What differentiates two candidates of color for a job? It's not always the résumé. In many cases, skin tone makes the difference, according to University of Georgia (UGA) doctoral student Matthew Harrison, who conducted the first study of the impact of skin tone in the workplace. Harrison conducted the study with 240 psychology undergraduates at UGA. Each participant received one of two résumés that varied by educational and work experience. Along with the résumés, the participants received one of six pictures of candidates, all black, who varied by skin tone and gender. They then were asked to rate the candidate...