Sampling international migrants with origin-based snowballing method: New evidence on biases and limitations
This paper provides a methodological assessment of the advantages and drawbacks of the origin-based snowballing technique as a reliable method to construct representative samples of international migrants in destination areas. Using data from the MAFE-Senegal Project, our results indicate that this is a very risky method in terms of quantitative success. Besides, it implies some clear selection biases: it over-represents migrants more strongly connected to their home country, and it tends to overestimate both poverty in households at origin and the influence of previous migration experiences of social networks on individuals’ out-migration.
References listed on IDEAS
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- David J. McKenzie & Johan Mistiaen, 2009.
"Surveying migrant households: a comparison of census-based, snowball and intercept point surveys,"
Journal of the Royal Statistical Society Series A,
Royal Statistical Society, vol. 172(2), pages 339-360.
- McKenzie, David J. & Mistiaen, Johan, 2007. "Surveying migrant households : a comparison of census-based, snowball, and intercept point surveys," Policy Research Working Paper Series 4419, The World Bank.
- McKenzie, David & Mistiaen, Johan, 2007. "Surveying Migrant Households: A Comparison of Census-Based, Snowball, and Intercept Point Surveys," IZA Discussion Papers 3173, Institute for the Study of Labor (IZA).
- Stillman, Steven & McKenzie, David & Gibson, John, 2009. "Migration and mental health: Evidence from a natural experiment," Journal of Health Economics, Elsevier, vol. 28(3), pages 677-687, May.
- Steven Stillman & David McKenzie & John Gibson, 2006. "Migration and Mental Health: Evidence from a Natural Experiment," Working Papers in Economics 06/04, University of Waikato.
- Stillman, Steven & McKenzie, David & Gibson, John, 2007. "Migration and mental health : evidence from a natural experiment," Policy Research Working Paper Series 4138, The World Bank.
- John Gibson & David McKenzie & Steven Stillman, 2006. "Migration and mental health: Evidence from a natural experiment," Natural Field Experiments 00334, The Field Experiments Website.