The Great Gatsby Curve: Why high inequality traps social mobility

Science · Published 29 October 2026 Swipe more like this →

In short: In many nations, your parents' income acts as a ceiling for your own potential. This phenomenon is captured by the Great Gatsby Curve, which reveals a troubling correlation: countries with higher levels of wealth inequality often suffer from lower intergenerational mobility, making it harder for children to move up in life.

The Great Gatsby Curve describes the positive relationship between cross-sectional income inequality and the persistence of income across generations. In simpler terms, when a society has a massive gap between the rich and the poor, it becomes significantly harder for individuals to change their socioeconomic status compared to their parents. This observation was first highlighted by Miles Corak in 2013 and later dubbed 'The Great Gatsby Curve' by Krueger in 2012 based on data from OECD economies. The concept measures rank-rank intergenerational immobility against the Gini Coefficient. This specific metric allows researchers to compare how different nations handle wealth distribution.

Economists study this because it suggests that high inequality of outcomes is not balanced out by equality of opportunity. In the United States, research indicates that these dynamics are often mediated by social influences and socioeconomic segregation. These factors create nonlinearities in how income is transmitted from parents to children, effectively creating a cycle where wealth stays concentrated within specific lineages rather than circulating freely through merit. Structural evidence supports these findings regarding the transmission of parental income. Researchers have identified strong empirical support for the mechanisms that drive these socioeconomic effects.

The implications for policy are profound. If inequality of outcomes leads to lower upward mobility, it suggests that the 'American experience'—or any other modern economy—may be failing to provide a level playing field. For instance, in Canada, data shows this curve has been moving upward over time, indicating a growing trend where income immobility is increasingly linked to broader economic inequality. This trend has become a central point in modern political debates. It highlights how persistent wealth concentration can undermine the promise of upward movement.

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