Children and Youth Services Review · 2019 · 17 citations · 51 references
EducationEarly Childhood EducationHuman DevelopmentChild DevelopmentEarly Childhood PolicyChild Development PolicyEarly ChildhoodEarly Childhood CurriculumEarly Childhood Education PolicyAccess To Early Childhood Education
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Sample Selection Bias as a Specification Error
James J. Heckman · Econometrica · 1979 · 28.9K citations
Developmental potential in the first 5 years for children in developing countries
Sally Grantham‐McGregor, Yin Bun Cheung, Santiago Cueto et al. · The Lancet · 2007 · 3.6K citations · Full text
Dummy Endogenous Variables in a Simultaneous Equation System
James J. Heckman · Econometrica · 1978 · 1.9K citations