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Re-weighting South African National Household Survey Data to create a consistent series over time: A cross entropy estimation approach

Nicola Branson and Martin Wittenberg ()

No 54, SALDRU Working Papers from Southern Africa Labour and Development Research Unit, University of Cape Town

Abstract: In the absence of established longitudinal panel surveys in South African, national cross-sectional household survey data are frequently used to analyse change. When these data are stacked side-byside, however, inconsistencies both in time trends and between household and person level data are found. This study uses a new set of weights calibrated to the ASSA 2003 model totals using a cross entropy estimation approach. This approach is favoured because the calculated weights are similar to the initial sample weights (and hence retain the survey design benefits) but match to a series of age-sex-race and province marginal totals that are consistent over time. The weights are publicly available for a fourteen year period between 1994 and 2007. This is a SALDRU/DataFirst Working Paper

New Economics Papers: this item is included in nep-afr and nep-dev
Date: 2011-02
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Journal Article: Reweighting South African National Household Survey Data to Create a Consistent Series Over Time: A Cross-Entropy Estimation Approach (2014) Downloads
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