This paper reviews experimental studies that investigate the effects of communication on behavior in organizational settings. Two main classes of studies are identified: (a) studies on coordination and competition, which include experimental research that tests whether communication can help to overcome coordination failure within organizations, and (b) studies that analyze the role of communication in alleviating problems arising from information asymmetries at the workplace. The evidence from these studies indicates that communication is suited to improve efficient coordination within firms and to mitigate information problems in employer-employee relationships. In addition, studies are presented that focus on the interaction between communication and monetary incentive schemes in companies.organizations. The experimental approach is especially well-suited for this purpose for at least the following reasons. First, the effects of communication on behavior are difficult to study with observational field data (for instance, company data), as it is basically impossible to reliably track communication patterns between colleagues or between managers and team members. Second, the alternative of using surveys to get insights into the communication patterns and contents between managers and employees also has some shortcomings. For instance, data from surveys might be noisy and inconsistent due to the lack of explicit incentives to think carefully about potential answers. Survey answers about the role of communication within the organization also might not provide the correct picture because of socially desirable answers (e.g., if employees are asked about the way their supervisors communicate with them).Experiments circumvent some of these problems by providing explicit performance based incentives and by controlling the way communication can take place as well as by restricting the feasible communication content. Regarding the role of communication in organizations mostly laboratory experiments and a few field experiments have been been conducted. Both types of experiments have their advantages and disadvantages (for a discussion, see, e.g., Harrison and List, 2004;Levitt and List, 2007;Falk and Heckman, 2009;Levitt and List, 2009) and should be viewed as complementary approaches in gaining insights into the role of communication at the workplace.This paper focuses on studies related to the topics "coordination and competition" and "asymmetric information" because those are of central relevance for processes within organizations. Coordination of activities is key to achieve the goals of organizations in which a large number of members take independent but interactive decisions. The degree to which coordination can be successfully achieved depends on incentives. In some cases, the incentives of agents are aligned so that everyone profits from successful collaboration, making it relatively easy to achieve coordinated behavior that is also in line with the organization's interest. In other circumstances, agents or organ...