8762.0 - Engineering Construction Activity, Australia, Sep 2017 Quality Declaration
Previous ISSUE Released at 11:30 AM (CANBERRA TIME) 17/01/2018
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SEPTEMBER KEY POINTS
VALUE OF WORK DONE, CHAIN VOLUME MEASURES
VALUE OF WORK COMMENCED, CURRENT PRICES
ABOUT THIS ISSUE
This publication updates the preliminary estimates released in Construction Work Done, Australia (cat. no. 8755.0) on 22 November 2017.
CHANGES THIS ISSUE
A new base year, 2015-2016, has been introduced into the chain volume estimates which has resulted in revisions to growth rates in subsequent periods. In addition, the chain volume measures have been re-referenced to 2015-2016, preserving additivity in the quarters after the reference year. Re-referencing affects the levels, but not the movements in, chain volume estimates.
This release includes revisions to Engineering Construction data back to June 2017.
Several time series spreadsheets for recent quarters contain 'np' (not available for publication) annotations. This is due to confidential data being contained in these series.
Trend estimates should be used with caution due to the volatility caused by large engineering projects. For more details on trend estimates, please see paragraphs 22 to 24 of the explanatory notes.
Mining projects tend to be complex in structure and comprise a number of different investment activities including exploration, engineering construction, plant and equipment and buildings. A feature article released in the March 2012 issue of Private New Capital Expenditure and Expected Expenditure, Australia (cat. no. 5625.0) provides a summary of the conceptual basis of the relevant ABS publications that measure investment in Australia, using a hypothetical mining project to illustrate how this investment is reflected in ABS data.
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