Producer price indices volume 2002, Supplement 2
Consumer expenditure survey
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- 2.10.2 Frequency of revising/updating weights
Consumer
expenditure survey National Accounts Frequency of update (years) Canada 1996 4 Mexico 1989 2 (in the future) United States 1993-95 average 2 (from 2002) Australia 1998-99 5 Japan 2000 5 Korea 2000 5 New Zealand 1997-98 Some annual revision Austria 2000 5 Belgium 1995-96 When rebasing Czech Republic 1999 5 Denmark 1996 Combined with CES 4-5 Finland 2000 5 France Revised annually Annually Germany 1995 5 Greece 1998-99 5 Hungary Revised annually Annually Iceland Revised annually Annually Ireland 1999-00 5 Italy Revised annually Annually Luxembourg 1993 .. Netherlands 1995 5 Norway Revised annually Annually Poland Revised annually Annually Portugal 1994-95 5 Slovak Republic 2000 Combined with CES 5 Spain 2000-01 5 (from 2002) Sweden Revised annually Combined with CES Annually Switzerland 1998 Annually (from 2002) Turkey 1994 5 United Kingdom Revised annually Annually ..: metadata are not available 2.10.2 Frequency of revising/updating weights The consumption habits of a given group of households, which the basket is supposed to represent, change with time. Such changes may be in response to different relative price movements, 32 Obviously, the boundaries between intermediate consumption and HFCE are clouded in HBS data. The purchase of raw materials for the production of goods and services that will ultimately be consumed or bartered by the producing household are in fact recorded as HFCE. 39 Price Indices © 2002 changes in supply, changes in technology, new products being introduced, changes in tastes and fashions and changes in standards of living. These changes bring with them a gradual shift in consumer preferences. Furthermore, consumers must continuously adjust their spending habits for changing market conditions. All of these factors necessarily have an impact on household consumption expenditures. In practice, the sample of goods and services is chosen to reflect the spending patterns of the reference population at a given time, the weight base of the index. These often refer to specific socio-economic groups in the country. The items chosen are clearly defined and remain unchanged throughout the life of the index. When the weighting pattern is revised, the sample of goods and services and outlets are revised as well so as to reflect new spending patterns. The ILO guidelines state that weights should be examined periodically to determine whether they still adequately reflect current expenditure patterns. Where changes have occurred, the weights should be revised. The guidelines state that weights should in any case be revised every ten years. The ILO guidelines also state that whenever the composition and/or weighting pattern of the index is changed the new index should be linked to the old index to provide a continuous time series. There is considerable variation in the frequency with which weights are updated. In several OECD Member countries this is done each year, while in others updating is much less frequent. Table 6 also shows the frequency of weight revision in OECD Member countries. Download 465.51 Kb. Do'stlaringiz bilan baham: |
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