Abstract
The existence of geographically mediated "spillovers" from university research to commercial innovation is explored using state-level time-series data on corporate patents, corporate R&D, and university research. A significant effect of university research on corporate patents is found, particularly in the areas of Drugs and Medical Technology, and Electronics, Optics, and Nuclear Technology. In addition, university research appears to have an indirect effect on local innovation by inducing industrial R&D spending.