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Household Income and Expenditure Survey 2008

Samoa, 2008
Reference ID
WSM_2008_HIES_v01_M
Producer(s)
Bureau of Statistics
Metadata
DDI/XML JSON
Created on
Apr 12, 2012
Last modified
Mar 29, 2019
Page views
142
Downloads
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  • Identification
  • Scope
  • Coverage
  • Producers and sponsors
  • Sampling
  • Survey instrument
  • Data collection
  • Data appraisal
  • Contacts
  • Metadata production

    • Identification

    Survey ID number
    WSM_2008_HIES_v01_M
    Title
    Household Income and Expenditure Survey 2008
    Country
    Name Country code
    Samoa WSM
    Study type
    Income/Expenditure/Household Survey [hh/ies]
    Series Information
    The 2008 Household Income and Expenditure Survey (HIES) is the third such survey conducted by the Samoa Bureau of Statistics since the first one in 1997.
    Abstract
    The 2008 HIES collects information on Income and Expenditure of each sampled household in order to provide information on the economic characteristics of all households in Samoa. The main objectives of this survey are:
    - To adjust the weights of the Consumer Price Index (CPI) using the household expenditure pattern of Samoan households and
    - To provide data to determine the extent of hardship and the vulnerability of households in Samoa

    This undertaking was funded by the Government of Samoa, with technical assistance provided by the Asian Development Bank through the services of Mr. David Abbott
    Kind of Data
    Sample survey data [ssd]
    Unit of Analysis
    - Households
    - Individuals

    Scope

    Notes
    • Household Identification Particulars
    • Household Demographic Characteristics
    • Wages and salaries
    • Self employment and other Business Activities
    • Previous Jobs
    • Pensions/Welfare Benefits
    • Other Income
    • Loan Information
    • Contribution to Benefit Scheme
    • Dwelling Characteristics
    • Household Possession
    • Dwelling Tenure
    • Construction and Improvements of Dwelling
    • Household Bills
    • Transport Expenses
    • Acquisition of Major Durables
    • Education, Recreation, and Sport
    • Medical and Health Expenses
    • Overseas Travel
    • Special Events
    • Agriculture, Livestock, Fishing, and other Sales
    • Household Consumption and Expenditure

    Coverage

    Geographic Coverage
    National

    Producers and sponsors

    Primary investigators
    Name Affiliation
    Bureau of Statistics Government of Samoa
    Producers
    Name Role
    Asian Development Bank Technical assistance
    Funding Agency/Sponsor
    Name Role
    Government of Samoa Funding

    Sampling

    Sampling Procedure
    Survey Methodology
    The sampling technique used for the 2008 HIES is a stratified single stage cluster design. The first stage involved the selection of the Enumeration Area (EA) using Probability Proportional to Size (PPS) while the second stage involved the selection of a fixed cluster size.

    To achieve a 10% sample of households, every tenth household was selected with a cluster size of 10 for North West Upolu, Rest of Upolu, and Savaii, and a cluster size of 5 for Apia Urban Area. Due to some variation in the number of households since the last population census in 2006 in which the frame was based, and the 2008 situation, the proportions of sampled households in the frame does not come to the required sample size.
    Weighting
    Weights
    - Apia Urban Areas – 13.879960
    - North West Upolu – 12.177931
    - Rest of Upolu – 11.597364
    - Savaii - 12.680927

    Only those cases or households with Interview Status = 1 (completed) have weights.

    Survey instrument

    Questionnaires
    The 2008 Household Income and Expenditure Survey questionnaire consists of four forms:
    i) Household Control Form
    ii) Household Form
    iii) Individual Questionnaire
    iv) Diary

    Data collection

    Dates of Data Collection
    Start End
    2008-08 2008-09
    Data Collection Notes
    The field work was organized in two rounds. From 4 to 31 August 2008, half of the selected households were enumerated. The other half of the selected households was enumerated from 1 to 28 September 2008.

    Data appraisal

    Estimates of Sampling Error
    Accuracy and reliability of estimates in a survey such as HIES are measured by computing the sampling errors, specifically standard errors and coefficient of variations. Although survey estimates are subject to both sampling and non sampling errors, only sampling errors can be calculated. Non sampling errors are minimized by means of quality control and operational control measures in all phases of the survey. In practice, estimates with coefficient of variations (CV) of less than 20% are considered as statistically ‘accurate’. On the other hand, those estimates with (CV) more than 20% are ‘indicative’ and should not be used at face value.

    Note: Standard errors and coefficient of variation for key variables are presented in Appendix 2 of the 2008 HIES final report.

    Contacts

    Contacts
    Name Affiliation Email
    Carolina Diaz-Bonilla GPVDR cdiazbonilla@worldbank.org

    Metadata production

    DDI Document ID
    DDI_WSM_2008_HIES_v02_M
    Producers
    Name Affiliation Role
    Development Economics Data Group The World Bank Ducumentation of the DDI
    Date of Metadata Production
    2012-03-21

    Metadata version

    DDI Document version
    Version 02: (December 2015): Adaptation of Version 01 (March 2012). Data, UNDP report and questionnaires - provided by GPVDR team.
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