The large body of literature dealing with inter-organizational collaboration has advanced three different perspectives to understand and explain partner selection decisions. According to the 'social capital' view in the literature, organizations rely on prospective partner information that they obtain by being embedded in a network structure. Two other perspectives are the network strategy perspective, where organizations rely on their map of the network structure, and non-network information based on specific partner characteristics (i.e. 'nodal attributes'). In this study, we simultaneously consider and compare these three different sources of information for partner selection decisions.