SES heritability varies by indicator

Using administrative records for 170,000 Norwegians aged 35–45, researchers decomposed genetic and environmental influences on education, occupational prestige, income, and wealth. They found genetic variation explains more of educational attainment and occupational prestige, while shared family environment explains more of education and wealth, with little commonality from non‑shared environment across the four. Estimates also differed by heritability method, even in the same population. — This shows policies and arguments about 'merit' and inequality must reckon with which SES dimension is under discussion and avoid treating heritability as a single, context‑free number.