Title: Designing Information about Co-workers' Successes

Abstract: Firms consist of teams of workers whose effort often impacts the team as a whole positively, and others' progress, either positively or negatively. Firms can also design how much information should workers have access to when each worker can generate private successes for themselves and the firm. Should workers know when other workers are successful? I study cases when each worker can generate at most one success for themselves and the firm, and where the workers' incentives only depend on the expected number of successful co-workers. This simplifies and reduces the dimensionality of the information-design problem of the firm. I obtain the optimal information policy for the firm for general cross-worker effects. As specific examples, I show that the optimal information policy is to delay full information till a probabilistic time in the case of complementary effort, and provide full information in case of substitutable effort.