In this paper we evaluate the impact of a major school reform, that took place in the 1950s in Sweden, on educational attainment and earnings. The reform, which has many common elements with reforms in other European countries including the UK, consisted of increasing compulsor schooling, imposing a national curriculum and abolishing selectionby ability into Academic and non-academic streams at the age of 12 (comprehensive school reform). Our data combines survey data with administrative sources. We find that the reform increased both the educational attainment and the earnings of children whose fathers had just complusory education. However the earnings of those with educated parents declined - possibly because of a dilution of quality at the top end of the education levels. The overall effect of the reform was however positive. In this paper we evaluate the impact of a major school reform, that took place in the 1950s in Sweden, on educational attainment and earnings. The reform, which has many common elements with reforms in other European countries including the UK, consisted of increasing compulsor schooling, imposing a national curriculum and abolishing selectionby ability into Academic and non-academic streams at the age of 12 (comprehensive school reform). Our data combines survey data with administrative sources. We find that the reform increased both the educational attainment and the earnings of children whose fathers had just complusory education. However the earnings of those with educated parents declined - possibly because of a dilution of quality at the top end of the education levels. The overall effect of the reform was however positive.

We use prenatal exposure to Chernobyl fallout in Sweden as a natural experiment inducing variation in cognitive ability. Students born in regions of Sweden with higher fallout performed worse in secondary school, in mathematics in particular. Damage is accentuated within families (i.e., siblings comparison) and among children born to parents with low education. In contrast, we detect no corresponding damage to health outcomes. To the extent that parents responded to the cognitive endowment, we infer that parental investments reinforced the initial Chernobyl damage. From a public health perspective, our findings suggest that cognitive ability is compromised at radiation doses currently considered harmless.

We study the importance of the extended family – the dynasty – for the persistence in inequality across generations. We use data including the entire Swedish population, linking four generations. This data structure enables us to identify parents' siblings and cousins, their spouses, and the spouses' siblings. Using various human capital measures, we show that traditional parent-child estimates of intergenerational persistence miss almost one-third of the persistence found at the dynasty level. To assess the importance of genetic links, we use a sample of adoptees. We then find that the importance of the extended family relative to the parents increases.