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National Income Dynamics Study Secure Data 2014-2015
Wave 4

South Africa, 2014 - 2015
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Reference ID
zaf-saldru-nidssd-2014-2015-v2.0.0
DOI
https://doi.org/10.25828/nrhz-f650
Producer(s)
Southern Africa Labour and Development Research Unit,
Collections
Remote Access Data Enclave
Metadata
DDI/XML JSON
Created on
Aug 24, 2018
Last modified
Feb 19, 2026
Page views
690675
Downloads
1858
  • Identification
  • Version
  • Scope
  • Coverage
  • Producers and sponsors
  • Data collection
  • access_policy
  • Disclaimer and copyrights
  • Contacts
  • Metadata production
  • Citation

    • Identification

    Survey ID number
    zaf-saldru-nidssd-2014-2015-v2.0.0
    Title
    National Income Dynamics Study Secure Data 2014-2015
    Subtitle
    Wave 4
    Abbreviation or Acronym
    NIDSSD 2014-2015
    Country
    Name Country code
    South Africa zaf
    Study type
    Household Survey
    Abstract
    The National Income Dynamics Study (NIDS) is a face-to-face longitudinal survey of individuals living in South Africa as well as their households. The survey was designed to give effect to the dimensions of the well-being of South Africans, to be tracked over time. At the broadest level, these were:
    Wealth creation in terms of income and expenditure dynamics and asset endowments;
    Demographic dynamics as these relate to household composition and migration;
    Social heritage, including education and employment dynamics, the impact of life events (including positive and negative shocks), social capital and intergenerational developments;
    Access to cash transfers and social services

    Wave 1 of the panel survey, conducted in 2008, collected the detailed information for the national sample.
    Waves 2 to 4 of the panel survey re-interviewed respondents interviewed in previous waves, gathering information on developments in their lives over the years.
    Kind of Data
    Sample survey data [ssd]
    Unit of Analysis
    The units of analysis in the survey are individuals and households.

    Version

    Version Description
    v2.0.0: Edited, partially anonymised dataset for use in DataFirst's Secure Research Data Centre
    Version Date
    2018-08-13
    Version Notes
    Version 1 of the National Income Dynamics Study wave 4 2014-2015 public release dataset was produced on the 12th of May 2016

    CHANGES IN VERSION 1.1

    Version 1.1 had changes to the weights variables, w3_pweight in the indderived data file and the w3_wgt in the hhderived data file. Changes to these variables were necessary because:
    1.Panel weights were missing for some babies born to CSM mothers after Wave 1 (2008)
    2. The weight was missing for one (now adult) respondent

    CHANGES IN VERSION 2.0.0
    Version 2.0.0 of NIDS wave 4 includes changes to the number of individuals and households in each data file, largely driven by previously incorrect classification of TSM/CSM status, duplicate interviews and additional baby CSMs not captured in a previous version of this wave. Version 2.0.0 also contains new and renamed variables, and there are changes to the survey weights. For details on these changes please see the document Wave 4 Changes between V1.1 and V2.0.0 which is provided with the data.

    Scope

    Notes

    Data on the following topics was collected during the panel survey:
    HOUSEHOLD: Household characteristics, household roster, mortality history, living standards, expenditure, consumption, negative events, positive events, agriculture
    ADULTS: Demographics, education, labour market participation, income, health, well-being, numeracy, anthropometric data
    CHILDREN: Education, health, family support, grants, anthropometric data, numeracy
    The Secure (Restricted access) data files contain confidential variables that are not released in the publicly available data. The secure variables include the primary sampling unit (PSU), date of birth day, and full geo-codes. Employment codes are provided up to the four digit level, and a code-list for these is available with the data. A complete list of variables available in the restricted-access data is provided with the data.

    Keywords
    Agriculture Shocks Demography Intra-household allocation Health Education Migration Remittances Integration Credit Assets Social networks Social cohesion

    Coverage

    Geographic Coverage
    The survey had national coverage
    Geographic Unit
    The Secure (restricted access) version of the NIDS Wave 4 2014-2015 data includes household-level geo-codes. This version is available in DataFirst's Secure Research Data Centre at the University of Cape Town
    Universe
    The target population for NIDS was private households in all nine provinces of South Africa, and residents in workers' hostels, convents and monasteries. The frame excludes other collective living quarters, such as student hostels, old age homes, hospitals, prisons and military barracks.

    Producers and sponsors

    Primary investigators
    Name Affiliation
    Southern Africa Labour and Development Research Unit University of Cape Town
    Producers
    Name Affiliation Role
    Department of Planning, Monitoring and Evaluation Government of South Africa Commissioners of Wave 4
    Funding Agency/Sponsor
    Name Abbreviation Role
    Department of Planning, Monitoring and Evaluation Presidency, Government of South Africa Funding Agency

    Data collection

    Dates of Data Collection
    Start End Cycle
    2014 2015 Wave 4
    Data Collection Mode
    • Face-to-face [f2f]
    Supervision
    National Income Dynamics Study (NIDS) supervisory staff

    access_policy

    Access authority
    Name Affiliation URL Email
    DataFirst University of Cape Town support@data1st.org
    Confidentiality
    Is signing of a confidentiality declaration required? Confidentiality declaration text
    yes Registering to use the NIDS data includes agreement that the data user will not attempt to identify specific individuals from the data.
    Access conditions
    Secure Research Data Centre access https://www.datafirst.uct.ac.za/services/secure-data-services
    Citation requirements
    Southern Africa Labour and Development Research Unit. National Income Dynamics Study Secure Data 2014-2015, Wave 4 [dataset]. Version 2.0.0. Pretoria: SA Presidency [funding agency]. Cape Town: Southern Africa Labour and Development Research Unit [implementer], 2018. Cape Town: DataFirst [distributor], 2018. DOI: https://doi.org/10.25828/nrhz-f650

    Disclaimer and copyrights

    Disclaimer
    The original collector of the data (The National Income Dynamics Study), the distributor (DataFirst), and the relevant funding agencies bear no responsibility for use of the data or for interpretations or inferences based upon such uses.

    Contacts

    Contacts
    Name Affiliation Email URL
    DataFirst Helpdesk University of Cape Town support@data1st.org

    Metadata production

    Producers
    Name Abbreviation Affiliation Role
    DataFirst DataFirst University of Cape Town Metadata producer
    Date of Metadata Production
    2026-02-19

    Metadata version

    DDI Document version
    Version 7

    Citation

    Citation
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