Harmonising French and German administrative DADS-EDP and SIAB data: A practical guide on how to create comparable data sets on maternal employment

Andreas Filser, Pascal Achard, Inga Marie Amend, Corinna Frodermann, Ida Gaede and Sander Wagner
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Andreas Filser: Institute for Employment Research (IAB), Nuremberg, Germany ; Institute for Employment Research, Nuremberg, Germany
Pascal Achard: Paris Dauphine University - PSL, Paris Cedex 16, France
Inga Marie Amend: Institute for Employment Research (IAB), Nuremberg, Germany ; Friedrich-Alexander University Erlangen-Nürnberg (FAU), Nuremberg, Germany ; Institute for Employment Research, Nuremberg, Germany
Corinna Frodermann: Institute for Employment Research (IAB), Nuremberg, Germany ; Institute for Employment Research, Nuremberg, Germany
Ida Gaede: Sciences Po, Centre for Research on Social Inequalities (CRIS), CNRS, Paris, France
Sander Wagner: Nuffield College, University of Oxford, Oxford, UK ; Leverhulme Centre for Demographic Science, University of Oxford, Oxford, UK

Journal for Labour Market Research, 2026, vol. 60

Abstract: "Administrative data are increasingly used in social science research, including for studying the labour market consequences of motherhood. Yet despite the growing use of such data within countries, cross-national comparative research remains limited because administrative data require substantial harmonisation before meaningful comparisons are possible. In this paper, we harmonise two rich administrative data sets suitable for comparative research on maternal employment: the French DADS-EDP and the German SIAB. France and Germany present a compelling case for such comparisons given their differing norms and policies regarding childcare and maternal employment. We document our harmonisation decisions on data structure, sample selection, employment measurement, and key socio-economic variables, and provide the full Stata code as supplementary material. We illustrate the potential of the harmonised data by examining how maternal employment trajectories evolve over time in France, West Germany, and East Germany. The analysis reveals substantial cross-national and temporal variation in employment trajectories after childbirth, highlighting the value of harmonised administrative data for comparative research on maternal employment." (Author's abstract, IAB-Doku) ((en))

Keywords: Bundesrepublik Deutschland; Frankreich; Ostdeutschland; Westdeutschland; Stichprobe der Integrierten Arbeitsmarktbiografien; Berufsverlauf; Datenaufbereitung; Datengewinnung; Erwerbsbeteiligung; Frauenerwerbstätigkeit; internationaler Vergleich; Mütter; prozessproduzierte Daten; regionaler Vergleich; Stichprobenverfahren; Arbeitsmarktforschung; 1997-2021 (search for similar items in EconPapers)
JEL-codes: C81 J13 J16 J21 J22 (search for similar items in EconPapers)
Date: 2026-06-11
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DOI: 10.1186/s12651-026-00430-8

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