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Chao LW, Szrek H, Peltzer K, Ramlagan S, Fleming P, Leite R, Magerman J, Ngwenya GB, Pereira NS, Behrman J. A Comparison of EPI Sampling, Probability Sampling, and Compact Segment Sampling Methods for Micro and Small Enterprises. J Dev Econ 2012; 98:94-107. [PMID: 22582004 PMCID: PMC3347860 DOI: 10.1016/j.jdeveco.2011.08.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
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reporting purposes is a challenge in developing countries, where registries of MSEs are often nonexistent or outdated.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, but the lesser effect of proximity selection on the samples' statistical properties.
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Affiliation(s)
- Li-Wei Chao
- Population Studies Center, University of Pennsylvania, 3718 Locust Walk, Room 239, Philadelphia, Pennsylvania 19104-6298, U.S.A
- The HIV/AIDS, STIs and TB (HAST) Research Programme, Human Sciences Research Council, Private Bag X41, PRETORIA 0001, South Africa
| | - Helena Szrek
- Centre for Economics and Finance, University of Porto, Rua Roberto Frias, 4200-464 Porto, Portugal
| | - Karl Peltzer
- The HIV/AIDS, STIs and TB (HAST) Research Programme, Human Sciences Research Council, Private Bag X41, PRETORIA 0001, South Africa
| | - Shandir Ramlagan
- The HIV/AIDS, STIs and TB (HAST) Research Programme, Human Sciences Research Council, Private Bag X41, PRETORIA 0001, South Africa
| | - Peter Fleming
- Population Studies Center, University of Pennsylvania, 3718 Locust Walk, Room 239, Philadelphia, Pennsylvania 19104-6298, U.S.A
| | - Rui Leite
- Faculty of Economics, University of Porto, Rua Roberto Frias, 4200-464 Porto, Portugal
| | - Jesswill Magerman
- The HIV/AIDS, STIs and TB (HAST) Research Programme, Human Sciences Research Council, Private Bag X41, PRETORIA 0001, South Africa
| | - Godfrey B. Ngwenya
- The HIV/AIDS, STIs and TB (HAST) Research Programme, Human Sciences Research Council, Private Bag X41, PRETORIA 0001, South Africa
| | - Nuno Sousa Pereira
- Centre for Economics and Finance, University of Porto, Rua Roberto Frias, 4200-464 Porto, Portugal
- University of Porto Business School, Rua de Salazares 842, 4149-002 Porto, Portugal
- Faculty of Economics, University of Porto, Rua Roberto Frias, 4200-464 Porto, Portugal
| | - Jere Behrman
- Population Studies Center, University of Pennsylvania, 3718 Locust Walk, Room 239, Philadelphia, Pennsylvania 19104-6298, U.S.A
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