
For every dollar invested in boosting preschool enrollment, middle- and low-income countries would see a return of some $6.40 to $17.60, according to a new analysis published September 22 in The Lancet. “Early childhood is the most effective and cost-effective time to ensure that all children develop to their full potential,” noted the authors, led by Patrice Engle, of California Polytechnic State University. “The returns on investment in early child development are substantial.”
blogs.scientificamerican.com/observations/2011/09/22/preschool-funding-for-kids-now-pays-off-billions-later/