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CPI December Quarter 2009 Up 0.5%

published  First Published: 27/01/2010
Article written by: Nigel Brookson
The most significant price rises this quarter were for fruit (+15.9%), domestic holiday travel and accommodation (+6.6%), house purchase (+1.0%), rent (+1.0%) and beer (+2.1%).
 
The most significant off setting price falls were automotive fuel (Ė2.8%), audio, visual and computing equipment (Ė7.1%) and pharmaceuticals (Ė5.3%).
 
The ABS Consumer Price Index rose 2.1% through the year to December quarter 2009, compared to an annual rise of 1.3% to September quarter 2009.
 
PRICE INDEXES AND CONTRACT PRICE INDEXATION
 
INTRODUCTION
Price indexes published by the Australian Bureau of Statistics (ABS) provide summary measures of the movements in various categories of prices over time. They are published primarily for use in Government economic analysis.
 
Price indexes are also often used in contracts by businesses and government to adjust payments and/or charges to take account of changes in categories of prices (Indexation Clauses).

THE ROLE OF THE ABS IN RESPECT OF INDEXATION CLAUSES
 
Although the ABS acknowledges that the various price indexes it publishes are used by businesses and government to adjust payments and/or charges, it neither endorses nor discourages such use.
 
The role of the ABS as the central statistical authority for the Australian government includes to publish price index data, and to broadly explain the underlying methodology and general limitations on such data.
The ABS may provide information about what price indexes are published by it, but will not recommend or comment on the use (or otherwise) of the price indexes. In addition, the ABS does not advise, comment or assist in preparing or writing contracts and nor does it provide advice on disputes arising from contract interpretation.

WHAT PRICE INDEXES ARE PUBLISHED BY THE ABS?
 
The Consumer Price Index (CPI) is regarded as Australiaís key measure of inflation.
It is designed to provide a general measure of price inflation for the Australian household sector as a whole. The CPI measures changes over time in the prices of a wide range of consumer goods and services acquired by Australian metropolitan households and it is published quarterly, 3 to 4 weeks after the end of the reference quarter.
It is revised only in exceptional circumstances, such as to correct a significant error. As is the case with all price indexes, the reference base (i.e. the period in which the index is set equal to 100.0) will be changed periodically. The index number levels for all periods will be changed by this process and it may also result in differences, due to rounding, between the percentage changes published on the old base and those on the new base.
 
Several Producer Price Indexes (PPIs) are produced and published. Economy-wide indexes are presented within a stage of production framework together with a set of indexes relating to specific industries (selected manufacturing, construction, mining and service industries).
PPIs can be constructed as either output measures or input measures. Output indexes measure changes in the prices of goods and/or services sold by a defined sector of the economy while input indexes measure changes in the prices of goods and/or services purchased by a particular economic sector. PPIs are published quarterly, 3 to 4 weeks after the end of the reference quarter.
 
Once published the PPIs are revised infrequently, sometimes to incorporate improved methods in one or more of the components and occasionally to correct an error. As is the case with all price indexes, the reference base (i.e. the period in which the index is set equal to 100.0) will be changed periodically. The index number levels for all periods will be changed by this process and it may also result in differences, due to rounding, between the percentage changes published on the old base and those on the new base.
 
The International Trade Price Indexes are intended to broadly measure changes in the prices of goods imported into Australia (the Import Price Index (IPI)) and goods exported from Australia (the Export Price Index (EPI)). The prices measured in the indexes exclude import duties, and exclude freight and insurance charges incurred in shipping goods between foreign and Australian ports.
 
As the prices used in the indexes are expressed in Australian currency, changes in the relative value of the Australian dollar and overseas currencies can have a direct impact on price movements for the many commodities that are bought and sold in currencies other than Australian dollars. Both the IPI and EPI are published quarterly, 3 to 4 weeks after the end of the reference quarter.
 
The IPI and EPI are not often revised. As is the case with all price indexes, the reference base (i.e. the period in which the index is set equal to 100.0) will be changed periodically. The index number levels for all periods will be changed by this process and it may also result in differences, due to rounding, between the percentage changes published on the old base and those on the new base.
 
The Labour Price Index (LPI) broadly measures annual changes in the price of labour in the Australian labour market. The Wage Price Index (WPI) broadly measures changes in the wages paid by Australian businesses to employees and it is compiled and published quarterly, about 6 to 7 weeks after the end of the reference quarter. The non-wage price indexes and the aggregate labour price index are only produced annually in respect of financial years ending 30 June. Individual indexes are compiled for various combinations of State/Territory, sector (private/public), and broad industry groups, with wage price indexes also being produced for broad occupation groups.
 
The Ďheadlineí wage price index is that for the total hourly rates of pay excluding bonuses for Australia and it is published in original, seasonally adjusted and trend terms. The seasonally adjusted and trend series for some quarters are revised as extra quarters are included in the series analysed for seasonal influences, but the non-seasonally adjusted (i.e. original) series is not revised in normal circumstances.
 
As is the case with all price indexes, the reference base (i.e. the period in which the index is set equal to 100.0) will be changed periodically. The index number levels for all periods will be changed by this process and it may also result in differences, due to rounding, between the percentage changes published on the old base and those on the new base.
 
Price indexes covering a wide range of economic transactions are produced as part of the National Accounts. Two types of national accounts based price index are published. The first type is referred to as chain price indexes which are calculated for all expenditure components and sub-components of Gross Domestic Product (GDP).
 
The components are: government consumption, household consumption, private capital formation, public capital formation, and imports and exports of goods and services. Chain price indexes are also calculated for GDP and other macro-economic aggregates such as Domestic Final Demand and Gross National Expenditure.
Chain price indexes use as their weights the volumes of expenditure in the previous financial year (ending 30 June). The second type of price index is referred to as implicit price deflators (IPDs) which are compiled at the same levels as for the chain price indexes but which use for their weights the volumes of expenditure in the current period.
IPDs have long been used to provide macro-economic measures of price change and are usually used in seasonally adjusted form. Both chain price indexes and IPDs are compiled quarterly and are published roughly two months after the reference period.
 
Unlike the other price indexes listed above, the National Accounts price indexes are often revised, sometimes to a significant extent. Also, they are re-referenced to a new base year every year so the level of the index changes regularly, although the percentage changes for earlier periods are not normally affected by this process, other than for rounding differences. These two characteristics are important considerations if National Accounts price indexes are to be used in contracts.
 

 

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