We use Swiss data to test whether intergenerational educational mobility is affected by the age at which children first enter (primary) school. Early age at school entry significantly affects mobility and reduces the relative advantage of children of better educated parents.

We use census data on 26 Swiss cantons to determine the association of educational institutions with the intergenerational transmission of education. We test whether education transmission is higher when children enter kindergarten and school earlier and when tracking occurs at a later age. In...