Using Analysis of Gini (ANoGi) for Detecting Whether Two Sub-Samples Represent the Same Universe: The SOEP Experience

Joachim Frick, Jan Goebel, Edna Schechtman (), Gert Wagner and Shlomo Yitzhaki
Additional contact information
Edna Schechtman: Ben Gurion University

No 1049, IZA Discussion Papers from Institute of Labor Economics (IZA)

Abstract: A particular shortcoming of panel surveys is potential bias arising from selective attrition. Based on data from the German Socio-Economic Panel Study (SOEP) we analyze potential artifacts (level, structure, inequality of income) by comparing results from two independently drawn panel sub-samples, started in 1984 and 2000, respectively. Both sub-samples carried on using the same set of follow-up rules. We apply ANOGI (ANalysis Of GIni) techniques, the equivalent of ANOVA (ANalysis Of VAriance) performed on the basis of the Gini coefficient. The decomposition followed is presented in Yitzhaki (1994). We rearrange, reinterpret and use the decomposition in the comparison of sub-populations from which the different subsamples were drawn. Taking into account indicators for income, and for control purposes those for education and satisfaction as well, significant differences between these two subsamples with respect to (income) inequality are found in the first year, which start to fade away in wave 2 and disappear in wave 3. We find credible indication for these differences to be driven by changes in response behavior of short term panel members rather than by attrition among members of the longer running sub-sample.

Keywords: panel studies; inequality decomposition; survey research; Gini; ANOGI (search for similar items in EconPapers)
JEL-codes: C81 D31 D63 (search for similar items in EconPapers)
Pages: 41 pages
Date: 2004-03
New Economics Papers: this item is included in nep-dev and nep-ecm
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (31)

Published - published in: Sociological Methods and Research, 2006, 34 (4), 427-468

Downloads: (external link)
https://docs.iza.org/dp1049.pdf (application/pdf)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:iza:izadps:dp1049

Ordering information: This working paper can be ordered from
IZA, Margard Ody, P.O. Box 7240, D-53072 Bonn, Germany

Access Statistics for this paper

More papers in IZA Discussion Papers from Institute of Labor Economics (IZA) IZA, P.O. Box 7240, D-53072 Bonn, Germany. Contact information at EDIRC.
Bibliographic data for series maintained by Holger Hinte ().