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A comparison of EPI sampling, probability sampling, and compact segment sampling methods for micro and small enterprises

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  • Chao, Li-Wei
  • Szrek, Helena
  • Peltzer, Karl
  • Ramlagan, Shandir
  • Fleming, Peter
  • Leite, Rui
  • Magerman, Jesswill
  • Ngwenya, Godfrey B.
  • Sousa Pereira, Nuno
  • Behrman, Jere

Abstract

Finding an efficient method for sampling micro- and small-enterprises (MSEs) for research and statistical reporting purposes is a challenge in developing countries, where registries of MSEs are often nonexistent or outdated. This lack of a sampling frame creates an obstacle in finding a representative sample of MSEs. This study uses computer simulations to draw samples from a census of businesses and non-businesses in the Tshwane Municipality of South Africa, using three different sampling methods: the traditional probability sampling method, the compact segment sampling method, and the World Health Organization's Expanded Programme on Immunization (EPI) sampling method. Three mechanisms by which the methods could differ are tested, the proximity selection of respondents, the at-home selection of respondents, and the use of inaccurate probability weights. The results highlight the importance of revisits and accurate probability weights, and the lesser effect of proximity selection on the samples' statistical properties.

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Bibliographic Info

Article provided by Elsevier in its journal Journal of Development Economics.

Volume (Year): 98 (2012)
Issue (Month): 1 ()
Pages: 94-107

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Handle: RePEc:eee:deveco:v:98:y:2012:i:1:p:94-107

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Web page: http://www.elsevier.com/locate/devec

Related research

Keywords: Entrepreneurship; Sampling methods; Informal sector; Health; Self employment; Micro and small enterprises;

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  1. Dohmen, Thomas J. & Falk, Armin & Huffman, David & Sunde, Uwe & Schupp, Jürgen & Wagner, Gert G., 2009. "Individual risk attitudes: Measurement, determinants and behavioral consequences," Munich Reprints in Economics 20049, University of Munich, Department of Economics.
  2. Suresh de Mel & David McKenzie & Christopher Woodruff, 2008. "Returns to Capital in Microenterprises: Evidence from a Field Experiment," The Quarterly Journal of Economics, MIT Press, vol. 123(4), pages 1329-1372, November.
  3. McPherson, Michael A., 1996. "Growth of micro and small enterprises in southern Africa," Journal of Development Economics, Elsevier, vol. 48(2), pages 253-277, March.
  4. McKenzie, David & Seynabou Sakho, Yaye, 2010. "Does it pay firms to register for taxes? The impact of formality on firm profitability," Journal of Development Economics, Elsevier, vol. 91(1), pages 15-24, January.
  5. de Mel, Suresh & McKenzie, David J. & Woodruff, Christopher, 2009. "Measuring microenterprise profits: Must we ask how the sausage is made?," Journal of Development Economics, Elsevier, vol. 88(1), pages 19-31, January.
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