Research from the United States shows that gaps in early cognitive and non-cognitive ability appear early in the life cycle. Little is known about this important question for developing countries. This paper provides new evidence of sharp differences in cognitive development by socioeconomic...

Extensive research has shown comprehensive early intervention can improve the developmental outcomes of disadvantaged children. However, little is known about the effectiveness of center-based programs for infants and toddlers; relatively rare in the developing world and typically of low...