They not only introduce a systematic approach to the previously under-researched area of information use by managers, they also contextualize the many fragmented findings in diverse literatures. For example, while they confirm findings in the computing, decision sciences, and management literatures that emphasize the importance of interpersonal communications as an information source, they also describe how and why managers use informal sources in order to disseminate hard, factual data. Their findings suggest that such data may sometimes be more efficiently and effectively transmitted by informal verbal communication than by attempting to incorporate them into standard reports. Similarly, BM confirm managers' preference for daily non monetary information in order to manage their key activities, but contribute to the existing literature by explaining how this transforms over the space of a month into a keen interest in the financial reports that summarize and aggregate this information.