School entry regulations lead to differences in the age when children start school. While previous literature estimated the effects of age at school entry for compliers with school entry regulations, we look at non-compliers, namely those who enter school one year before the official entry date....

Fertility rates decline in most developed countries. This is especially true for Germany. Fertility is highly correlated with the skill level of women. The age at school enrolment and therefore the age at graduation depends on the month of birth. Children born before the cut-off date start...