What Mobility Policy Can See—and Miss

The Norwegian evidence is strong enough to change the question, but not broad enough to stand in for every country. This chapter places the study’s family-level social position beside the OECD’s cross-country account of intergenerational mobility, then turns the comparison into a policy distinction among resources, credentials, and access to high-opportunity environments. The goal is not a universal recipe. It is a better way to judge what an intervention is actually equalizing and what may remain outside its reach.

From one national case to several dimensions of mobility

The OECD publication defines intergenerational social mobility as the relationship between parents’ socioeconomic status and the status their children achieve as adults. Using the OECD Survey of Adult Skills, or PIAAC, it examines at least three outcomes: earnings, educational attainment, and women’s labor-market participation. That broader frame matters because a society can look mobile on one dimension and persistent on another.

The publication’s abstract reports a recurring pattern across the countries covered. People with highly educated parents generally receive an earnings premium, while those with less-educated parents face an earnings penalty. Parental education is also associated with educational attainment and with women’s participation in the labor market; the association is particularly visible when mothers have lower levels of education. These findings do not produce one universal mobility score. They show that family background can enter adult life through skills, credentials, labor-market participation, and income.

The OECD evidence also adds an important qualification to the education story. In many countries, the influence of parental background diminishes once a person’s own education is accounted for. Education and skills are therefore important transmission channels. But in several countries, parental background still affects economic outcomes among people with similar levels and fields of education. Equal credentials can coexist with different returns, pathways, or opportunities.

That qualification is the bridge to the Norwegian study. The IZA/LISER paper measures a more specific family-level social position than an education-only survey can. It asks whether positions in selective institutions, occupations, firms, and residential settings predict children’s adult outcomes after income, education, and cognitive ability are considered. The OECD publication does not validate the Norwegian index in every country, and the Norwegian paper does not supply a cross-country estimate. Together, however, they support a layered conclusion: education can reduce some background differences, while social position and institutional access may still matter after educational attainment is equalized.

flowchart LR C[Country and institutional context] --> IO[Income-only lens] C --> EA[Education-adjusted lens] C --> MD[Multidimensional social-position lens] R[Income and wealth resources] --> IO K[Child education and skills] --> EA S[Social position and institutional access] --> MD IO --> O[Earnings and other adult outcomes] EA --> O MD --> O O --> W[Women\'s labor-market participation] O --> A[Educational attainment] O --> B[Remaining parental-background associations]

The three lenses are not mutually exclusive policies or rival theories. Income and wealth remain relevant resources. Education and skills remain important routes through which background effects can shrink.