This grant supports a project by UCLA Professor of Information Studies Christine Borgman to investigate the role of three key variables that influence the circulation of data in a given scientific community: diversity of disciplines, degree of centralization of data collection, and scale of data (i.e., “big” vs. “long-tail”). Through a set of research sites drawn from astronomy, ocean science, and biomedicine, and leveraging over a decade of data collected and coded from additional research sites, Borgman and her team will chart how these three attributes influence data practices. The resulting work will shed light on how the structure of scientific collaborations affects the willingness to share data, and help identify those areas of the scientific enterprise that may be more or less amenable to widespread data sharing. In addition to academic publications, Borgman’s work will produce implementable guidelines that could inform the design of future efforts by private and government funders interested in increasing data sharing in the sciences.