Background: Early Colleges (ECs) are a type of rapidly growing dual enrollment program proven to be successful in helping underrepresented students get a jumpstart on their postsecondary education. To date, the most rigorous evidence on the impact of ECs has come from two lottery-based natural experiments conducted by the SERVE Center (Edmunds et…

I analyze the longer-run effects of a college-preparatory program implemented in inner-city schools that included payments to eleventh- and twelfth- grade students and their teachers for passing scores on Advanced Placement exams. Affected students attended college in greater numbers, were more likely to remain in college beyond their first year,…