Intergenerational Mobility and Income Inequality

Intergenerational mobility refers to the extent to which economic status or income level is transmitted from one generation to the next. Low mobility implies strong persistence of advantage or disadvantage, reinforcing income inequality over time. Income inequality captures the dispersion of earnings within a population and shapes opportunities for upward movement. In many countries, a widening income gap has been accompanied by declining prospects for those born into lower-income families. Key drivers include differences in educational access, social networks, wealth accumulation and regional disparities. Persistent inequality undermines social cohesion and economic efficiency, while improved mobility promotes meritocracy and long-term growth. Policy levers such as progressive taxation, targeted education and community investment aim to break cycles of disadvantage and foster equal opportunity on a global scale.

Research from Nature Portfolio

Recent studies have highlighted the pivotal role of social networks in shaping mobility outcomes. By analysing billions of online friendships, researchers have distinguished multiple dimensions of social capital and demonstrated that economic connectedness—measured as links between individuals of differing socio-economic backgrounds—is among the strongest predictors of upward income mobility. Areas with higher rates of cross-class friendships show markedly improved prospects for children from low-income households. Quantitative models estimate that bridging social divides could raise adult incomes by around 20 per cent for economically disadvantaged groups, illuminating a promising avenue for community-based interventions.

Intergenerational Mobility and Income Inequality publication trend

The graph below shows the total number of articles in intergenerational mobility and income inequality across all publications each year (not limited to Nature Index journals).

Technical terms

Intergenerational elasticity: A statistical measure of the relationship between parents’ and children’s incomes, indicating the degree of persistence in economic status.

Social capital: The collective value of social networks and the inclinations that arise from these networks to do things for each other, facilitating cooperation and resource sharing.

Economic connectedness: The strength of ties between individuals of different socio-economic backgrounds, reflecting cross-class interactions within communities.

Upward mobility: The movement of individuals or groups to a higher income or socio-economic position compared to their parents’ generation.

Socio-economic status (SES): A composite measure of an individual’s or family’s economic and social position relative to others, based on income, education and occupation.

References

1. The inheritance of social status: England, 1600 to 2022. Proceedings of the National Academy of Sciences of the United States of America (2023).
2. Race and Economic Opportunity in the United States: an Intergenerational Perspective*. The Quarterly Journal of Economics (2019).
3. Social capital I: measurement and associations with economic mobility. Nature (2022).
4. Wealth as One of the “Big Four” SES Dimensions in Intergenerational Transmissions. Social Forces (2021).