We explore the impact of geographic dispersion of a firm's R&D activities on the quality of its innovative output. Using data on over half a million patents from 1,127 firms, we find that having geographically distributed R&D per se does not improve the quality of a firm's innovations. In fact,...

Prior literature has established that international collaboration on R&D is an important means for generating new and impactful ideas through the cross-border integration of knowledge. We show that cross-country collaboration improves not just the resulting inventions, but also has a long-term...