Education policy makers have struggled for decades with the question of how to best serve high ability K‐12 students. As in the debate over selective college admissions, a key issue is targeting. Should gifted and talented programs be allocated on the basis of cognitive ability, or a broader...

We study social interactions in the risky behavior of best-friend pairs in the National Longitudinal Study of Adolescent Health (Add Health). Focusing on friends who had not yet initiated a particular behavior (sex, smoking, marijuana use, truancy) by the first wave of the survey, we estimate...

We study social interactions in the initiation of sex and other risky behaviors by best friend pairs in the Add Health panel. Focusing on friends with minimal experience at the baseline interview, we estimate bivariate ordered-choice models that include both peer effects and unobserved...

This paper surveys the recent literature on the causal relationship between education and earnings. I focus on four areas of work: theoretical and econometric advances in modelling the causal effect of education in the presence of heterogeneous returns to schooling; recent studies that use...

Using nine years of personnel records from a regional grocery store chain in the United States, this study examines the effect of manager ethnicity on the ethnic composition of employment. Because the workforce we study is composed almost entirely of a white majority and large Hispanic minority,...

Using personnel data from a large U.S. retail firm, we examine whether the race of the hiring manager affects the racial composition of new hires. We exploit manager changes at hundreds of stores to estimate models with store fixed effects. We find significant effects of manager race and...

Using data from a large U.S. retail firm, we examine how racial matches between managers and their employees affect rates of employee quits, dismissals and promotions. We exploit changes in management at hundreds of stores to estimate hazard models with store fixed effects that control for all...

Using data from a large U.S. retail firm, we examine how differences in race, age, and gender between a manager and a subordinate affect the subordinate’s rate of quits, dismissals, and promotions. These differences can have statistically significant and sometimes large effects— especially...

We test for customer discrimination with data from more than 800 retail stores employing over 70,000 individuals matched to census data on the demographics of each store's community. While our tests detect some increase in sales when the workforce more closely resembles potential customers, the...

Using personnel data from a large US retail firm, I examine the firm’s response to the 1996 federal minimum wage increase. Compulsory increases in average wages had negative but statistically insignificant effects on overall employment. However, increases in the relative wages of teenagers led...