The author reviews the return-on-investment literature from "well-resourced, good
quality Early Childhood Education program[s] for a reasonable period of time" (including Perry Preschool, Head Start, Abecedarian, Chicago study) and outlines short, medium and long-term benefits and cost savings.
Clive Belfield, Teachers College at Columbia University, February 2004
See this resource at
http://www.winningbeginningny.org/databank/documents/belfield_report_000.pdf
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