External Bridging and Internal Bonding: Unlocking the Generative Resources of Member Time and Attention Spent in Online Communities1
研究了在线社区成员在外部社区投入的时间和注意力如何成为生成性资源，发现只有当社区同时具备外部桥接（连接非冗余社区）和内部联结（成员间凝聚力）时，这种外部投入才能提升社区响应性。
Sharing members with other online communities can be problematic for community responsiveness, as less member time and attention become available for the focal community. However, member time and attention spent externally have the potential to generate knowledge that bolsters the focal community’s responsiveness. Little is known about when member time and attention spent externally become such generative resources. Building on and extending the knowledge collaboration theory of online communities, we examine the network conditions that enable the generative effect of member time and attention spent externally on community responsiveness. We propose a contingent model wherein a focal community’s external bridging (the extent of bridging nonredundant communities) and internal bonding (the extent of cohesion among members) jointly moderate the effects of member time and attention spent externally on community responsiveness. We theorize that external bridging provides the opportunity to access novel external knowledge and that internal bonding improves the motivation to share knowledge to assist others. Our results show that member time and attention spent externally have a positive effect on community responsiveness only in the presence of both external bridging and internal bonding. The study has important implications for advancing the boundary conditions regarding generative resources and online knowledge collaboration.