Branstetter, Lee; Ogura, Yoshiaki - National Bureau of Economic Research (NBER) - 2005
? Does this trend indicate that stronger knowledge spillovers from academia have helped power the surge in innovative … emphasis on the use of the knowledge generated by university-based scientists in later years. However, the concentration of … patent-to-paper citation activity within what we call the "bio nexus" suggests that much of the contribution of knowledge …