Specialized knowledge-generating jobs comprise close to one fifth of employment and one fourth of the wage bill in French manufacturing firms. They are positioned high in the firm hierarchy, horizontally aside upper-tier managers but are not managerial in nature. This escapes the patterns...

What makes diversity unifying in some settings but divisive in others? We examine how the mixing of ethnic groups in German schools affects intergroup cooperation and trust. We leverage the quasi-random assignment of students to classrooms within schools to obtain variation in the type of...