Holly Chiu, an associate professor of business management at Brooklyn College, reported in a study published in 2018 that employees who engage in sharing job-related knowledge with their co-workers enlarge their own expertise in the bargain. By “systematically going through the knowledge, examining it, understanding it, integrating it and presenting it,” Chiu notes, these workers increased the depth and breadth of their knowledge, and subsequently turned in job performances that were rated more highly by their supervisors.

