or output of a knowledge production function. We suggest that the productivity of research in patent production functions … to patentable knowledge, and development happens after the initial research phase that may have led to a patent. Instead … of using data on R&D, we separate the knowledge creating process into 'R' and 'D'. This data stems from R&D surveys of …

Concerns have been raised that demographic ageing may weaken the competitiveness of knowledge-based economies and … Germany using a flexible knowledge production function and accounting for potential endogeneity of the regional workforce … presence of older workers as younger and older workers turn out to be complements in the production of knowledge. With …