ArticleJournal of political economy microeconomics2026
Reexamining a Multisite Early Childhood Education Program: Gradual Scale-Up, Birth Spacing, and Parental Investment.
Article in Journal of political economy microeconomics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
3 authors.
Funding
Abstract
We reexamine a multisite, randomized, high-quality early childhood education program that unintentionally oversampled twins by targeting premature low-birthweight children. We find that birth spacing determines program effectiveness. For singletons, outcome gains up to age eighteen replicate across sites, and are comparable to gains observed for iconic programs like the Perry Preschool Project. For twins, gains become negative by age eighteen. Program impacts on parental investment (parenting) mediate outcome differences; the program increases parenting for singletons and decreases it for twins. A household production model indicates that the possibility of jointly supplying inputs to twins explains the decrease in parenting.
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