Many parents return to work, placing their child in nonparental care before the age of one. Using variations in daycare vacancy rates, we estimate the causal effects of enrollment age in universal daycare on child development. In general, we find no evidence that earlier enrollment harms early...

A large share of young mothers return to work before their child turns one year. Exploiting exogenous variation in daycare vacancy rates, we estimate the causal effects of enrollment age in universal daycare on child development for children younger than two years. We find modest effects of...