Variable	Measurement	Era	Code	N	Source
Educational homogamy	Similarity in educational level of marriage partners	1970s	HomogamyEducA_1970s	27	??
		1970s	HomogamyEducB_1970s	48	Smits et. al. 2000

Related topics: Class difference, Sex life
Related themes: Demography, Family

The dataset States of Nations is about characteristics of countries in periods (macro variables). It is part of the World Database of Happiness. Though developed for the identification of societal conditions for happiness, the source can also be used for other purposes.