The two aspects of research and development (R&D) involving the stimulation of innovation and the facilitation of technology transfer are examined. There has been little econometric work done that assesses the statistical significance and quantitative importance of the technology transfer aspect...

We examine the "home bias" of knowledge spillovers (the idea that knowledge spreads more slowly over international boundaries than within them) as measured by the speed of patent citations. We present econometric evidence that the geographical localization of knowledge spillovers has fallen over...