Fritsch, Michael; Slavtchev, Viktor - European Regional Science Association - 2005
differences. The innovation indicator used in our analysis is the number of patents. The knowledge sources included are: •R&D … employment, •R&D employment in small firms and large firms respectively, •Qualification of the regional workforce, •Qualification … German regions in the 1990s. Information on the yearly number of patents relates to the years 1995-2000. regional employment …