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 Swiss data to test whether intergenerational educational mobility is affected by the age at which children enroll in kindergarten. Taking advantage of heterogeneity across cantons we find that early kindergarten enrollment significantly increases educational mobility.

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 Swiss data to test whether intergenerational educational mobility is affected by the age at which children enroll in kindergarten. Taking advantage of heterogeneity across cantons we find that early kindergarten enrollment significantly increases educational mobility.