The U-turn in educational inequality. Why a multidimensional approach matters for measuring social inequalities in tertiary educational attainment

This study examines the evolution in the association between social origins and tertiary educational attainment in Belgium, from post-World War II to the millennium’s onset. For this, we rely on a multidimensional measurement of social origins that accounts for interaction mechanisms between parental class and educational resources. We analyse 13,803 individuals over four birth cohorts. In contrast to previous studies, we find a decline in social inequalities for cohorts born before 1975, followed by a resurgence among those born afterwards. This U-turn in social inequalities of tertiary educational attainment is only observable when social origins are measured multidimensionally. Additionally, we investigate the interaction effects between parental resources, revealing divergent evolutions in accumulation and compensation mechanisms. Our findings underscore the renewed importance of combining parental education with parental social class for generations born after 1975.