We measure the efficiency of regional innovation systems (RIS) in Germany by means of a knowledge production function … spatial autocorrelation. -- Knowledge ; innovation ; spillovers ; patents ; regional analysis … second approach assesses regional differences within the framework of a stochastic frontier knowledge production function …

in innovation activity between regions have so far been rather unsuccessful. Using a unique data set which contains … in the efficiency of innovation activities can be found. This variation is in correspondence with a center … differences in efficiency of regional innovation systems can be explained by differences in R&D-cooperation behavior. …