QUALITY DECLARATION - SUMMARY
INSTITUTIONAL ENVIRONMENT
For information on the institutional environment of the Australian Bureau of Statistics (ABS), including the legislative obligations of the ABS, financing and governance arrangements, and mechanisms for scrutiny of ABS operations, please see ABS Institutional Environment.
RELEVANCE
This publication contains preliminary estimates from the 2013-14 Value of Agricultural Commodities Produced (VACP) Collection. The value estimates in this publication are derived by the multiplication of price and quantity of agricultural commodities. Price data refer to the average unit value of a given commodity realised in the marketplace. Price information is obtained from ABS collections, as well as from non-ABS sources, including marketing authorities and industry sources.
Quantity data for crops and egg production have been collected via the 2013-14 Rural Environment and Agricultural Commodities Survey (REACS) . Remaining commodity data are obtained from other ABS collections, with some information gathered from external sources. The data are collected on a state/territory basis and then aggregated to derive Australian totals.
TIMELINESS
Preliminary estimates from the VACP Collection are generally published within 7 months of the reference period, and at the same time as the preliminary agricultural production estimates from the Rural Environment and Agricultural Commodities Survey (REACS) which can be found in Principal Agricultural Commodities, Australia (cat. no. 7111.0). Final estimates from the 2013-14 VACP Collection will be released in Value of Agricultural Commodities Produced, Australia (cat no. 7503.0) from mid-2015.
ACCURACY
The accuracy of price data is ensured by the collection of price data from the best known sources. Where a statutory authority handles marketing of the whole or a portion of a product, data are usually obtained from this source. Information is also obtained from marketing reports, wholesalers, brokers, dealers and auctioneers. Production data are obtained from a range of high-quality sources, including ABS agricultural commodity collections and industry bodies. Extensive editing of production and prices data and checking of resultant value estimates against earlier years and other relevant sources are used to ensure the accuracy of the estimates produced.
All preliminary estimates in this publication are subject to sampling error. For more information about these errors, refer to the Explanatory Notes within this release.
COHERENCE
Most estimates in this publication are directly comparable to previous reference periods. However, estimates of 'Total crops', 'Total livestock slaughtering and other disposals' and 'Total agriculture' are not directly comparable to all previous issues due to changes in what items have been released as preliminary estimates (and therefore, a change to the items included in these totals).
INTERPRETABILITY
The VACP Collection provides a broad range of data about the value of agricultural commodities produced in Australia through a suite of standard products or as data customised for individual requirements. Detailed Explanatory Notes are provided in Value of Principal Agricultural Commodities Produced, Australia (cat. no. 7501.0) to assist users in determining and specifying their data requirements and to understand the concepts underlying the data.
ACCESSIBILITY
An extensive range of data are available from a variety of agriculture based collections on the ABS website.
If the information you require is not available as a standard product or service, the ABS Consultancy Services can assist with customised services to suit your requirements. Inquiries should be made to the National Information and Referral Service on 1300 135 070.
Quality Declaration 
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