Teo Dataset is available upon request on the http://www.reseau-quetelet.cnrs.fr/spip/?lang=en The file is distributed free of charge for use in research. Files : database_DR.sas : program for creation of main variables (SAS) prog union1_DR.do: model for first union formation (Stata) prog cohab1_DR.do: model for first cohabitation (Stata) prog dmar_DR.do: model for first direct marriage (Stata) prog coh_mar_DR.do: model for transition from cohabitation to marriage (Stata)