Yes, I am sure there will be a bit of a "What? That's not what the media says!"
That's because the media only talks about the preliminary results.
The preliminary results get revised twice as more concrete data comes in. Actually the size and sign of the revisions provide useful information. I suspect the ABS (like most similar bureaus) use trend or historical data to modify the preliminary results while waiting for the full data to come in. The magnitude of the revisions might indicate turning points.
The first revision to the September 2010 quarter house price index have reduced it from +0.1% to -0.3%. The March 2010 and June 2010 quarters were revised down between the preliminary and final revision by -1.4 percentage points and -1.3 percentage points respectively. So assuming the same level of revision occurs for the September 2010 quarter the final result will be a decline of -1.3% in prices for the September 2010 quarter.
Large negative revisions over the last few quarters seems to be in all capitals. Including Canberra BTW which seems to be regarded as the "safest" area because of its large public service.
EDIT: Don't post before morning coffee so can get year right!
That's because the media only talks about the preliminary results.
The preliminary results get revised twice as more concrete data comes in. Actually the size and sign of the revisions provide useful information. I suspect the ABS (like most similar bureaus) use trend or historical data to modify the preliminary results while waiting for the full data to come in. The magnitude of the revisions might indicate turning points.
The first revision to the September 2010 quarter house price index have reduced it from +0.1% to -0.3%. The March 2010 and June 2010 quarters were revised down between the preliminary and final revision by -1.4 percentage points and -1.3 percentage points respectively. So assuming the same level of revision occurs for the September 2010 quarter the final result will be a decline of -1.3% in prices for the September 2010 quarter.
Large negative revisions over the last few quarters seems to be in all capitals. Including Canberra BTW which seems to be regarded as the "safest" area because of its large public service.
EDIT: Don't post before morning coffee so can get year right!
Last edited: