Supplemental material
Research Article
The changing relationship between socio-economic background and family formation in four European countries
Jarl E. Mooyaart1 Netherlands Interdisciplinary Demographic Institute;2 University of Groningen
https://orcid.org/0000-0001-5504-2935
https://orcid.org/0000-0001-5504-2935, Aart C. Liefbroer1 Netherlands Interdisciplinary Demographic Institute;2 University of Groningen;3 University Medical Centre Groningen (UMCG);4 VU University Amsterdamhttps://orcid.org/0000-0002-7884-3150
https://orcid.org/0000-0002-7884-3150 & Francesco C. Billari5 Bocconi Universityhttps://orcid.org/0000-0003-4717-6129
https://orcid.org/0000-0003-4717-6129