Social Mobility
What social mobility means
Social mobility is the movement of individuals or families between social positions over time. When someone from a working-class background becomes a senior professional, that's upward social mobility. When a wealthy family's grandchildren end up in average-income jobs, that's downward social mobility.
It's the answer to a simple question: does where you start determine where you end up?
In a society with high social mobility, your parents' position is a weak predictor of yours. In a society with low social mobility, it's a strong one.
Why you should care even if you've never heard this term
Social mobility is the academic name for something most people think about constantly without using the term:
- "How do I get ahead?" — you're asking about upward social mobility
- "Why can't I get promoted?" — you're asking what's blocking your social mobility
- "How do I give my kids a better life?" — you're asking about intergenerational social mobility
- "Why do the same families always seem to be on top?" — you're observing low social mobility
- "How do I earn more respect?" — you're asking about status mobility, a component of social mobility
- "Is hard work actually enough?" — you're questioning the mechanisms of social mobility
Every question about improving your life, advancing your career, building wealth, or earning recognition is fundamentally a question about social mobility.
How it's measured
Researchers measure social mobility by comparing parents and children on dimensions like:
- Income — what you earn versus what your parents earned (adjusted for inflation)
- Occupation — professional status compared across generations
- Education — highest qualification achieved relative to parents
- Wealth — net assets accumulated over a lifetime
- Social status — a composite of all the above, sometimes including cultural markers
The key metric is the intergenerational elasticity — a number between 0 and 1 that captures how strongly a parent's position predicts their child's. Zero means no relationship (perfect mobility). One means perfect inheritance (no mobility at all).
Most developed countries score between 0.3 and 0.5 on income elasticity. But when researchers use broader measures of status — combining wealth, occupation, education, and social markers — the correlation jumps to 0.6–0.8. This is remarkably high, and remarkably stable across time, countries, and political systems.
The uncomfortable finding
The most striking result from social mobility research is not that mobility is low — it's that nothing seems to change it much.
Communist revolutions that explicitly aimed to destroy class hierarchies? The intergenerational correlation barely moved. Massive expansions of public education? Modest effects at best. Welfare states, progressive taxation, affirmative action? They help at the margins, but the core pattern persists.
This is the starting point of the Agency hypothesis: if systems don't explain persistence, something about the individuals and families themselves must. Not genetics — the evidence doesn't support that — but a transmitted mindset. A way of operating in the world that compounds over generations.
Further reading
- The Hungarian Surname Study — a concrete example of elite status persisting through communism and into capitalism, based on Pétri & Révész (2021) in the Journal of Population Economics
- About the Agency project — the hypothesis that mindset, not systems, is the primary driver