The importance of innovation for the economic performance of industrialized countries has been largely stressed … innovation, is the key parameter in determining sustained growth in a model with endogenous technological change. This paper … takles the extremely important task of identifying and estimating a "production function" of innovation for European regions …

of R&D. Our work analyzes knowledge diffusion and knowledge externalities in generating innovation and in determining … productivity of R&D resources in generating innovation (patenting) and productivity (TFP). While we find that knowledge diffusion …