id	keyword
cpos-601	homogamy
cpos-601	education
cpos-601	absolute
cpos-601	country
cpos-601	composition
cpos-601	cohort
cpos-601	group
cpos-601	inequality
cpos-601	trends
cpos-601	countries
cpos-601	expansion
cpos-601	effects
cpos-601	level
cpos-601	income
cpos-601	gender
cpos-601	schwartz
cpos-601	cross
cpos-601	europe