We explore whether early childhood human-capital investments are complementary to those made later in life. Using the Panel Study of Income Dynamics, we compare the adult outcomes of cohorts who were differentially exposed to policy-induced changes in pre-school (Head Start) spending and...

We use 1940 Census data to study the intergenerational transmission of human capital for children born in the 1920s and educated during an era of expanding but unequally distributed public school resources. Looking at the gains in educational attainment between parents and children, we document...

Studies of small-scale "model" early-childhood programs show that high-quality preschool can have transformative effects on human capital and economic outcomes. Evidence on the Head Start program is more mixed. Inputs and practices vary widely across Head Start centers, however, and little is...

We document substantial variation in the effects of a highly-effective literacy pro-gram in northern Uganda. The program increases test scores by 1.40 SDs on average, but standard statistical bounds show that the impact standard deviation exceeds 1.0SD. This implies that the variation in effects...

We investigate equilibrium impacts of federal policies such as free-college proposals, taking into account that human capital production is cumulative and that state governments have resource constraints. In the model, a state government cares about household welfare and aggregate educational...

An outstanding challenge in education is improving learning among low-achieving students. We present results from the first randomized experiment of an inquiry-based remedial science-education program for low-performing elementary students in the setting of a developing country. At 48 low-income...

We study the impacts of a tracking program in a large urban school district that establishes separate "gifted/high achiever" (GHA) classrooms for fourth and fifth graders whenever there is at least one gifted student in a school-wide cohort. Since most schools have only a handful of gifted...

Comparisons of schools that barely meet or miss criteria for adequate yearly progress (AYP) reveal that some sanctions built into the No Child Left Behind accountability regime exert positive impacts on students. Estimates indicate that the strongest positive effects associate with the ultimate...

Pathways to Education is a comprehensive youth support program developed to improve academic outcomes among those entering high school from very poor social-economic backgrounds. The program includes proactive mentoring to each student, daily tutoring, group activities, career counseling, and...

The No Child Left Behind (NLCB) Act required states to adopt accountability systems measuring student proficiency on state administered exams. Based on student test score performance in 2002, states developed initial proficiency rate targets and future annual benchmarks designed to lead students...