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Journal of Official Statistics

The Journal of Statistics Sweden

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Sampling Nomads: A New Technique for Remote, Hard-to-Reach, and Mobile Populations

1World Bank – Development Economics Research Group, 1818 H St. NW Washington District of Columbia 20433, U.S.A.

2Institute for Employment Research, Nuremberg, Germany.

3World Bank – Development Economics Research Group, Washington, District of Columbia, U.S.A.

© by Kristen Himelein. This article is distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY-NC-ND 3.0)

Citation Information: Journal of Official Statistics. Volume 30, Issue 2, Pages 191–213, ISSN (Online) 2001-7367, DOI: https://doi.org/10.2478/jos-2014-0013, May 2014

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Livestock are an important component of rural livelihoods in developing countries, but data about this source of income and wealth are difficult to collect due to the nomadic and seminomadic nature of many pastoralist populations. Most household surveys exclude those without permanent dwellings, leading to undercoverage. In this study, we explore the use of a random geographic cluster sample (RGCS) as an alternative to the household-based sample. In this design, points are randomly selected and all eligible respondents found inside circles drawn around the selected points are interviewed. This approach should eliminate undercoverage of mobile populations. We present results of an RGCS survey with a total sample size of 784 households to measure livestock ownership in the Afar region of Ethiopia in 2012. We explore the RGCS data quality relative to a recent household survey, and discuss the implementation challenges.

Keywords: GIS; cluster sampling; pastoralists; livestock surveys


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