This paper estimates the international diffusion and obsolescence of technological knowledge by technological field and … speed of diffusion and decay of technological knowledge. We support the conjecture that not only technological opportunities …

in knowledge spillovers. Drawing on the NBER Patent Citations Database, we examine patent citations data at metropolitan … of cited patent, which implies that new knowledge faces the largest barriers to diffusion. However, over time, border and … sources of overestimated aggregate border effects of knowledge spillovers. While self-citations are only 11% of total …

in knowledge spillovers. Drawing on the NBER Patent Citations Database, we examine patent citations data at metropolitan … of cited patent, which implies that new knowledge faces the largest barriers to diffusion. However, over time, border and … sources of overestimated aggregate border effects of knowledge spillovers. While self-citations are only 11% of total …

spillovers and technological distance between sector-countries on further knowledge flows. For this purpose, we develop a … indicate that knowledge accumulated in the output sector-country and - in some cases - external spillovers are key in …-countries shows that spillovers are more useful for the generation of knowledge flows if the input sector-country is low-tech. Low …

spillovers and technological distance between sector-countries on further knowledge flows. For this purpose, we develop a … indicate that knowledge accumulated in the output sector-country and - in some cases - external spillovers are key in …-countries shows that spillovers are more useful for the generation of knowledge flows if the input sector-country is low-tech. Low …

This paper estimates the process of diffusion and decay of knowledge from university, public laboratories and corporate …

This paper estimates the diffusion and obsolescence of technological knowledge by technological field, country and type … Hall et al. (2001), we test whether the observed processes of knowledge diffusion and obsolescence reflect the specific …

This paper analyses the nature of knowledge spillovers from research and development (R&D) in the field of liquid …