General Data Dissemination System
|I. Data Characteristics|
5.1.1 Statistical presentation
“Monthly review of price indices (2000-01=100)” publishes the latest two months’ CPI series, and the corresponding latest month of the previous year. The price indices series are shown with breakdowns by major groups and their group weights. Data also include monthly indices for (1) the latest thirteen months,
“Monthly Statistical Bulletin” publishes detailed data for the reference period on CPI showing: (1) combined CPI numbers by commodity group for the latest 13 months and the latest five fiscal years, (2) combined CPI index numbers by income groups and commodity groups for the latest month, (3) CPI by city/income group and combined category of employees, (4) intercity consumer prices of the last month for detailed commodities in the CPI basket, (5) intercity prices of construction input items and labor wages for the latest month, and (6) annual data for support/procurement prices of agricultural commodities for the last 8 years.
2.1.1 Concepts and definitions
The consumer price index (CPI) measures changes in the cost for households of buying a representative fixed basket of goods and services.
Scope of the data
The consumer price index series are Laspeyres indices (2000-01=100). The series cover 35 urban centers (large, medium, and small) that represent about 68% of the total population.
Indices are published cross classified by four income groups and four occupational categories combined (industrial workers, commercial employees, government employees, self-employed and employers). In addition, data by geographic areas are given.
The FBS also compiles and publishes a Sensitive Price Indicator (SPI) to assess on a weekly basis the short term price movements of 53 essential commodities in 17 major cities. The SPI is computed for industrial workers, commercial employees and government employees belonging to the lowest income groups.
Exceptions to coverage
Excluded are defense personnel and households whose main income consists of transfers.
Seasonally adjusted data are not published but may be compiled.
Indices are published for the following functional categories:
2.4.2 Recording basis
3.1.1 Source data collection programs
Prices for 374 representative items are collected of which the manufacture items are classified according to the Pakistan Standard Industrial Classification. Depending upon the size of the urban centre, 1 to 13 markets have been selected in which prices are collected; the total number of markets covered is 71. For 53 essential items, weekly prices are collected. The prices of other items are collected once a month, but more frequently if large price swings are noted. Four price quotes for each item are recorded through personal visits to the selected outlets. Approximately 106210 price quotes are collected from 35 urban centers covering 71 markets. The collected prices reflect actual transactions and are valued inclusive of taxes.
3.3.2 Other statistical procedures
Weights for the indices were derived from the 2000-01 Family Budget Survey, which had a sample size of 42000 households and recorded expenditures over the period of a year (that is, 10000 households were surveyed in each quarter). The weights of seasonal items that are temporarily not available are deleted from the calculations. Totally new items do not enter the CPI between two base years, except as a replacement for discontinued items.
The prices of items missing temporarily are carried forward. If the item is missing for more than two months, a replacement is sought. Possible quality differences between the original item and its replacement are removed by imputing a base year price for the replacement item. If no replacement item can be found, the weight of the original item is distributed over the other items.
3.4.2 Assessment of intermediate data
Data are disseminated on the 11th day of the following month.
|Documentation of Methodology
5.2.1 Dissemination of documentation on concepts, scope, classifications, basis of recording, data sources, and statistical techniques
FBS’s “Brochure of Federal Bureau of Statistics, 2001-2000” publishes methodology statements for various statistics compiled and disseminated by FBS, including methodology for price indices.
Data to Support Cross-checks and Assurance of Reasonablenes
4.2.1 Internal consistency
4.2.2 Temporal consistency
4.2.3 Intersectoral and cross-domain consistency
|III. Plans for Improvement|
Plans for improvement - Short-term
Technical Assistance/Financing Needs/Other Prerequisites
|IV. Dissemination Formats|
“Monthly Review of Price Indices (2000-01=100)” (English)
“Monthly Statistical Bulletin” (English)
Available on request, for a fee.