Do the perils of universal child care depend on the child's age? /

The rising participation of women in paid work has not only heightened demand for universal early education and care programs but also led to increased use of child care amongst children at earlier ages. Prior research investigating Quebec's universal highly-subsidized child care documented signifcant declines in a variety of developmental outcomes for all children aged 0-4 years. However, past analysis has not explored whether these effects vary for children of different ages. In this paper, we demonstrate substantial heterogeneity in policy impacts by child age. Children who gain access to subsidized child care at earlier ages experience signiffcantly larger negative impacts on developmental scores, health and behavioral outcomes. The sole exception is the negative relationship between access to subsidized child care and hyperactivity scores which steepens with child age. Our analysis additionally provides signifcant evidence of treatment effect heterogeneity within ages, and reveals benefits from access to universal child care on developmental scores for those that are above three years of age.