From the NEA website:
Early childhood education: one of the best investments our country can make.
Long-Term Benefits of Early Childhood Education
Research shows that providing a high quality education for children before they turn five yields significant long-term benefits.
One well-known study, the HighScope Perry Preschool Study, found that individuals who were enrolled in a quality preschool program ultimately earned up to $2,000 more per month than those who were not. Young people who were in preschool programs are more likely to graduate from high school, to own homes, and have longer marriages.
Other studies, like The Abecedarian Project, show similar results. Children in quality preschool programs are less likely to repeat grades, need special education, or get into future trouble with the law.
Early childhood education makes good economic sense, as well. In Early Childhood Development: Economic Development with a High Public Return, a high-ranking Federal Reserve Bank official pegs its return on investment at 12 percent, after inflation.
NEA Is Committed to Improving Early Childhood Education
High quality early childhood education represents one of the best investments our country can make. NEA believes it's a common sense investment we can't afford to pass up. NEA recommends, among other things: