Cook Islands (Rarotonga)
Official title
Retail Price Index.
Scope
The index is computed quarterly and relates to employees'
households.
Official base
2nd quarter 1967 = 100.
Source of weights
The weights and selected items were derived from a household
expenditure survey conducted in May 1967 among an ad hoc selection of
employees' households (excluding agricultural
workers) in which the head of the family had an average weekly income
of between 4 and 20 Pounds at the time of the survey. (Of the 156
budgets analysed, the heads of 99 households received between
4 and 6 Pounds a week).
Weights and composition
| Major groups
| Number of items
| Weights
| Approximate number of price quotations
|
| Food
| 76 | 58.4 | ...
|
| Tobacco and alcohol
| 5 | 6.8 | ...
|
| Housing
| 11 | 3.1 | ...
|
| Household operation
| 51 | 9.6 | ...
|
| Clothing and footwear
| 48 | 12.4 | ...
|
| Transport
| 10 | 5.7 | ...
|
| Miscellaneous
| 36 | 4.0 | ...
|
| Total
| 237 | 100.0 | ...
|
Household consumption expenditure
Not available.
Method of data collection
Prices are collected by agents during the third and fourth weeks
of February, May, August and November from five main shopping
centres in Rarotonga.
Housing
Not available.
Specification of varieties
Not available
Substitution, quality change, etc.
Not available.
Seasonal items
Not available.
Computation
The index is computed according to the Laspeyres formula as a
weighted arithmetic average with fixed base, using weights
corresponding to the base period.
Other information
A new series (base June 1989 = 100) is now computed but the relevant
methodological information was not available in the ILO at the time the
present volume was published.
Organisation and publication
Statistical Office: Quarterly Statistical Bulletin
(Rarotonga).
Government of Cook Islands: Rarotonga Retail Price
Index
(Rarotonga, 1967).