We explore the evolution of income inequality and mobility in the U.S. for a large number of subnational groups defined by race and ethnicity, using granular statistics describing income distributions, income mobility, and conditional income growth derived from the universe of tax filers and W-2...

This paper presents results from a randomized control trial in which approximately 1,000 OLPC XO laptops were provided for home use to children attending primary schools in Lima, Peru. The intervention increased access and use of home computers, with some substitution away from computer use...

This paper provides experimental evidence for the impact of home internet access on a broad range of child outcomes in Peru. We compare children who were randomly chosen to receive laptops with high-speed internet access to (i) those who did not receive laptops and (ii) those who only received...

College-educated workers are twice as likely as high school graduates to make lasting long-distance moves, but little is known about the role of college itself in determining geographic mobility. Unobservable characteristics related to selection into college might also drive the relationship...

We examine whether highlighting streaks encourages 4th to 6th grade students in Peru to increase their use of an online math platform and improve learning. Sixty thousand students were randomly assigned to receive messages that i) highlighted streaks, ii) provided personalized reminders with...

How much do schools differ in their effectiveness? Recent studies that seek to answer this question account for student sorting using random assignment generated by central allocation mechanisms or oversubscribed schools. However, the resulting estimates, while causal, may also reflect peer...

We exploit exogenous variation in college completion induced by draft-avoidance behavior during the Vietnam War to examine the impact of college completion on adult mortality. Our preferred estimates imply that increasing college completion rates from the level of the state with the lowest...

This paper provides experimental evidence for the impact of home internet access on a broad range of child outcomes in Peru. Children who were randomly chosen to receive laptops with high-speed internet access are compared with i) those who did not receive laptops and ii) those who only received...

"This paper examines the relative benefits of general education and vocational training in Romania, a country which experienced major technological and institutional change during its transition from Communism to a market economy. To avoid the bias caused by non-random selection, we exploit a...