Producer price indices volume 2002, Supplement 2
International guidelines and recommendations
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2.7 International guidelines and recommendations
The current international guidelines and recommendations for the compilation of CPIs are those adopted by the 14 th International Conference of Labour Statisticians in October-November 1987 23 . As will be seen in the comparison of key methodological elements of CPI compilation provided below, the guidelines for a number of methodological elements are very broad or, in some instances (e.g. treatment of owner-occupied housing), non existent. The overview of the methodology for compiling CPIs also provided below is not intended to be exhaustive. A more comprehensive description of the methodologies for collecting price information and compiling these indices is provided in Consumer Price Indices: An ILO Manual (Turvey, R. et al., International Labour Organisation, Geneva, 1989). The current international guidelines for CPIs are set out in this manual but in September 1998 an Inter-Secretariat Working Group on Price Statistics (IWGPS) was established at the invitation of the ILO Bureau of Statistics to develop these standards and to produce a set of integrated manuals on price index methodology. The new CPI manual, developed by the Technical Expert Group on the Consumer Price Index (TEG-CPI) under the aegis of the IWGPS, is expected to be published in early 2003 24 . The major compilation elements that impact on the international comparability of CPIs are: • scope/coverage - reference population - types of expenditure and transactions - types of price • basic data - weighting data and frequency of weight revisions - item selection - outlet selection - price collection methods - frequency and timing - item/product specification • index calculation - elementary aggregation - index aggregation - alignment of expenditure and price reference base - chaining re-weighted indices • treatment of - missing price observations - seasonal items - quality change - owner occupied housing These elements are discussed in the remaining sections of this Part. Download 465.51 Kb. Do'stlaringiz bilan baham: |
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