The early years from birth to age 8 are a crucial period for children's learning and development. High-quality early childhood education and care (ECEC) and continuity from ECEC into school provide children with a strong foundation for lifelong learning. Understanding how language and cognition skills develop during this period of a child's life…

Past estimates of the effect of family income on child development have often been plagued by endogeneity and measurement error. In this paper, we use two simulated instrumental variables strategies to estimate the causal effect of income on children's math and reading achievement. Our identification derives from the large, non-linear changes…