This paper examines if interpersonal networks help explain two widely documented patterns of knowledge diffusion: (1) geographic localization of knowledge flows, and (2) localization of knowledge flows within firm boundaries. I measure knowledge flows using patent citation data, and employ a...

Geographic localization of knowledge spillovers is a central tenet in multiple streams of literature. However, empirical studies have examined this phenomenon for only one geographic unit - country, state or metropolitan area - at a time, and have also rarely accounted for spatial distance. We...