Existing research provides little insight into the relative merits of universal programs and those targeted to specific groups. While there have been several recent studies of the short-term effects of universal preschool programs in the U.S., there is no evidence to date on long-term consequences. Some studies suggest that Head Start has lasting…

Early childhood education has received an increasing amount of attention in the last two decades in the United States and in other countries. There is now a strong consensus on the many benefits of preschool. Studies have shown that attending a high-quality preschool program not only increases children's readiness for kindergarten, but also causes…