“…To test whether the transmission of inequalities from parents to children is indeed influenced by norms on intrafamilial relationsincluding rules of inheritance, expectations regarding intrafamilial support, and the relative agency of womenthese familial arrangements need to be measured. Recently, several historical categorizations and specific measures of family systems across the globe have been developed (Carmichael & Rijpma, 2017;Duranton, Rodríguez-Pose, & Sandall, 2009;Kok, 2017;Rijpma & Carmichael, 2016;Szołtysek, Klüsener, Poniat, & Gruber, 2017;Szołtysek & Poniat, 2018). These, too, will enhance our understanding of social homogamy in the past.…”