationals (9.2%).  In the case of O'Connor, this produces a swing "to" Labor in the 2PP result, caused solely by the Liberals rather than the Nationals winning the seat.