Peru ENNIV 1991: Encuesta Nacional de Hogares Sobre Medición de Niveles de Vida

The 1991 Peru Living Standards Survey (PLSS) or Encuesta Nacional de Hogares Sobre Medición de Niveles de Vida (ENNIV) provides individual level and household level socio-economic data from 2,450 households. The unit of observation for the education, health, labor, fecundity, and migration sections of the survey is the individual; and for housing, consumption, agro-pastoral activities, and home production the unit of observation is the household. All stages of the survey were performed by the Peruvian research enterprise Cuánto S.A., with the technical and financial assistance of the World Bank.

The geographic field of study includes urban areas and rural mountain areas. Urban areas are included because they contain the majority of the Peruvian population, and the rural mountain areas are included because these are historically the most deprived section of the country. The following regions were not included in the sample: the rural coast, the central urban coast (except Metropolitan Lima), the rain forest, and the departments of Ayacucho, Apurimac, and Huancavelica. Two primary reasons for excluding regions were cost and safety.

The sample is multi-stage and independent in each domain of study. In the urban area (including Lima), it is stratified and three-staged. In rural areas with population between 500 and 2000 inhabitants, the sample is stratified and three-staged. In rural areas with a population of less than 500, the sample was drawn in two stages.

A special characteristic of the PLSS surveys is that they provide panel data for household information obtained in the surveys. For example, the 1990 PLSS collected data from the same 727 households that were surveyed in 1985-86. The same potential exists for matching the 1991 data with the 1994 data set, but no data file containing merge codes exist.

All data files and necessary supporting documentation can be downloaded from the Net. To obtain the data, first read the sections describing the formats of the data and documentation, then fill in the 'Data Use Agreement Form', and finally download the data and documents.

• Description of Document Formats

  General description of PDF and PostScript formats

• Description of Data Formats

  General description of ASCII, Stata, and SAS portable data formats

• Documentation for the 1991 Peru ENNIV

  Questionnaires, Codebooks, and other survey documents are available in PDF and PostScript format for downloading.

• Data Agreement Form

  The form states that downloading the data obligates you to cite the source of the data and to send copies of papers to the LSMS Division of the World Bank. The form also requires you to state your name, address, and intended use of the data. Once you have submitted the form, you will be sent to a page containing links to the data files. If your browser doesn't support forms (or fails to forward you to the data page upon completing the form), contact LSMS and you will receive instructions on how to progress to the page with the data files.

Revised 03/31/99