Where you come from shapes what you invent: 40 years of European data reveal the cost of inequality

Societies where family background determines educational attainment pay a price — in the form of inventions that never get made. When talent is blocked by birth, the discoveries that talent might have produced are buried with it. A study examining four decades of records from 36 European countries has now put hard numbers on that long-held intuition.

A research team led by Sarah McNamara at the ZEW — Leibniz Centre for European Economic Research in Germany published the findings in the 2026 issue of Nature, showing that regions where parental background plays a smaller role in determining children's educational outcomes produced significantly more new inventions.

The team tracked how closely the educational attainment of parents and children mirrored each other across 225 European regions over 40 years, then matched those patterns against patent records filed with the European Patent Office.

The team's core question was straightforward: do children of highly educated parents tend to be highly educated themselves, while children of less-educated parents remain so? When the two generations look alike, family origin is steering life outcomes. When they diverge, individuals are advancing on ability rather than background.

As parental influence over children's education weakened, new patents and technologies increased by 4 to 23 percent.

The team ran the same analysis 420 times using different methodological approaches. In nine out of 10 runs, the result held: the less a parent's background determined a child's education, the more new inventions emerged. On average, new technology output rose by about 14 percent.

The size of the effect varied depending on the type of society in which the change occurred.

The gains were largest in places where family background had previously been the dominant force — societies where children from wealthy households advanced while those from poorer ones fell behind, and where birth determined nearly everything. In those settings, even a modest opening of opportunity produced a sharp rise in invention.

In contrast, regions where access to education had long been broadly available saw little additional increase in new technology when opportunities expanded further.

The logic, though counterintuitive at first glance, is simple. In places that had been closed off for a long time, a backlog of people with untapped talent accumulated — individuals whose abilities were suppressed by their circumstances. When the door opens, they emerge all at once and generate new technology.

In places where the path was already open, no such reservoir remains. There are no hidden talents left to unlock, so widening the door further yields little.

Applying the research team's findings to South Korea paints a sobering picture.

According to the Ministry of Statistics' 2025 Social Survey, only one in three people — 29.1 percent — believed hard work could improve their own generation's circumstances. Some 57.7 percent said it could not. More respondents doubted that even the next generation would fare better (54.1 percent) than those who held out hope (29.9 percent).

Education's role as a ladder is also under strain. Ministry of Statistics data show that private tutoring participation reached 75.7 percent in 2025. Seoul recorded the highest rate by region at 66.3 percent, while most areas outside the capital remained below 40 percent.

Innovation is already concentrated in one corner of the country. Data compiled by the Patent Statistics Center of the Korea Intellectual Property Research Institute show that Seoul and Gyeonggi Province accounted for 50.8 percent of all patents registered in 2025.

The research team said such regional disparities were pronounced across Europe as well. In the more developed regions of northwestern Europe, family background played a smaller role in shaping outcomes and invention rates were higher, while the opposite held in less developed southern and eastern Europe. That gap showed no sign of narrowing over the 40-year period studied.

The team also found that within individual countries, the degree to which family origin determined life outcomes varied significantly by region.

DOI: 10.1038/s41586-026-10736-9

McNamara, S., Neidhöfer, G. & Lehnert, P. Intergenerational mobility fosters innovation in Europe. Nature (2026).

Sources: Ministry of Statistics, "2025 Social Survey" and "2025 Survey on Private Education Expenditure for Elementary, Middle and High School Students"; Korea Intellectual Property Office, "2025 Patent Trends in Statistics."